| 摘要: |
| 对13个美国稻的亲和性研究表明:美国稻与粳稻杂交亲和性较好,F1结实基本正常,但与籼稻的亲和性较差,说明随机所取的所有供试美国水稻品种均为偏粳类型。根据亲和性测验结果,从美国稻中筛选出 Cpslo,Cpslol 7,Calbelle 三个 WCVS,同时也鉴定出籼稻品种光辉稻为 WCV。酯酶同工酶分析结果表明,美国稻中亲和性较好的品种基本上都有7A 酶带,无7A 的品种亲和性都较差。因此,在鉴定美国稻的广亲和性时可采取先用酯酶同工酶淘汰不具7A 的品种然后用籼稻作测验种与其测交的方法。本文对一般 WCV 的筛选提出了先观察后测交的简便方法。讨论了 WCVS 的分级标准。另外还提出了广亲和基因的遗传作用模式假说,即几个位点的广亲和原始基因累加作用假说。 |
| 关键词: 美国稻 广亲和品种(WCVS) 酯酶同工酶 结实率 |
| DOI： |
| 投稿时间：1993-08-06 |
| 基金项目: |
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| Studies on Wide Compitibility and Its Inheritance of American Rice Variety |
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| Abstract: |
| The results showed that the compatibility between American rice variety and Japonica type was much better than that between American variety and Indica type.The former F_1's spikelet fertility was almost normal,indicating that the American varieties were inclined to Japonica type.According to re- sults of spikelet fertility test,3 American varieties(Cpslo,Cpslol7 and Calebelle)and 1 Indica variety (Guanghuidao)were affirmed as wide compatibility varieties(WCVS).Results of Est isozyme bands of 13 American va... |
| Key words: American rice variety wide compatibility wariety esterase isozyme spikelet fertility |
