Score: 6.00 |
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| Title: A putative lipase gene EXTRA GLUME1 regulates both empty-glume fate and spikelet development in rice .
| | Author: Li H Xue D Gao Z Yan M Xu W Xing Z Huang D Qian Q Xue Y | | Journal: Plant J Citation: V : 57 P : 593-605 Year: 2009 Type: MEDLINE | | Literature: oryza Field: abstract Doc ID: pub18980657 Accession (PMID): 18980657 | | Abstract: Recent studies have shown that molecular control of inner floral organ identity appears to be largely conserved between monocots and dicots , but little is known regarding the molecular mechanism underlying development of the monocot outer floral organ , a unique floral structure in grasses .
In this study , we report the cloning of the rice EXTRA GLUME1 ( EG1 ) gene , a putative lipase gene that specifies empty-glume fate and floral meristem determinacy .
In addition to affecting the identity and number of empty glumes , mutations in EG1 caused ectopic floral organs to be formed at each organ whorl or in extra ectopic whorls .
Iterative glume-like structures or new floral organ primordia were formed in the presumptive region of the carpel , resulting in an indeterminate floral meristem .
EG1 is expressed strongly in inflorescence primordia and weakly in developing floral primordia .
We also found that the floral meristem and organ identity gene OsLHS1 showed altered expression with respect to both pattern and levels in the eg1 mutant , and is probably responsible for the pleiotropic floral defects in eg1 .
As a putative class III lipase that functionally differs from any known plant lipase , EG1 reveals a novel pathway that regulates rice empty-glume fate and spikelet development .
| Matching Sentences:
[ Sen. 6, subscore: 2.00 ]: We also found that the floral meristem and organ identity gene OsLHS1 showed altered expression with respect to both pattern and levels in the eg1 mutant , and is probably responsible for the pleiotropic floral defects in eg1 .
[ Sen. 2, subscore: 1.00 ]: In this study , we report the cloning of the rice EXTRA GLUME1 ( EG1 ) gene , a putative lipase gene that specifies empty-glume fate and floral meristem determinacy .
[ Sen. 3, subscore: 1.00 ]: In addition to affecting the identity and number of empty glumes , mutations in EG1 caused ectopic floral organs to be formed at each organ whorl or in extra ectopic whorls .
[ Sen. 5, subscore: 1.00 ]: EG1 is expressed strongly in inflorescence primordia and weakly in developing floral primordia .
[ Sen. 7, subscore: 1.00 ]: As a putative class III lipase that functionally differs from any known plant lipase , EG1 reveals a novel pathway that regulates rice empty-glume fate and spikelet development .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 2.00 |
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| Title: Distinction by sequence analysis between cdc2 protein kinases involved in cell cycle control and closely related proteins .
| | Author: Guerrucci MA Goujon P BellER .
| | Journal: Protein Seq .
Data Anal Citation: V : 4 ( 6 ) P : 337-40 Year: 1991 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub1812488 Accession (PMID): 1812488 | | Abstract: Cdc2 proteins are well characterized as protein kinases and are functionally involved in the control of the G2 to M transition during cell division . cdc2 proteins ( cdc2Sp , CDC28 and CDC2Gg ) and proteins sharing a high degree of similarity with cdc2 proteins ( EG1 and DM2C ) , and therefore belonging to the same structural family , were analyzed using Fourier transform of the coded sequences .
Characteristic code/frequency pairs ( 0 . 140 , 0 . 148 and 0 . 238 ) distinguish the cdc2 proteins from the related proteins .
The frequencies 0 . 140 , 0 . 148 and 0 . 238 ( and the associated codes ) allow discrimination between all cdc2 proteins ( cdc2Sp , CDC28 , CDC2Gg , CDC2Hs , CDC2Mm , CDC2Dm , CDC2Ms ) and related proteins ( EG1 , DM2C , MO15 , GTA , PHO85 , KSS1 , PSKJ3 , FUS3 , KIN28 ) , thus providing the first evidence for predicting cdc2 function from a sequence .
A rice cdc2 homolog ( R2 ) did not match the cdc2 proteins and is , therefore , unlikely to be a cdc2 protein .
Pertinent patterns in the cdc2 proteins were searched , and mapped to the 90-210 region ( numbering from cdc2 of S pombe ) which correlates well with the putative cyclin binding domain of the cdc2 proteins .
| Matching Sentences:
[ Sen. 1, subscore: 1.00 ]: Cdc2 proteins are well characterized as protein kinases and are functionally involved in the control of the G2 to M transition during cell division . cdc2 proteins ( cdc2Sp , CDC28 and CDC2Gg ) and proteins sharing a high degree of similarity with cdc2 proteins ( EG1 and DM2C ) , and therefore belonging to the same structural family , were analyzed using Fourier transform of the coded sequences .
[ Sen. 3, subscore: 1.00 ]: The frequencies 0 . 140 , 0 . 148 and 0 . 238 ( and the associated codes ) allow discrimination between all cdc2 proteins ( cdc2Sp , CDC28 , CDC2Gg , CDC2Hs , CDC2Mm , CDC2Dm , CDC2Ms ) and related proteins ( EG1 , DM2C , MO15 , GTA , PHO85 , KSS1 , PSKJ3 , FUS3 , KIN28 ) , thus providing the first evidence for predicting cdc2 function from a sequence .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
