Identification of two lineages of host-associated eriophyoid mites predisposed to different levels of host diversification
Identification of two lineages of host-associated eriophyoid mites predisposed to different levels of host diversification
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DOI：
10.1016/j.ympev.2016.09.010
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发表时间：
2016-12-01
影响因子：
4.1
通讯作者：
Hong, Xiao-Yue
中科院分区：
文献类型：
--
作者：
Li, Hao-Sen;Hoffmann, Ary A.;Hong, Xiao-Yue
草食性节肢动物可以多样化的进化变化的结果，以回应他们的植物宿主。目前草食动物的宿主关系模式可能反映了草食动物-植物共同进化的长期进化历史。在这里，我们用分子遗传学跟踪主机的变化和多样化的66 eriophyoid螨（阿卡里，Eriophyoidea）的进化历史，并通过跟踪种群遗传变异的13个eriophyoid螨种喂养不同的裸子植物宿主的进化多样化的模式，最近的分歧模式。这使我们能够探索过去的历史多样化和螨目前的潜力进行主机范围的变化之间的关系。我们发现，28 S rRNA标记测量的裸子植物宿主的种群水平的多样性是更大的物种从螨林间空地辐射整个进化时间利用各种主机，包括被子植物，相比物种从林间空地，一直局限于祖先裸子植物主机。从辐射林间空地的物种表现出较高的变化，主机使用。因此，过去能够辐射并适应不同植物的螨类谱系可能倾向于在新的宿主上继续扩张，尽管需要对其他贫民区进行测试。(C)2016 Elsevier Inc. All rights reserved.
Herbivorous arthropods can diversify as a consequence of evolutionary changes in response to their plant hosts. Current patterns of host association of herbivores are likely to reflect a long evolutionary history of herbivore-plant co-evolution. Here, we used molecular phylogenetics to track the evolutionary history of host shifts and diversification of 66 eriophyoid mites (Acari, Eriophyoidea), and linked past patterns of evolutionary diversification to more recent patterns of divergence by tracking population genetic variation in 13 of the eriophyoid mite species feeding on different gymnosperm hosts. This allowed us to explore the relationship between a past history of diversification and the current potential of mites to undergo host range shifts. We found that population-level diversity across gymnosperm hosts as measured by 28S rRNA markers was greater in species from the mite Glade that had radiated across evolutionary time to utilize a variety of hosts including angiosperms, compared to species from the Glade that has remained restricted to ancestral gymnosperm hosts. Species from the radiated Glade exhibited higher variation in host use. Lineages of mites that have in the past been able to radiate and adapt to diverse plants may therefore be predisposed to continue their expansion on new hosts, although additional Glades need to be tested. (C) 2016 Elsevier Inc. All rights reserved.