摘要
利用ＲＦＬＰ标记对秋稻品种 Ｄｕｌａｒ的三交（南京１１／／Ｄｕｌａｒ／２５３３）的Ｆ２群体与籼粳品种的测交Ｆ１进行了单株带型鉴定，并对广亲和性的表达进行分析。结果表明：与第６染色体上标记ＲＧ２１３连锁的广亲和基因Ｓｎ５效应较大；不同位点广亲和基因具有明显的累加效应；位点内的互作导致了粳型配子的部分败育，同时还存在位点间的互作。
RFLP markers were employed to test whether the individuals possess wide compatibility genes (WCGs) in the progenies of Dular, which is one of the typical wide compatibility varieties in ecotype Aus rice. Meanwhile the characteristics of WCGs were also analysed. The results are shown as follows: (1) the effect of WCG at S-5 locus is better than the others, (2) the combination of different wide compatibility loci is obviously effective in increasing the spikelet fertility, (3) intraallelic interaction can cause japonica macrospore abortive, while interallelic interaction has some effects in fertility expression.
基金
国家863计划项目(编号: BH-01-02-01)
国家重大基础研究发展规划项目(G199901 1606)&&
