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Heterozygous alleles restore male fertility to cytoplasmic male-sterile radish (Raphanus sativus L.): a case of overdominance

文献类型： 外文期刊

作者： Wang, Zhi Wei 1 ; Wang, Chuan 1 ; Gao, Lei 1 ; Mei, Shi Yong 3 ; Zhou, Yuan 1 ; Xiang, Chang Ping 4 ; Wang, Ting 1 ;

作者机构： 1.Chinese Acad Sci, CAS Key Lab Plant Germplasm Enhancement & Special, Wuhan Bot Garden, Wuhan 430074, Peoples R China

2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

3.Hubei Acad Agr Sci, Wuhan 430064, Peoples R China

4.Huazhong Agr Univ, Key Lab, Minist Educ Hort Plant Biol, Wuhan 430070, Peoples R China

关键词： Cytoplasmic male sterility;fertility restoration;heterozygous alleles;overdominance;radish

期刊名称：JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：6.992； 五年影响因子：7.86 ）

ISSN： 0022-0957

年卷期： 2013 年 64 卷 7 期

页码：

收录情况： SCI

摘要： The practice of hybridization has greatly contributed to the increase in crop productivity. A major component that exploits heterosis in crops is the cytoplasmic male sterility (CMS)/nucleus-controlled fertility restoration (Rf) system. Through positional cloning, it is shown that heterozygous alleles (RsRf3-1/RsRf3-2) encoding pentatricopeptide repeat (PPR) proteins are responsible for restoring fertility to cytoplasmic male-sterile radish (Raphanus sativus L.). Furthermore, it was found that heterozygous alleles (RsRf3-1/RsRf3-2) show higher expression and RNA polymerase II occupancy in the CMS cytoplasmic background compared with their homozygous alleles (RsRf3-1/RsRf3-1 or RsRf3-2/RsRf3-2). These data provide new insights into the molecular mechanism of fertility restoration to cytoplasmic male-sterile plants and illustrate a case of overdominance.

  • 相关文献

[1]An insertion-deletion at a pentatricopeptide repeat locus linked to fertility transition to cytoplasmic male sterility in radish (Raphanus sativus L.). Wang, Zhi Wei,Wang, Chuan De,Gao, Lei,Zhou, Yuan,Wang, Ting,Wang, Chuan De,Mei, Shi Yong.

[2]A chimeric Rfo gene generated by intergenic recombination cosegregates with the fertility restorer phenotype for cytoplasmic male sterility in radish. Wang, Zhi Wei,Zhang, Li Jun,Chen, Jie,Zhou, Yuan,Wang, Ting,Wang, Zhi Wei,Xiang, Chang Ping,Zhang, Li Jun,Chen, Jie,Mei, Shi Yong. 2010

[3]Development of PCR-based markers linked to a restorer gene for cytoplasmic male sterility in radish (Raphanus sativus L.). Wang, Zhiwei,Xiang, Changping,Mei, Shiyong. 2006

[4]Effect of N Management on Root Yield and N Uptake of Radishes in Southern China. Yuan, Wei-Ling,Deng, Xiao-hui,Gan, Cai-xia,Cui, Lei,Wang, Qing-fang,Yuan, Shang-yong.

[5]Genetic and cytological analysis of a new spontaneous male sterility in radish (Raphanus sativus L.). Wang, Zhi-Wei,Gao, Lei,Zhou, Yuan,Wang, Ting,Wang, Zhi-Wei,Xiang, Chang Ping,Liu, Hai Zhou,Mei, Shi Yong.

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