| 家鹅细胞色素b基因系统发育研究 |
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| 引用本文： | 陈艳荣,王继文.家鹅细胞色素b基因系统发育研究[J].中国家禽,2005,9(Z1):39-43. |
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| 作者姓名： | 陈艳荣 王继文 |
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| 作者单位： | 1. 四川农业大学动物科技学院,四川,雅安,625014;黄山学院生命科学系,安徽,黄山,254021
2. 四川农业大学动物科技学院,四川,雅安,625014 |
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| 基金项目： | 农业科技成果转化基金资助(编号:02EFN215100520) |
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| 摘 要： | 本研究测定了中国家鹅15个品种、欧洲鹅2个品种共44个个体的细胞色素b基因全序列(1143 bp),与Genbank库中白额雁细胞色素b基因序列合并进行比对分析,结果表明各序列同义替换速率(dS)和非同义替换速率(dN)分别为0.0787和0.0011,dS与dN值间的差异极显著(Z=4.713,P＜0.01),dS＜0.5,可使用dS值来构建分子系统发育关系树,构建的最大简约树与邻接树拓扑结构一致,支持中国家鹅的双起源学说,即除伊犁鹅外的其它中国鹅品种起源于鸿雁,伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁.
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| 关 键 词： | 家鹅 细胞色素b 系统发育 |
| 修稿时间： | 2005年5月17日 |
Study on Cytochrome b Evolution in Domestic Goose |
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| Cheng Yanrong,Wang Jiwen.Study on Cytochrome b Evolution in Domestic Goose[J].China Poultry,2005,9(Z1):39-43. |
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| Authors: | Cheng Yanrong Wang Jiwen |
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| Abstract: | Mitochondrial cytochrome b(Cyt-b) sequence were used to study the molecular evolution of Anser cygnoides (15 breed of Chinese goose),Anser anser(2 breed of domestic European goose) and Anser albifrons(the lesser white-fronted goose, Genbank accession number AF363031), insertion/deletion or frameshift mutation were not found in Cyt -b gene sequences (1143bp),the average rates of synonymous (dS) and nonsynonymous substitution (dN) were 0.0787 and 0.0011 respectively .there was a significant difference between dS and dN (Z=4.713,P<0.01).Because dS<0.5,it was used to constructe the phylogenetic tree.The phylogenetic trees supported the view of the double origin of Chinese goose, which meaned that domestic Chinese goose (excluding Yili) was derived from Anser cygnoides and domestic European goose(Landoise,Rhin), and Yili was derived from Anser anser. |
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| Keywords: | domestic goose cytochrome b phylogenetic development |
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