| 秋稻品种Aus373广亲和基因的RFLP分析 |
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| 引用本文： | 陆驹飞,严长杰,朱立煌,顾铭洪.秋稻品种Aus373广亲和基因的RFLP分析[J].扬州大学学报(农业与生命科学版),1997(4). |
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| 作者姓名： | 陆驹飞 严长杰 朱立煌 顾铭洪 |
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| 作者单位： | 江苏农学院农学系，中国科学院遗传研究所 |
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| 基金项目： | 国家高新技术发展研究计划资助 |
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| 摘 要： | 利用Ａｕｓ３７３／ＩＲ３６／／Ｂａｌｉｌａ和Ａｕｓ３７３／ＩＲ３６／／秋光２个三交Ｆ１群体对秋稻品种Ａｕｓ３７３的广亲和性进行了遗传分析，发现这两个群体内不同个体的小穗育性有着明显的分离，呈单峰连续分布。小穗育性的高低与稃尖色之间存在连锁关系。用Ａｕｓ３７３／ＩＲ３６／／Ｂａｌｉｌａ群体构建第６染色体的ＲＦＬＰ框架图，并对亲和性基因进行了定位。在第６染色体上发现有２个来自Ａｕｓ３７３区段对小穗育性有直接贡献，其联合效应可以解释总变异的３８．４％。其中位于Ｇ２００和Ｃ基因之间的可能就是Ｓｎ５，位于Ｇ１２２和Ｇ３２９之间的可能是另一个亲和性基因。
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| 关 键 词： | 水稻 基因＋定位／RFLP分析 广亲和性 |
RFLP ANALYSIS ON WIDE COMPATIBILITY GENES IN AUS373 OF ECOTYPE AUS OF RICE |
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| Abstract: | Genetic analysis on the wide compatibility in Aus373 of Ecotype Aus of Rice was conducted based on triple crosses of Aus373 /IR36//Balilla and Aus373/IR36// Akihikari The distribution of spikelet fertility in the two populations was continous unimodal The spikelet fertility was correlated with apiculus color An RFLP linkage map of chromosome 6 including 13 loci was constructed with triple cross of Aus373/IR36//Balilla Two loci associated with wide compatibility on chromosome 6 were identified by interval mapping approach The one was located between chromogene(C) and molecular marker G200 and the other between G122 and G329, which were responsible for 19 89% and 13 64% of phynotypic variation respectively and for 38 4% combinatively The results indicate that there are two wide compatibility genes on chromosome 6 in Aus373 The one between C and G200 is S n 5, the other is temporarily designated as S n x |
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| Keywords: | paddy gene positioning/RFLP analysis wide compatibility |
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