| 基于F-2群体的藏鸡羽色、胫色性状的遗传分析 |
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| 引用本文： | 王存芳,李宁,吴常信.基于F-2群体的藏鸡羽色、胫色性状的遗传分析[J].遗传,2006,28(7):810-814. |
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| 作者姓名： | 王存芳 李宁 吴常信 |
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| 作者单位： | 1.中国农业大学动物科技学院，北京 100094；2. 山东轻工业学院食品与生物工程技术学院，济南 250100；3. 中国农业大学农业生物技术国家重点实验室，北京 100094 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 采用白来航、寿光鸡分别与藏鸡进行正反交交配，F1代进行自群交配产生F2群体，观察F1和F2代中羽色、胫色的表现和分离比例。结果表明，白来航鸡的白羽和寿光鸡的黑羽对藏鸡麻羽的遗传方式是完全显性遗传；麻羽是由两个或两个以上的等位基因决定的，只有同时存在这两个或两个以上的等位基因，才可能表现出麻羽来；决定胫色性状的Id/id基因为伴性遗传，隐性基因id在纯合子时有个逐步表达的过程；本研究证实了所用白来航公鸡胫色性状的基因型为显性纯合子。
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| 关 键 词： | 藏鸡×白来航 藏鸡×寿光鸡 羽色 资源家系 胫色 |
| 文章编号： | 0253-9772(2006)07-0810-05 |
| 收稿时间： | 2005-12-29 |
| 修稿时间： | 2005年12月29 |
Genetic Analysis of Feather Color and Shank Color Trait Based on F-2 Resource Population in Tibetan Chicken |
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| WANG Cun-Fang,LI Ning,WU Chang-Xin.Genetic Analysis of Feather Color and Shank Color Trait Based on F-2 Resource Population in Tibetan Chicken[J].Hereditas,2006,28(7):810-814. |
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| Authors: | WANG Cun-Fang LI Ning WU Chang-Xin |
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| Institution: | (1. College of Animal Science and Technology, China Agricultural University, Beijing 100094, China; 2.College of Food and Biologic Engineering, Shandong Institute of Light Industry, Jinan 250100, China; 3.State Key Laboratories for Agro Biotechnology, China Agricultural University, Beijing 100094, China) |
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| Abstract: | Tibetan chickens were crossed reciprocally with White Leghorn and Shou-Guang chicken respectively,and inter se matings in F_1 were carried out to generate the F_2 population.Feather color and shank color appearance and segregation ratio in F_1 and F_2 were observed.Results indicate that white feather of White Leghorn chicken and black feather of Shouguang chicken exhibit complete dominant heredity to hemp feather of Tibetan chicken.Hemp feather is determined by two or more alleles.Only when these two or more alleles are concurrently present,will hemp feather then be displayed.The Id/id allele that determines shank color demonstrates sex-linked inheritance,and the recessive id is expressed gradually in the homozygotes.We confirm that genotype of shank color in White Leghorn rooster used in this study is the dominant homozygote. |
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