干旱区生态环境知识资源中心(Arid): 大石鸡边缘种群的遗传结构

Arid

	大石鸡边缘种群的遗传结构
其他题名	Genetic structure of Edge population in przewalskl’s rock partridge (Alectoris magna)
	侯鹏; 卫明; 张立勋; 刘廼发
来源期刊	动物学报
ISSN	0001-7302
出版年	2002
卷号	48 期号:3 页码:333-338
中文摘要	大石鸡（Alectoris magna）分布于青海西部、东部，甘肃中部和宁夏西部的干部和半干旱区，由于环境变化，其种群向甘肃南部森林被砍伐的地区扩散，形成涟缘种群。本研究采用聚合酶链式反应（PCR）和直接测序的方法获得了采自甘肃的大石鸡一个边缘种群和两个中心地理种群共39个个体的线粒体DNA（mtDNA）控制区基因（D－loop）456－457个核苷酸的基因序列，16个变异位点（占整个序列的3.5）有15个单倍型。边缘扩散种群有3种单倍型，M6与另两个种群共有，单倍型频率为0.108,而M4和M5为其特有，单倍型频率分别为0.081和0.027。边缘种群的单倍型比率和遗传多样性分别为37.5和0.549。中心地理种群1和种群2各有7个单倍型，除M6炳种群共有，其余为自所特有，单倍型比率分别为46.7和50.0，遗传多样性分别是0.729和0.786。边缘种群的单倍型比率和遗传多样性均低于中心地理种群。
英文摘要	Aiectoris magna is endemic to China, which distributes in arid region and semi-arid zone from western Qinghai, central Gansu to western Ningxia Huizu Autonomous Region. Because of the environmental changes, some populations of A. magna have expanded their range to regions of recent deforestation by humans in southern Gansu, and have colonized to form new edge populations. In this paper the hypervariable domain I of the mtDNA control-region (D-loop) from A . magna populations in edge and central region was studied. In 39 A . magna samples and five A. chukar outgroups, the entire mtDNA D-loop was PCR-amplified. The 456 -457 nucleotides of the DNA D-loop domain I have been sequenced by dideoxy chain-termination method. The 16 variable sites (3.5% of the entire sequence) defined 15 haplotypes. The edge dispersal population has three haplotypes, and shared M6 with other two populations. Its haplotype frequency was 0.108 in the edge dispersal population. M4 and M5 were only found in the edge dispersal population, their frequencies were 0.081. and 0.027 respectively. The population 1 and population 2 of the central population each had 7 haplotypes, sharing M6. The proportion of haplotype and genetic diversity were 37.5% and 0.594 respectively in the edge dispersal population. In the population 1 and population 2 the proportions of haplotype were 46.7 % and 50.0% respectively and the genetic diversity separately 0.729 and 0.786. This result suggested that the edge dispersal population had lower proportions of haplotype and genetic diversity than the two central geographical populations (population 1 and 2).
中文关键词	大石鸡 ; 边缘种群 ; 遗传结构 ; 线粒体DNA ; 遗传多样性 ; 中心地理种群
英文关键词	przwalski’s rock partridge(Alectoris magna) Edge dispersal population genetic structure mitochondrial DNA(mtDNA) genetic diversity central geographical population
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:1222166
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203135
作者单位	兰州大学生命科学学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	侯鹏,卫明,张立勋,等. 大石鸡边缘种群的遗传结构[J]. 兰州大学,2002,48(3):333-338.
APA	侯鹏,卫明,张立勋,&刘廼发.(2002).大石鸡边缘种群的遗传结构.动物学报,48(3),333-338.
MLA	侯鹏,et al."大石鸡边缘种群的遗传结构".动物学报 48.3(2002):333-338.