2011年9月
Detection of QTLs for grain length from large grain rice (Oryza sativa L.)
BREEDING SCIENCE
- ,
- ,
- ,
- ,
- ,
- ,
- ,
- ,
- 巻
- 61
- 号
- 3
- 開始ページ
- 269
- 終了ページ
- 274
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1270/jsbbs.61.269
- 出版者・発行元
- JAPANESE SOC BREEDING
Grain size is one important trait in the agronomics of rice production. Although several quantitative trait loci (QTLs) controlling the length, width, and thickness of rice grains have been genetically identified, and some have been cloned, the molecular mechanisms of grain size regulation are still unclear. To identify the genetic factors affecting rice grain length, we performed QTL analysis using an F-2 population and F-3 lines derived from a cross between two Otyza saliva L. varieties: the long-grain japonica cultivar 'Cytoto' and the indica variety 'Kasalath'. Three QTLs for grain length were detected, one each on chromosomes 3, 4 and 7. The presence of the Cytoto-type allele at any of the three loci was associated with increased grain length. Analysis of the QTL detected on chromosome 4, designated qGL4b, using F-3 progeny confirmed an allelic difference between 'Cytoto' and 'Kasalath' at qGL4b. The Cytoto allele of qGL4b appears to increase the length and weight of the rice grain.
- リンク情報
- ID情報
-
- DOI : 10.1270/jsbbs.61.269
- ISSN : 1344-7610
- eISSN : 1347-3735
- Web of Science ID : WOS:000296683100007