研究报告

粳稻野败型细胞质雄性不育恢复系SWR78的恢复基因定位

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  • 扬州大学 江苏省作物遗传生理重点实验室/教育部植物功能基因组学重点实验室, 江苏 扬州 225009; *通讯联系人, E-mail: sztang@yzu.edu.cn

收稿日期: 1900-01-01

  修回日期: 1900-01-01

  网络出版日期: 2009-07-10

Mapping of FertilityRestoring Gene for WildAbortive Type Cytoplasmic Male Sterility in a japonica Rice Restorer Line SWR78

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  • Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics, Ministry of Education, Yangzhou University, Yangzhou 225009, China; *Corresponding author, E-mail:<A href=

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2009-07-10

摘要

利用野败(WA)型粳稻广亲和不育系苏秋A和广亲和广谱型恢复系SWR78配组,根据F2与BC1F1群体的育性分离情况,初步推测WA型苏秋A的育性恢复至少由3对基因控制。选取F2群体中无染色花粉植株,采用隐性基因组分析法进行恢复基因定位,将其中1个主效基因Rf4定位于第10染色体长臂上,与标记RM5629、RM5373、STS1017和STS1018分别相距0.17、0.03、0.03和0.07 cM。Rf4位于标记RM5373与STS1017之间,两标记间的物理距离为78 kb。

本文引用格式

张宏根,朱正斌,李 波,刘 超,汤述翥,梁国华,顾铭洪 . 粳稻野败型细胞质雄性不育恢复系SWR78的恢复基因定位[J]. 中国水稻科学, 2009 , 23(4) : 377 -382 . DOI: 10.3969/j.issn.1001-7216.2009.04.07

Abstract

According to the fertility segregation of F2 and BC1F1 populations derived from a cross between Suqiu A with wildabortive type cytoplasmic male sterility (CMS) and SWR78(a japonical rice restorer line), it could be presumed that the fertility restoration of this cross was controlled by three genes. Then, individuals with absolutely abortive pollen of F2 population were used to map the fertilityrestoring gene. The Rf4 gene was mapped on the long arm of chromosome 10 flanked by the markers RM5629, RM5373, STS1017 and STS1018 at the distances of 0.17, 0.03, 0.03 and 0.07 cM, respectively. The Rf4 gene was localized between RM5373 and STS1017, and the physical distance of the interval between the two markers was about 78 kb.

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