文献类型： 外文期刊

作者： Wang, RQ ¹ ; Gao, JH ² ; Mao, LP ² ; Du, RH ² ; Diao, XM ² ; Sun, JS ² ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Millet Crops, Shijiazhuang 050031, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Millet Crops, Shijiazhuang 050031, Peoples R China; Shijiazhuang Qiaodong Wastewater Treatment Projec, Dept Preparat, Shijiazhuang 050031, Peoples R China; Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China

关键词： setaria italica;male-sterile;yellow seedling;primary trisomic analysis;chromosome location

期刊名称：ACTA BOTANICA SINICA （ 影响因子：0.599； ）

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收录情况： SCI

摘要： Using foxtail millet (Setaria italica (L.) Beauv.) male-sterile line 1066A as female parent and Yugu 1 primary trisomic series (1-7) and tetrasomics 8, 9 as male parents, chromosome location of gene for male-sterility and yellow seedling in line 1066A was studied by primary trisomic analysis. The plants of F_1 generation of trisomics 2-9 were obtained by crossing with a great many plants of 1066A. F_1 generation of tri-somics was similar to their male parent in morphologic characters, the color of their seedling was green, and pollen was partially fertile. The segregation ratio of fertility to sterility is 3:1 in F_2 generation of trisomics 2, 3, 4, 5, 7, 8 and 9; and 14:1 only in F_2 generation of trisomic 6 (χ_(0.05)~2 = 0.012). The segregation ratio of green seedling to yellow seedling is 12:1 only in F_2 generation of trisomic 7 (χ_(0.05)~2 = 0.31), but in other cases, this ratio is 3:1. The results indicated that the male-sterility gene was located on chromosome 6, and the gene for yellow seedling was monogenic recessive and located on chromosome 7. The rate of trisomics transmission by pollen was tested, trisomics 8 and 9 were the highest in rates of trisomics transmission and followed by trisomics 6 and 4.