Score: 3.00 |
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| Title: Fine mapping and candidate gene analysis of hwh1 and hwh2 , a set of complementary genes controlling hybrid breakdown in rice .
| | Author: Jiang W Chu SH Piao R Chin JH Jin YM Lee J Qiao Y Han L Piao Z Koh HJ | | Journal: Theor Appl Genet Citation: V : P : Year: 2008 Type: Publisher | | Literature: oryza Field: abstract Doc ID: pub18335199 Accession (PMID): 18335199 | | Abstract: Hybrid breakdown ( HB ) , a phenomenon of reduced viability or fertility accompanied with retarded growth in hybrid progenies , often arises in the offspring of intersubspecific hybrids between indica and japonica in rice .
We detected HB plants in F ( 8 ) recombinant inbred lines derived from the cross between an indica variety , Milyang 23 , and a japonica variety , Tong 88-7 .
HB plants showed retarded growth , with fewer tillers and spikelets .
Genetic analysis revealed that HB was controlled by the complementary action of two recessive genes , hwh1 and hwh2 , originating from each of both parents , which were fine-mapped on the short arm of chromosome 2 and on the near centromere region of the long arm of chromosome 11 , respectively .
A comparison of the sequences of candidate genes among both parents and HB plants revealed that hwh1 encoded a putative glucose-methanol-choline oxidoreductase with one amino acid change compared to Hwh1 and that hwh2 probably encoded a putative hexose transporter with a six amino acid insertion compared to Hwh2 .
Investigation of the distribution of these alleles among 54 japonica and indica cultivars using candidate gene-based markers suggested that the two loci might be involved in developing reproductive barriers between two subspecies .
| Matching Sentences:
[ Sen. 5, subscore: 2.00 ]: A comparison of the sequences of candidate genes among both parents and HB plants revealed that hwh1 encoded a putative glucose-methanol-choline oxidoreductase with one amino acid change compared to Hwh1 and that hwh2 probably encoded a putative hexose transporter with a six amino acid insertion compared to Hwh2 .
[ Sen. 4, subscore: 1.00 ]: Genetic analysis revealed that HB was controlled by the complementary action of two recessive genes , hwh1 and hwh2 , originating from each of both parents , which were fine-mapped on the short arm of chromosome 2 and on the near centromere region of the long arm of chromosome 11 , respectively .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 1.00 |
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| Title: Fine mapping and candidate gene analysis of hwh1 and hwh2 , a set of complementary genes controlling hybrid breakdown in rice .
| | Author: Jiang W Chu SH Piao R Chin JH Jin YM Lee J Qiao Y Han L Piao Z Koh HJ | | Journal: Theor Appl Genet Citation: V : P : Year: 2008 Type: Publisher | | Literature: oryza Field: title Doc ID: pub18335199 Accession (PMID): 18335199 | | Abstract: Hybrid breakdown ( HB ) , a phenomenon of reduced viability or fertility accompanied with retarded growth in hybrid progenies , often arises in the offspring of intersubspecific hybrids between indica and japonica in rice .
We detected HB plants in F ( 8 ) recombinant inbred lines derived from the cross between an indica variety , Milyang 23 , and a japonica variety , Tong 88-7 .
HB plants showed retarded growth , with fewer tillers and spikelets .
Genetic analysis revealed that HB was controlled by the complementary action of two recessive genes , hwh1 and hwh2 , originating from each of both parents , which were fine-mapped on the short arm of chromosome 2 and on the near centromere region of the long arm of chromosome 11 , respectively .
A comparison of the sequences of candidate genes among both parents and HB plants revealed that hwh1 encoded a putative glucose-methanol-choline oxidoreductase with one amino acid change compared to Hwh1 and that hwh2 probably encoded a putative hexose transporter with a six amino acid insertion compared to Hwh2 .
Investigation of the distribution of these alleles among 54 japonica and indica cultivars using candidate gene-based markers suggested that the two loci might be involved in developing reproductive barriers between two subspecies .
| Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: Fine mapping and candidate gene analysis of hwh1 and hwh2 , a set of complementary genes controlling hybrid breakdown in rice .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
