Similar evolutionary potentials in an obligate ant parasite and its two host species.
Similar evolutionary potentials in an obligate ant parasite and its two host species.
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DOI：
10.1111/j.1420-9101.2010.02223.x
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发表时间：
2011-04
影响因子：
2.1
通讯作者：
Foitzik S
中科院分区：
文献类型：
--
作者：
Pennings PS;Achenbach A;Foitzik S
寄主-寄生虫协同进化的空间结构由相互作用物种的种群结构和遗传多样性决定。我们分析了三个相关蚂蚁物种的群体遗传参数：寄生的奴隶蚂蚁Protomogna us americanus及其两个寄主种Temnothorax Longispinosus和T.curvispinosus。我们对它们整个范围内的蚂蚁进行了采样，在6到8个微卫星座位和一个mtDNA序列上对蚂蚁进行了基因分型，发现所有三个物种都存在高度的遗传变异和强大的种群结构。有趣的是，最丰富的物种和主要寄主--长鞭毛虫，其结构较少，但地方遗传多样性较低。总体而言，物种之间的差异很小，我们得出结论，它们具有相似的进化潜力。因此，这种社会寄生虫与其宿主之间的共同进化相互作用可能较少受到不同进化潜力的影响，而是受到不同选择压力的影响。我们使用了不同的方法来量化和比较物种和遗传标记之间的遗传多样性和结构。我们发现，只要标记和物种之间的突变率相似，Jost D就很适合进行这些比较。如果情况并非如此，例如，当使用线粒体DNA和微卫星研究特定性别的传播时，应使用基于模型的推断，而不是描述性统计(如D或GST)。使用基于融合的方法，我们确实发现雄性比雌性分散得更多，但这种分散的性别偏见在物种之间是不同的。关于遗传多样性和结构的不同方法的结果彼此非常一致。
The spatial structure of host–parasite coevolution is shaped by population structure and genetic diversity of the interacting species. We analysed these population genetic parameters in three related ant species: the parasitic slavemaking ant Protomognathus americanus and its two host species Temnothorax longispinosus and T. curvispinosus. We sampled throughout their range, genotyped ants on six to eight microsatellite loci and an MtDNA sequence and found high levels of genetic variation and strong population structure in all three species. Interestingly, the most abundant species and primary host, T. longispinosus, is characterized by less structure, but lower local genetic diversity. Generally, differences between the species were small, and we conclude that they have similar evolutionary potentials. The coevolutionary interaction between this social parasite and its hosts may therefore be less influenced by divergent evolutionary potentials, but rather by varying selection pressures. We employed different methods to quantify and compare genetic diversity and structure between species and genetic markers. We found that Jost D is well suited for these comparisons, as long as mutation rates between markers and species are similar. If this is not the case, for example, when using MtDNA and microsatellites to study sex-specific dispersal, model-based inference should be used instead of descriptive statistics (such as D or GST). Using coalescent-based methods, we indeed found that males disperse much more than females, but this sex bias in dispersal differed between species. The findings of the different approaches with regard to genetic diversity and structure were in good accordance with each other.
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影响因子：
2.9
作者：
ALLOWAY, TM
通讯作者：
ALLOWAY, TM
影响因子：
1.9
作者：
CHAKRABORTY, R;DEANDRADE, M;BUDOWLE, B
通讯作者：
BUDOWLE, B
影响因子：
3.3
作者：
Foitzik, S;Herbers, JM
通讯作者：
Herbers, JM
DOI：
10.1111/j.1471-8286.2004.00849.x
发表时间：
2005-03-01
期刊：
MOLECULAR ECOLOGY NOTES
影响因子：
--
作者：
Azuma, N;Takahashi, J;Higashi, S
通讯作者：
Higashi, S
DOI：
10.1098/rspb.1995.0065
发表时间：
1995-04-22
影响因子：
4.7
作者：
DYBDAHL, MF;LIVELY, CM
通讯作者：
LIVELY, CM