文献类型： 外文期刊
作者： Wang, Qingbiao 1 ; Wang, Yanping 1 ; Zhang, Li 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing 100097, Peoples R China
2.Key Lab Biol & Genet Improvement Hort Crops North, Beijing 100097, Peoples R China
3.Minist Agr, Beijing, Peoples R China
4.Beijing Key Lab Vegetable Germplasm Improvement, 50 Zhuanghua Rd, Beijing 100097, Peoples R China
关键词： Radish; Flowering time; Major gene and polygene genetic model; Molecular marker
期刊名称：PLANT MOLECULAR BIOLOGY REPORTER （ 影响因子：1.595； 五年影响因子：2.042 ）
ISSN： 0735-9640
年卷期： 2018 年 36 卷 5-6 期
页码：
收录情况： SCI
摘要： The mixed inheritance model involving major genes and polygenes was used to analyze the inheritance of radish flowering time trait in the B-1, B-2, F-1, and F-2 generations. Our results showed that flowering time was regulated by two additive-dominant-epistatic major genes and additive-dominant-epistatic polygenes (E-0 model). The major gene heritability estimated for the B-1, B-2, and F-2 generations was 70.48%, 82.80%, and 86.90%, respectively, while the polygene heritability estimated was 0.00, 12.58%, and 8.19%, respectively. These results suggested that the flowering time of radish was regulated by major genes, with polygenes playing only a minor role. In practice, high heritability of major genes is favorable for an efficient selection of B-2 and F-2 generations during radish breeding. Six hundred twenty-six SSR markers were screened between late-bolting bulk and the early bolting bulk from F-2 population. A marker RSS0119 associated to the flowering time trait was obtained, which revealed a high correlation with the flowering time in the F-2 population as well as in 59 radish inbred lines (83.61% and 61.02%, respectively). Our findings will be useful for breeding late-bolting varieties.
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