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chromosome location of the Male-sterility and Yellow Seedling Gene in Line 1066A of Foxtail Millet

Acta Botanica Sinica 2002年第10期44卷 1209-1212页

作者：王润奇高俊华毛丽萍杜瑞恒刁现民孙敬三河北省农林科学院谷子研究所石家庄050031 石家庄市桥东污水治理工程筹建处石家庄050031 中国科学院植物研究所北京100093

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 trisomics 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 (chi(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 (chi(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.

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

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chromosome location, molecular characterization, polymorphisms and expression of G protein-coupled receptor 54 (GPR54) as a candidate gene for puberty in pigs

Chromosome location, molecular characterization, polymorphis...

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湖北省遗传学会、江西省遗传学会2006年学术年会暨学术讨论会

作者： S.-J. LI, J. REN. L.-S. HUANG Key Laboratory for Animal Biotechnology of Jiangxi Province and the Ministry of Agriculture of China, Jiangxi Agricultural University, Nangchang, 330045, P. R. China

G-protein coupled receptor (GPR54) is a member of the rhodopsin family and plays a key role in activating the pulsatile release of hypothalamic gonadotropin-releasing hormone, which is crucial for puberty onset. The aim of this study was to characterize GPR54 and provide a starting point for evaluating the association of the variants in this gene with puberty in pigs. GPR54 was assigned to SSC2q21-24 by radiation hybrid mapping, and the most significantly linked marker is SW395 at a

关键词： GPR54 chromosome location as a candidate gene for puberty in pigs molecular characterization polymorphisms and expression of G protein-coupled receptor 54

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