Inheritance and mapping of embryo sac abortion in hybrid between Indica and Japonica rice (Oryza sativa L.) |
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| Authors: | LIU YongshengZHU LihuangSUN JingsanSHEN LishuangWANG YuzhongHE PingLU ChaofuCHEN Ying |
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| Affiliation: | (1) Institute of Genetics, Chinese Academy of Sciences, 100101 Beijing, China;(2) Institute of Botany, Chinese Academy at Sciences, 100093 Beijing, China |
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| Abstract: | A doubled haploid (DH) population derived from anther culture of F1’s between an Indica var. Zhai-Ye-Qing 8 and a Japonica var. Jing-Xi17 as well as two backcross populations derived from this DH population were used to investigate inheritance of the embryo sac abortion at early megagametogenesis occurring in Indica/Japonica rice crosses. Two major loci, dominant and complementaryesa-1 andesa-2, located on chromosomes 6 and 12 respectively, were detected. Genetic analysis indicated that embryo sac fertility is mainly regulated by the gametophytic genotype at these two loci. |
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| Keywords: | embryo sac abortion gametophytic sterllity genetic mapping Oryza sativa L. plant reproduction |
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