籼、粳、中间型水稻杂种F_1的生物优势、经济优势与RFLP的关系研究
文献类型: 中文期刊
作者: 钱前;熊振民;闵绍楷;朱立煌
作者机构:
关键词: 水稻;杂种生物优势;经济优势;RFLP
期刊名称:作物学报
ISSN: 0496-3490
年卷期: 1998 年 01 期
页码: 74-77
收录情况: 北大核心 ; CSCD
摘要: 对典型籼、粳稻南京11、金南凤突变体和中间型品种Bellemont相互杂交形成的三种F_1杂种优势及三者之间的RFLP进行了系统分析,结果表明:F_1杂种生物学优势存在着籼/粳>籼/中间型>粳/中间型趋势,经济优势则为籼/中间型>粳/中间型>籼/粳.而多态性是籼/粳(73.3%)>籼/中间型(67.9%)>粳/中间型(32.8%),并且各组合的12条染色体多态性程度也有差异,因此,多态性与生物优势趋于一致,但经济优势却与多态性及亲和性基因有关.
分类号: S511.2
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