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
作者： Dong, D. K. 1 ; Li, Z. 2 ; Yuan, F. J. 1 ; Zhu, S. L. 1 ; Chen, P. 3 ; Yu, W. 2 ; Yang, Q. H. 1 ; Fu, X. J. 1 ; Yu, X. M. 1 ; L 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Zhejiang, Peoples R China
2.Fuyang Inst Agr Sci, Fuyang 236031, Anhui, Peoples R China
3.Univ Arkansas, Dept Crop Soil & Environm Sci, Fayetteville, AR 72701 USA
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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