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

文献类型: 外文期刊

作者: Yue, Bing 1 ; Vick, Brady A. 2 ; Yuan, Wenge 4 ; Hu, Jinguo 2 ;

作者机构: 1.N Dakota State Univ, Dept Plant Sci, Fargo, ND 58105 USA

2.USDA ARS, No Crop Sci Lab, Fargo, ND 58105 USA

3.Hubei Acad Agr Sci, Wuhan 430064, Peoples R China

4.Langfang Acad Agr & Forestry Sci, Langfang 065000, Peoples R China

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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