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| Jiang,Liangrong; Zheng,Jingsheng; Zhang,Zhiyong; Chen,Xiaolong; Chen,Fangyu; Wang,Tiansheng; Huang,Yumin; Wang,Houcong; Hong,Zonglie; Huang,Rongyu. |
| ABSTRACT Grain shape in rice is a key determinant of grain appearance, yield and market value, and thus has been widely studied. Rice mutant lines with long-grain phenotypes were previously isolated from an M2 population derived from mutagenized mature pollen grains that were treated with gamma-ray irradiation for a cultivar Ma85. To understand the genetic basis underlying the long-grain trait, two mutant lines, JF171 and JF178, were crossed with the short-grain parents JF222 and Samba, generating three F2 populations. Molecular marker-based genetic analysis was employed to detect the major QTLs that affected grain length, grain width, length-to-width ratio and grain weight. Based on the data obtained for the three populations, a joint major QTL for grain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; Grain length; QTL mapping; Marker-assisted breeding. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300452 |
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