Inheritance and fine mapping of a restorer-of-fertility (Rf) gene for the cytoplasmic male sterility in soybean
文献类型: 外文期刊
第一作者: Dong, D. K.
作者: Dong, D. K.;Yuan, F. J.;Zhu, S. L.;Yang, Q. H.;Fu, X. J.;Yu, X. M.;Li, B. Q.;Zhu, D. H.;Li, Z.;Yu, W.;Chen, P.
作者机构:
关键词: Glycine max;Cytoplasmic male sterility;Restorer-of-fertility;Genetic mapping
期刊名称:PLANT SCIENCE ( 影响因子:4.729; 五年影响因子:5.132 )
ISSN: 0168-9452
年卷期: 2012 年 188 卷
页码:
收录情况: SCI
摘要: The cytoplasmic male sterility (CMS) line FuCMS5A and its restorer line FuHui9 were crossed to produce a segregating F-2 population for pollen fertility assay and the genetic mapping of restorer-of-fertility (Rf) gene. Results showed that the individual F-2 plants were fertile or semi-fertile based on their pollen fertility characteristics. The average ratios of viable pollen were 96.90% and 50.00% for each class of individuals. The segregation of F-2 plants showed a good fit to a 1:1 ratio, which reflects a typical heredity pattern of gametophytic CMS with fertility restorer being controlled by a single dominant gene. Using bulk segregation analysis (BSA) and genetic mapping, the Rf gene was mapped on molecular linkage group J (chromosome 16), between the simple sequence repeat (SSR) makers BARCSOYSSR-16-1064 and BARCSOYSSR-16-1082 with the distances of 0.59 and 0.83 cM, respectively. Four SSR markers (BARCSOYSSR-16-1070, Sctt011, BARCSOYSSR-16-1076 and BARCSOYSSR-16-1077) were cosegregating with this Rf gene in the mapping population. These makers will greatly facilitate the maker assisted selection procedures in CMS breeding programs and it lays a foundation for further map-base cloning of the Rf gene. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
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