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中国科学C辑(英文版) 1998
Inheritance and mapping of embryo sac abortion in hybrid between Indica and Japonica rice (Oryza sativa L.)
Keywords: embryo sac abortion,gametophytic sterllity,genetic mapping,Oryza sativa L,plant reproduction 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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