About Textpresso Categories/Ontology Copyright Downloads Feedback Home Query Language Search User Guide
Enter keyword(s) and/or category/ies. Selecting categories for a query makes a search more specific. For example, you can retrieve sentences that contain the word HSN and a Oryza sativa gene name by typing the keyword 'SPW1' and choosing the category 'gene (Oryza sativa)'. A category hit occurs when a particular word or phrase in the sentence is defined as a member of a particular category. Categories will be concatenated by a Boolean 'and' operation to other categories and keyword(s) if present. To search for terms in categories, click on the Categories/Ontology link above.
Keywords
Separate multiple, required keywords by white spaces (Boolean 'and').
Separate multiple, alternative keywords by a comma with no white spaces (Boolean 'or').
Enter phrases in double quotes, and put a '-' sign in front of words which are to be excluded.
Keyword Specification
AND/OR
Categories
Fields
Search Scope
Search Mode
Sort by
 
Narrow your search results with filter:
Put a '+' sign in front of words which have to be included, a '-' sign in front of words which have to be excluded. Enter the field of the word, viz author, title, year, journal, abstract, type or sentence in square brackets. Enter phrases in double quotes.
For example, to find all the papers in the search result that have Jack as author, but not John, enter +Jack-John[author]. To exclude all papers that have the phrase double mutant in title, enter -"double mutant"[title]. You can combine several filters and enter something like +Jack-John[author] -"double mutant"[title] +1994[year] -review[type].
Click on Filter! button to activate the filter.

Goto:
of 1
Display options:
author: on | off accession: on | off type: on | off abstract: on | off title: on | off
citation: on | off journal: on | off year: on | off supplementals: on | off textlinks: on | off
searchterm-highlighting: on | off matching sentences: none 1 5 10 entries/page: 5 10 20 50
29 matches found in 12 documents. Search time: 0.098 seconds.
Global links/files: all results in endnote all results in print version
Score: 14.00
Title: DNA polymorphism in the blast disease resistance gene Pita of the wild rice Oryza rufipogon and its related species .
Author: Yoshida K Miyashita NT
Citation: V : 84 P : 121-36 Year: 2009 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub19556706 Accession (PMID): 19556706
Abstract: Intra-and interspecific DNA variations in the blast resistance gene Pita in wild rice ( Oryza rufipogon ) , cultivated rice ( O sativa ) , and two other related wild rice species ( O meridionalis and O officinalis ) were analyzed to elucidate the nucleotide polymorphism maintenance mechanisms and evolution of Pita in these species . Nucleotide diversity at silent sites of O rufipogon Pita was 0 . 0101 , an intermediate value relative to other O rufipogon nuclear genes . A dimorphic pattern of nucleotide polymorphism was detected in the O rufipogon Pita region . Inoculation of the blast fungus Magnaporthe oryzae verified that the O rufipogon Pita gene resides in a dimorphic sequence type . The resistance Pita allele had lower levels of variation than the susceptibility pita allele . A hypothesis of evolutionary relationships indicated that the amino acid mutation in the O rufipogon Pita protein responsible for the difference between resistance and susceptibility occurred relatively recently . These results suggested that the resistance Pita originated from the susceptibility pita . Nucleotide diversity at replacement sites of the leucine-rich domain ( LRD ) of both the resistance and susceptibility O rufipogon pita was low . In tests of neutrality , significantly negative values were detected for the LRD of O rufipogon susceptibility pita . The low nucleotide diversity at replacement sites of the LRD of the susceptibility pita could be explained by purifying selection . Comparison of Pita between O rufipogon and O officinalis revealed an excess of nonconservative amino acid substitutions in the LRD , which could be related to the host-pathogen interaction .
Matching Sentences:
[ Sen. 1, subscore: 2.00 ]: Intra-and interspecific DNA variations in the blast resistance gene Pita in wild rice ( Oryza rufipogon ) , cultivated rice ( O sativa ) , and two other related wild rice species ( O meridionalis and O officinalis ) were analyzed to elucidate the nucleotide polymorphism maintenance mechanisms and evolution of Pita in these species .
[ Sen. 5, subscore: 2.00 ]: The resistance Pita allele had lower levels of variation than the susceptibility pita allele .
[ Sen. 7, subscore: 2.00 ]: These results suggested that the resistance Pita originated from the susceptibility pita .
[ Sen. 2, subscore: 1.00 ]: Nucleotide diversity at silent sites of O rufipogon Pita was 0 . 0101 , an intermediate value relative to other O rufipogon nuclear genes .
[ Sen. 3, subscore: 1.00 ]: A dimorphic pattern of nucleotide polymorphism was detected in the O rufipogon Pita region .
[ Sen. 4, subscore: 1.00 ]: Inoculation of the blast fungus Magnaporthe oryzae verified that the O rufipogon Pita gene resides in a dimorphic sequence type .
[ Sen. 6, subscore: 1.00 ]: A hypothesis of evolutionary relationships indicated that the amino acid mutation in the O rufipogon Pita protein responsible for the difference between resistance and susceptibility occurred relatively recently .
[ Sen. 8, subscore: 1.00 ]: Nucleotide diversity at replacement sites of the leucine-rich domain ( LRD ) of both the resistance and susceptibility O rufipogon pita was low .
[ Sen. 9, subscore: 1.00 ]: In tests of neutrality , significantly negative values were detected for the LRD of O rufipogon susceptibility pita .
[ Sen. 10, subscore: 1.00 ]: The low nucleotide diversity at replacement sites of the LRD of the susceptibility pita could be explained by purifying selection .
[ Sen. 11, subscore: 1.00 ]: Comparison of Pita between O rufipogon and O officinalis revealed an excess of nonconservative amino acid substitutions in the LRD , which could be related to the host-pathogen interaction .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 4.00
Title: Development of PCR-based allele-specific and InDel marker sets for nine rice blast resistance genes .
Author: Hayashi K Yoshida H Ashikawa I
Citation: V : ( ) P : Year: 2006 Type: ARTICLE
Literature: oryza Field: abstract Doc ID: pub16673143 Accession (PMID): 16673143
Abstract: Blast resistance is one of the most important traits in rice breeding , and application of molecular markers for blast resistance breeding is likely to allow the rapid screening for the trait during early growth stages , without the need for inoculation of pathogen and phenotyping . Allele-specific PCR markers and insertion/deletion ( InDel ) markers , which genotype single-nucleotide polymorphisms and InDel polymorphisms , respectively , are useful tools for marker-assisted selections . We developed sets of allele-specific PCR and InDel markers for nine rice blast resistance genes-Piz , Piz-t , Pit , Pik , Pik-m , Pik-p , Pita , Pita-2 , and Pib-which are commonly used in Japanese blast resistance rice breeding programs . For each resistance gene , we used the segregation information from thousands of progeny in several crosses or published gene locations to generate a marker that cosegregated with the gene and markers that closely flanked the gene on either side . The developed cosegregating markers uniquely discriminated among each of the lines with the individual resistance genes ( except for Pita and Pita-2 ) . Therefore , these markers will likely facilitate the development of multiline cultivars carrying one or a combination of these nine blast resistance genes . In addition , the systems we developed may be valuable tools in the quality control of seed production from blast-resistant multiline cultivars .
Matching Sentences:
[ Sen. 3, subscore: 2.00 ]: We developed sets of allele-specific PCR and InDel markers for nine rice blast resistance genes-Piz , Piz-t , Pit , Pik , Pik-m , Pik-p , Pita , Pita-2 , and Pib-which are commonly used in Japanese blast resistance rice breeding programs .
[ Sen. 5, subscore: 2.00 ]: The developed cosegregating markers uniquely discriminated among each of the lines with the individual resistance genes ( except for Pita and Pita-2 ) .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 4.00
Title: Development of PCR-based allele-specific and InDel marker sets for nine rice blast resistance genes .
Author: Hayashi K Yoshida H Ashikawa I
Citation: V : 113 ( 2 ) P : 251-60 Year: 2006 Type: ARTICLE
Literature: oryza Field: abstract Doc ID: pub16791691 Accession (PMID): 16791691
Abstract: Blast resistance is one of the most important traits in rice breeding , and application of molecular markers for blast resistance breeding is likely to allow the rapid screening for the trait during early growth stages , without the need for inoculation of pathogen and phenotyping . Allele-specific PCR markers and insertion/deletion ( InDel ) markers , which genotype single-nucleotide polymorphisms and InDel polymorphisms , respectively , are useful tools for marker-assisted selections . We developed sets of allele-specific PCR and InDel markers for nine rice blast resistance genes -- Piz , Piz-t , Pit , Pik , Pik-m , Pik-p , Pita , Pita-2 , and Pib -- which are commonly used in Japanese blast resistance rice breeding programs . For each resistance gene , we used the segregation information from thousands of progeny in several crosses or published gene locations to generate a marker that cosegregated with the gene and markers that closely flanked the gene on either side . The developed cosegregating markers uniquely discriminated among each of the lines with the individual resistance genes ( except for Pita and Pita-2 ) . Therefore , these markers will likely facilitate the development of multiline cultivars carrying one or a combination of these nine blast resistance genes . In addition , the systems we developed may be valuable tools in the quality control of seed production from blast-resistant multiline cultivars .
Matching Sentences:
[ Sen. 3, subscore: 2.00 ]: We developed sets of allele-specific PCR and InDel markers for nine rice blast resistance genes -- Piz , Piz-t , Pit , Pik , Pik-m , Pik-p , Pita , Pita-2 , and Pib -- which are commonly used in Japanese blast resistance rice breeding programs .
[ Sen. 5, subscore: 2.00 ]: The developed cosegregating markers uniquely discriminated among each of the lines with the individual resistance genes ( except for Pita and Pita-2 ) .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 4.00
Title: Multiple translocation of the AVR-Pita effector gene among chromosomes of the rice blast fungus Magnaporthe oryzae and related species .
Author: Chuma I Isobe C Hotta Y Ibaragi K Futamata N Kusaba M Yoshida K Terauchi R Fujita Y Nakayashiki H Valent B Tosa Y
Citation: V : 7 P : e1002147 Year: 2011 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub21829350 Accession (PMID): 21829350
Abstract: Magnaporthe oryzae is the causal agent of rice blast disease , a devastating problem worldwide . This fungus has caused breakdown of resistance conferred by newly developed commercial cultivars . To address how the rice blast fungus adapts itself to new resistance genes so quickly , we examined chromosomal locations of AVR-Pita , a subtelomeric gene family corresponding to the Pita resistance gene , in various isolates of M oryzae ( including wheat and millet pathogens ) and its related species . We found that AVR-Pita ( AVR-Pita1 and AVR-Pita2 ) is highly variable in its genome location , occurring in chromosomes 1 , 3 , 4 , 5 , 6 , 7 , and supernumerary chromosomes , particularly in rice-infecting isolates . When expressed in M oryzae , most of the AVR-Pita homologs could elicit Pita-mediated resistance , even those from non-rice isolates . AVR-Pita was flanked by a retrotransposon , which presumably contributed to its multiple translocation across the genome . On the other hand , family member AVR-Pita3 , which lacks avirulence activity , was stably located on chromosome 7 in a vast majority of isolates . These results suggest that the diversification in genome location of AVR-Pita in the rice isolates is a consequence of recognition by Pita in rice . We propose a model that the multiple translocation of AVR-Pita may be associated with its frequent loss and recovery mediated by its transfer among individuals in asexual populations . This model implies that the high mobility of AVR-Pita is a key mechanism accounting for the rapid adaptation toward Pita . Dynamic adaptation of some fungal plant pathogens may be achieved by deletion and recovery of avirulence genes using a population as a unit of adaptation .
Matching Sentences:
[ Sen. 3, subscore: 1.00 ]: To address how the rice blast fungus adapts itself to new resistance genes so quickly , we examined chromosomal locations of AVR-Pita , a subtelomeric gene family corresponding to the Pita resistance gene , in various isolates of M oryzae ( including wheat and millet pathogens ) and its related species .
[ Sen. 5, subscore: 1.00 ]: When expressed in M oryzae , most of the AVR-Pita homologs could elicit Pita-mediated resistance , even those from non-rice isolates .
[ Sen. 8, subscore: 1.00 ]: These results suggest that the diversification in genome location of AVR-Pita in the rice isolates is a consequence of recognition by Pita in rice .
[ Sen. 10, subscore: 1.00 ]: This model implies that the high mobility of AVR-Pita is a key mechanism accounting for the rapid adaptation toward Pita .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 3.00
Title: One of two major paralogs of AVR-Pita1 is functional in Japanese rice blast isolates .
Author: Takahashi M Ashizawa T Hirayae K Moriwaki J Sone T Sonoda R Noguchi MT Nagashima S Ishikawa K Arai M
Citation: V : 100 P : 612-8 Year: 2010 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub20465417 Accession (PMID): 20465417
Abstract: We analyzed the avirulence gene AVR-Pita1 in Japanese rice blast isolates to determine how they gain virulence toward rice cultivars containing the Pita resistance gene . An avirulent isolate , OS99-G-7a ( G7a ) , from a Japanese commercial field contained two paralogs of AVR-Pita1 , designated as AVR-Pita1 ( JA ) and AVR-Pita1 ( JB ) . Analysis of virulent , independent mutants derived from G7a , a single avirulent progenitor strain , indicated that AVR-Pita1 ( JA ) was functional but AVR-Pita1 ( JB ) was nonfunctional The most frequent mutation was loss of AVR-Pita1 ( JA ) . Analyses of field isolates collected from diverse areas in Japan revealed that most of the AVR-Pita1 genes carried by Japanese isolates were identical to AVR-Pita1 ( JA ) or AVR-Pita1 ( JB ) . The relationship between these major paralogs in Japanese isolates and the virulence of the strains carrying them indicate that AVR-Pita1 ( JA ) is functional but AVR-Pita1 ( JB ) is not , as is the case in G7a . Isolates that show virulence toward rice cultivars containing the Pita gene are presumed to have evolved virulence from avirulent origins via loss of AVR-Pita1 ( JA ) , except for one case in which virulence resulted from a base substitution . In this study , we discuss the properties and specificities of Japanese rice blasts that relate to virulence against Pita-containing rice . Furthermore , we present a method to amplify AVR-Pita1 ( JA ) and AVR-Pita1 ( JB ) separately and , specifically , to monitor functional AVR-Pita1 in Japan .
Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: We analyzed the avirulence gene AVR-Pita1 in Japanese rice blast isolates to determine how they gain virulence toward rice cultivars containing the Pita resistance gene .
[ Sen. 6, subscore: 1.00 ]: Isolates that show virulence toward rice cultivars containing the Pita gene are presumed to have evolved virulence from avirulent origins via loss of AVR-Pita1 ( JA ) , except for one case in which virulence resulted from a base substitution .
[ Sen. 7, subscore: 1.00 ]: In this study , we discuss the properties and specificities of Japanese rice blasts that relate to virulence against Pita-containing rice .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: The in silico map-based cloning of Pi36 , a rice coiled-coil nucleotide-binding site leucine-rich repeat gene that confers race-specific resistance to the blast fungus .
Author: Liu X Lin F Wang L Pan Q
Citation: V : 176 P : Sep-41 Year: 2007 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub17507669 Accession (PMID): 17507669
Abstract: The indica rice variety Kasalath carries Pi36 , a gene that determines resistance to Chinese isolates of rice blast and that has been located to a 17-kb interval on chromosome 8 . The genomic sequence of the reference japonica variety Nipponbare was used for an in silico prediction of the resistance ( R ) gene content of the interval and hence for the identification of candidate gene ( s ) for Pi36 . Three such sequences , which all had both a nucleotide-binding site and a leucine-rich repeat motif , were present . The three candidate genes were amplified from the genomic DNA of a number of varieties by long-range PCR , and the resulting amplicons were inserted into pCAMBIA1300 and/or pYLTAC27 vectors to determine sequence polymorphisms correlated to the resistance phenotype and to perform transgenic complementation tests . Constructs containing each candidate gene were transformed into the blast-susceptible variety Q1063 , which allowed the identification of Pi36-3 as the functional gene , with the other two candidates being probable pseudogenes . The Pi36-encoded protein is composed of 1056 amino acids , with a single substitution event ( Asp to Ser ) at residue 590 associated with the resistant phenotype . Pi36 is a single-copy gene in rice and is more closely related to the barley powdery mildew resistance genes Mla1 and Mla6 than to the rice blast R genes Pita , Pib , Pi9 , and Piz-t . An RT-PCR analysis showed that Pi36 is constitutively expressed in Kasalath .
Matching Sentences:
[ Sen. 7, subscore: 1.00 ]: Pi36 is a single-copy gene in rice and is more closely related to the barley powdery mildew resistance genes Mla1 and Mla6 than to the rice blast R genes Pita , Pib , Pi9 , and Piz-t .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: The blast resistance gene Pi37 encodes a nucleotide binding site leucine-rich repeat protein and is a member of a resistance gene cluster on rice chromosome 1 .
Author: Lin F Chen S Que Z Wang L Liu X Pan Q
Citation: V : 177 P : 1871-80 Year: 2007 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub17947408 Accession (PMID): 17947408
Abstract: The resistance ( R ) gene Pi37 , present in the rice cultivar St No 1 , was isolated by an in silico map-based cloning procedure . The equivalent genetic region in Nipponbare contains four nucleotide binding site-leucine-rich repeat ( NBS-LRR ) type loci . These four candidates for Pi37 ( Pi37-1 , -2 , -3 , and -4 ) were amplified separately from St No 1 via long-range PCR , and cloned into a binary vector . Each construct was individually transformed into the highly blast susceptible cultivar Q1063 . The subsequent complementation analysis revealed Pi37-3 to be the functional gene , while -1 , -2 , and -4 are probably pseudogenes . Pi37 encodes a 1290 peptide NBS-LRR product , and the presence of substitutions at two sites in the NBS region ( V239A and I247M ) is associated with the resistance phenotype . Semiquantitative expression analysis showed that in St No 1 , Pi37 was constitutively expressed and only slightly induced by blast infection . Transient expression experiments indicated that the Pi37 product is restricted to the cytoplasm . Pi37-3 is thought to have evolved recently from -2 , which in turn was derived from an ancestral -1 sequence . Pi37-4 is likely the most recently evolved member of the cluster and probably represents a duplication of -3 . The four Pi37 paralogs are more closely related to maize rp1 than to any of the currently isolated rice blast R genes Pita , Pib , Pi9 , Pi2 , Piz-t , and Pi36 .
Matching Sentences:
[ Sen. 11, subscore: 1.00 ]: The four Pi37 paralogs are more closely related to maize rp1 than to any of the currently isolated rice blast R genes Pita , Pib , Pi9 , Pi2 , Piz-t , and Pi36 .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: [ Cloning and analyzing of rice blast resistance gene Pi-ta+ allele from Jinghong erect type of common wild rice ( Oryza rufipogon Griff ) in Yunnan ]
Author: Geng XS Yang MZ Huang XQ Cheng ZQ Fu J Sun T Li J
Citation: V : 30 P : 109-14 Year: 2008 Type: In-Process
Literature: oryza Field: abstract Doc ID: pub18244911 Accession (PMID): 18244911
Abstract: A 4 , 672 bp DNA sequence including the whole coding region and partial non-coding region of rice blast resistance gene Pi-ta+ has been cloned from Jinghong erect type of common wild rice ( Oryza rufipogon Griff ) in Yunnan by polymerase chain reaction method . The coding region shares 99 . 86% and 98 . 78% identity with the corresponding regions of the reported cultivated rice Yashiro-mochi and Yuanjiang type of common wild rice respectively . There are 4 nucleotides difference in the coding region and 6 in intron of the cloned Pi-ta+ gene , compared with Pi-ta from Yashiro-mochi . Pi-ta+ gene in Jinghong erect type of common wild rice has been proved to be a rare existing Pi-ta+ allele , because there was a alanine rather than a serine at the position 918 within the predicted amino acid sequence of PITA . Pi-ta+ allele can cause disease resistance response to rice blast pathogens in plant cells . Differences in DNA sequence , deduced amino acid sequence and antibacterial spectrum may make the Pi-ta+ allele new resistant characteristics . Finding and cloning of Pi-ta+ allele from Jinghong erect type of common wild rice in Yunnan provides a basement for further utilization of the wild rice resources .
Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: Pi-ta+ gene in Jinghong erect type of common wild rice has been proved to be a rare existing Pi-ta+ allele , because there was a alanine rather than a serine at the position 918 within the predicted amino acid sequence of PITA .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: Development of near-isogenic Japonica rice lines with enhanced resistance to Magnaporthe grisea .
Author: Kwon SW Cho YC Kim YG Suh JP Jeung JU Roh JH Lee SK Jeon JS Yang SJ Lee YT
Citation: V : 25 P : 407-16 Year: 2008 Type: In-Process
Literature: oryza Field: abstract Doc ID: pub18443412 Accession (PMID): 18443412
Abstract: Thirteen near-isogenic lines ( NILs ) of japonica rice were developed via a backcross method using the recurrent parent Chucheong , which is of good eating quality but is susceptible to Magnaporthe grisea , and three blast resistant japonica donors , Seolak , Daeseong and Bongkwang . The agro-morphological traits of these NILs , such as heading date , culm length , and panicle length , were similar to those of Chucheong . In a genome-wide scan using 158 SSR markers , chromosome segments of Chucheong were identified in most polymorphic regions of the 13 NIL plants , and only a few chromosome segments were found to have been substituted by donor alleles . The genetic similarities of the 13 NILs to the recurrent parent Chucheong averaged 0 . 961 , with a range of 0 . 932-0 . 984 . Analysis of 13 major blast resistance ( R ) genes in these lines using specific DNA markers showed that each NIL appeared to contain some combination of the four R genes , Pib , Pii , Pik-m and Pita-2 , with the first three genes being present in each line . Screening of nine M grisea isolates revealed that one NIL M7 was resistant to all nine isolates ; the remaining NILs were each resistant to between three and seven isolates , except for NIL M106 , which was resistant to only two isolates . In a blast nursery experiment , all the NILs proved to be more resistant than Chucheong . These newly developed NILs have potential as commercial rice varieties because of their increased resistance to M grisea combined with the desirable agronomic traits of Chucheong . They also provide material for studying the genetic basis of blast resistance .
Matching Sentences:
[ Sen. 5, subscore: 1.00 ]: Analysis of 13 major blast resistance ( R ) genes in these lines using specific DNA markers showed that each NIL appeared to contain some combination of the four R genes , Pib , Pii , Pik-m and Pita-2 , with the first three genes being present in each line .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: Identification of the rice blast resistance gene Pib in the National Small Grains Collection .
Author: Roychowdhury M Jia Y Jia MH Fjellstrom R Cartwright RD
Citation: V : 102 P : 700-6 Year: 2012 Type: MEDLINE
Literature: oryza Field: abstract Doc ID: pub22667447 Accession (PMID): 22667447
Abstract: The Pib gene in rice confers resistance to a wide range of races of the rice blast pathogen , Magnaporthe oryzae , including race IE1k that overcomes Pita , another broad-spectrum resistance gene . In this study , the presence of Pib was determined in 164 rice germplasm accessions from a core subset of the National Small Grains Collection utilizing DNA markers and pathogenicity assays . The presence of Pib was evaluated with two simple sequence repeat ( SSR ) markers and a dominant marker ( Pib-dom ) derived from the Pib gene sequence . Pathogenicity assays using two avirulent races ( IE1k and IB1 ) and a virulent race ( IB54 ) were performed to verify the resistance responses of accessions . Of the 164 accessions evaluated , 109 contained the Pib gene as determined using both SSR markers and pathogenicity assays , albeit different haplotypes were detected . The remaining 52 germplasm accessions were different in their responses to the blast races IB54 , IE1k , and IB1 , thus indicating the presence of R gene ( s ) other than Pib . The accessions characterized in this study could be used for marker-assisted breeding to improve blast resistance in indica and japonica cultivars worldwide .
Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: The Pib gene in rice confers resistance to a wide range of races of the rice blast pathogen , Magnaporthe oryzae , including race IE1k that overcomes Pita , another broad-spectrum resistance gene .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: TAK , an HIV Tat-associated kinase , is a member of the cyclin-dependent family of protein kinases and is induced by activation of peripheral blood lymphocytes and differentiation of promonocytic cell lines .
Author: Yang X Gold MO Tang DN Lewis DE Aguilar-Cordova E Rice AP Herrmann CH .
Citation: V : 94 ( 23 ) P : 12331-6 Year: 1997 Type: ARTICLE
Literature: oryza Field: abstract Doc ID: pub9356449 Accession (PMID): 9356449
Abstract: We have previously identified a cellular protein kinase activity termed TAK that specifically associates with the HIV types 1 and 2 Tat proteins . TAK hyperphosphorylates the carboxyl-terminal domain of the large subunit of RNA polymerase II in vitro in a manner believed to activate transcription [ Herrmann , C H & Rice , A P ( 1995 ) J Virol . 69 , 1612-1620 ] . We show here that the catalytic subunit of TAK is a known human kinase previously named PITALRE , which is a member of the cyclin-dependent family of proteins . We also show that TAK activity is elevated upon activation of peripheral blood mononuclear cells and peripheral blood lymphocytes and upon differentiation of U1 and U937 promonocytic cell lines to macrophages . Therefore , in HIV-infected individuals TAK may be induced in T cells following activation and in macrophages following differentiation , thus contributing to high levels of viral transcription and the escape from latency of transcriptionally silent proviruses .
Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: We show here that the catalytic subunit of TAK is a known human kinase previously named PITALRE , which is a member of the cyclin-dependent family of proteins .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Score: 1.00
Title: DNA polymorphism in the blast disease resistance gene Pita of the wild rice Oryza rufipogon and its related species .
Author: Yoshida K Miyashita NT
Citation: V : 84 P : 121-36 Year: 2009 Type: MEDLINE
Literature: oryza Field: title Doc ID: pub19556706 Accession (PMID): 19556706
Abstract: Intra-and interspecific DNA variations in the blast resistance gene Pita in wild rice ( Oryza rufipogon ) , cultivated rice ( O sativa ) , and two other related wild rice species ( O meridionalis and O officinalis ) were analyzed to elucidate the nucleotide polymorphism maintenance mechanisms and evolution of Pita in these species . Nucleotide diversity at silent sites of O rufipogon Pita was 0 . 0101 , an intermediate value relative to other O rufipogon nuclear genes . A dimorphic pattern of nucleotide polymorphism was detected in the O rufipogon Pita region . Inoculation of the blast fungus Magnaporthe oryzae verified that the O rufipogon Pita gene resides in a dimorphic sequence type . The resistance Pita allele had lower levels of variation than the susceptibility pita allele . A hypothesis of evolutionary relationships indicated that the amino acid mutation in the O rufipogon Pita protein responsible for the difference between resistance and susceptibility occurred relatively recently . These results suggested that the resistance Pita originated from the susceptibility pita . Nucleotide diversity at replacement sites of the leucine-rich domain ( LRD ) of both the resistance and susceptibility O rufipogon pita was low . In tests of neutrality , significantly negative values were detected for the LRD of O rufipogon susceptibility pita . The low nucleotide diversity at replacement sites of the LRD of the susceptibility pita could be explained by purifying selection . Comparison of Pita between O rufipogon and O officinalis revealed an excess of nonconservative amino acid substitutions in the LRD , which could be related to the host-pathogen interaction .
Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: DNA polymorphism in the blast disease resistance gene Pita of the wild rice Oryza rufipogon and its related species .
Supplemental links/files: reference in endnote online text related articles pubmed citation
Goto:

© Textpresso Fri Mar 29 07:41:09 2024 .