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| Jiang,Liangrong; Zhu,Zhenzhong; Huang,Rongyu; Huang,Yumin; Wang,Houcong; Zheng,Jingsheng; Fang,Xunjun. |
| ABSTRACT Some outer floral organs are unique in gramineous plants, like the sterile lemma and rudimentary glume in rice. However, their development mechanisms are still poorly understood. In this study, we used 4 mutants with long sterile lemma (LSL), named JF11, JF12, JF13 and JNY-7, to be crossed with Aijiaonante (AJNT) and Nipponbare (NIP), respectively. Genetic analysis indicated that LSL trait exhibited recessive heredity and was controlled by a common allele named sl-1(t). Using the method of bulk segregant analysis and linkage analysis between SSR markers and LSL trait based on F2 populations, the sl-1(t) gene was located at the interval between RM20903 and RM20948 on chromosome 7. The interval harbors a known G1 gene, which regulates the sterile... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; Gene mapping; ALOG domain. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200229 |
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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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