Genetic diversity and historical population structure in the New Zealand mayfly Acanthophlebia cruentata
Genetic diversity and historical population structure in the New Zealand mayfly Acanthophlebia cruentata
复制标题
新西兰蜉蝣Acanthophlebia cruentata的遗传多样性和历史种群结构
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
K. Collier
中科院分区：
文献类型：
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作者：
Peter J. S. Smith;S. M. McVeagh;K. Collier
摘要1. 280个碱基对区域的细胞色素B基因的核苷酸序列被用来评估遗传多样性，并推断在新西兰蜉蝣cruenophlebia cruentata人口的历史。2.在新西兰北岛中部和北方不同空间尺度的19条溪流中，对种群进行了层次分析，发现了34种单倍型。一个共同的单倍型被发现在所有中部地区的流和独特的单倍型在北方流。几个中心流具有区域特异性单倍型，在70-100公里尺度上具有遗传分化的种群。3.单倍型多样性在大多数位点较高（0.53-0.8），但在一些中心位点较低（0-0.22）。AMOVA分析发现，区域（69%）和集水区（58%）之间存在显着的遗传多样性。大多数人口成对FST检验是显着的，在中部地区和相邻的流之间的网站对网站之间的非显着的成对检验。4.序列分歧的水平被解释为更新世分歧的结果，在多个避难所，导致区域独特的单倍型的演变。在一些中部地区的人口的低多样性可能是由于最近的殖民地后，当地的保护，与火山事件。
SUMMARY 1. Nucleotide sequences of a 280 base pair region of the cytochrome b gene were used to assess genetic diversity and to infer population histories in the New Zealand mayfly Acanthophlebia cruentata. 2. A hierarchial examination of populations from 19 streams at different spatial scales in the central and northern North Island of New Zealand found 34 haplotypes. A common haplotype was found in all central region streams and unique haplotypes in northern streams. Several central streams had region specific haplotypes with genetically differentiated populations at the 70–100 km scale. 3. Haplotype diversity was high (0.53–0.8) at most sites, but low (0–0.22) in some central sites. AMOVA analyses found significant genetic diversity among regions (69%) and among catchments (58%). Most population pairwise FST tests were significant, with nonsignificant pairwise tests among sites in the central region and pairs of sites between neighbouring streams. 4. The levels of sequence divergence are interpreted as the result of Pleistocene divergence in multiple refugia, leading to the evolution of regionally unique haplotypes. The low diversity in some central region populations may result from recent colonisation following local extinctions, associated with volcanic events.
将种群结构与种群历史分离：对虎蝾螈 Ambystoma tigrinum 线粒体 DNA 单倍型地理分布的分支分析。
影响因子：
3.3
作者：
Templeton,AR;Routman,E;Phillips,CA
通讯作者：
Phillips,CA