Mapping one of the 2 genes controlling lemon ray flower color in sunflower (Helianthus annuus L.)

文献类型： 外文期刊

第一作者： Yue, Bing

作者： Yue, Bing;Vick, Brady A.;Hu, Jinguo;Yue, Bing;Yuan, Wenge

作者机构：

期刊名称：JOURNAL OF HEREDITY （ 影响因子：2.645； 五年影响因子：3.069 ）

ISSN： 0022-1503

年卷期： 2008 年 99 卷 5 期

页码：

收录情况： SCI

摘要： In an F(2) population of 120 plants derived from a cross between 2 breeding lines with yellow ray flowers, we observed 111 plants with yellow-colored and 9 plants with lemon-colored ray flowers. The segregation pattern fits a 15:1 (chi(2)((15:1)) = 0.32, P > 0.5) ratio, suggesting that the lemon ray flower color is conditioned by 2 independent recessive genes that had been contributed individually by each of the parents. We sampled 111 plants from the 3 F2: 3 families displaying a 3 to 1 segregating ratio for genotyping with molecular markers. One of the genes, Yf(1), was mapped onto linkage group 11 of the public sunflower map. A targeted region amplified polymorphism marker (B26P17Trap13-68) had a genetic distance of 1.5 cM to Yf(1), and one simple sequence repeat marker (ORS733) and one expressed sequence tag ( EST)-based marker (HT167) previously mapped to linkage group 11 were linked to Yf1 with distances of 9.9 and 2.3 cM, respectively.

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