Lack of concordance between mtDNA gene flow and population density fluctuations in the bank vole
Lack of concordance between mtDNA gene flow and population density fluctuations in the bank vole
复制标题
银行田鼠 mtDNA 基因流与种群密度波动之间缺乏一致性
作者：
J. E. Stacy;P. E. Jorde;Harald Steen;Rolf A. Ims;A. Purvis;K. Jakobsen
通过线粒体DNA（mtDNA）序列分析，确定了灰腹田鼠种群的遗传结构，并与前人关于种群密度波动的地理同步性的研究结果进行了比较。从挪威东南部沿着256 km样带的31个均匀分布的采样点中，共发现了39种不同的mtDNA单倍型，单倍型的地理分布具有显著的非随机性，单倍型之间进化关系的分支分析表明，后代类型通常局限于单一地点，而祖先类型在地理上分布更广。mtDNA单倍型的这种地理分布模式强烈表明，雌性扩散的范围和数量受到严重限制，不足以解释先前观察到的种群密度波动的同步性。我们的结论是，在这个物种的地理同步性必须是由外部的当地人口的因素，如例如移动的捕食者。
The genetic structure of bank voles Clethrionomys glareolus was determined from analyses of mitochondrial DNA (mtDNA) sequences, and compared with previous data on geographical synchrony in population density fluctuations. From 31 sample sites evenly spaced out along a 256‐km transect in SE Norway a total of 39 distinct mtDNA haplotypes were found. The geographical distribution of the haplotypes was significantly nonrandom, and a cladistic analysis of the evolutionary relationship among haplotypes shows that descendant types were typically limited to a single site, whereas the ancestral types were more widely distributed geographically. This geographical distribution pattern of mtDNA haplotypes strongly indicates that the range and amount of female dispersal is severely restricted and insufficient to account for the previously observed synchrony in population density fluctuations. We conclude that geographical synchrony in this species must be caused by factors that are external to the local population, such as e.g. mobile predators.
影响因子：
3.3
作者：
Alan R. Templeton;K. Crandall;C. Sing
通讯作者：
Alan R. Templeton;K. Crandall;C. Sing
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
对表型关联与从限制性内切核酸酶作图推断的单倍型进行分支分析。
影响因子：
3.3
作者：
Templeton,AR;Sing,CF
通讯作者：
Sing,CF