Phylogeny of Mesoamerican freshwater mussels and a revised tribe‐level classification of the Ambleminae
Phylogeny of Mesoamerican freshwater mussels and a revised tribe‐level classification of the Ambleminae
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中美洲淡水贻贝的系统发育和修订后的 Ambleminae 部落级别分类
DOI：
10.1111/zsc.12322
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发表时间：
2018
影响因子：
2.5
通讯作者：
Page, Lawrence M.
中科院分区：
文献类型：
--
作者：
Pfeiffer, John M.;Atkinson, Carla L.;Sharpe, Ashley E.;Capps, Krista A.;Emery, Kitty F.;Page, Lawrence M.
淡水贻贝亚科Ambleminae的进化和生态假说强烈的地理偏见的结果完全排除中美洲类群的系统发育重建的分支。我们着手整合的一部分中美洲淡水贻贝组合到现有的假设amblemine分类和进化产生的分子生物学，包括4个以前未采样的中美洲属和9个物种特有的该地区。考虑到传统上假设的对新北贻贝的亲和力以及分类应反映共同祖先的理解，我们预测（a）中美洲属将被恢复为Ambleminae公认部落的成员，（B）属将被支持为单系。本文报道的多基因座同源性（COI +28 S +16 S）并不完全支持这两种假设。CyrtonaiasnorPsorula被支持为单系，我们预测其他几个中美洲属也是非单系的。重建的系统发育恢复了中美洲淡水贻贝的四个独立谱系，这些分支分布在Ambleminae的系统发育中，包括Quadrulini（Megalonaias）部落，Lampsilini（两个谱系：Cyrtonaias explicata/Sphenonaias microdon和Pachynaias），以及以前未被承认的，完全由Psoronaias，Psorula和Popenaias组成的中美洲和格兰德河分支。后者的分支具有几个形态特征，区分它从它的姐妹分类群，部落Lampsilini，我们认识到这个新确定的中美洲分支作为第五部落的Ambleminae归因于Popenaiadini听到Guckert，1970年。这个修订的分类更完整地承认了Ambleminae的超属多样性。
Evolutionary and ecological hypotheses of the freshwater mussel subfamily Ambleminae are intensely geographically biased—a consequence of the complete exclusion of Mesoamerican taxa in phylogenetic reconstructions of the clade. We set out to integrate a portion of the Mesoamerican freshwater mussel assemblage into existing hypotheses of amblemine classification and evolution by generating a molecular phylogeny that includes four previously unsampled Mesoamerican genera and nine species endemic to that region. Given the traditionally hypothesized affinity to Nearctic mussels and the understanding that classification should reflect common ancestry, we predicted that (a) Mesoamerican genera would be recovered as members of the recognized tribes of the Ambleminae, and (b) genera would be supported as monophyletic. The mutilocus phylogeny (COI + 28S + 16S) reported herein does not fully support either of those hypotheses. NeitherCyrtonaiasnorPsorulawere supported as monophyletic and we predict several other Mesoamerica genera are also non‐monophyletic. The reconstructed phylogeny recovered four independent lineages of Mesoamerican freshwater mussels and these clades are distributed across the phylogeny of the Ambleminae, including the tribe Quadrulini (Megalonaias), Lampsilini (two lineages:Cyrtonaias explicata/Sphenonaias microdon, andPachynaias), and a previously unrecognized, exclusively Mesoamerican and Rio Grande clade consisting of the generaPsoronaias,PsorulaandPopenaias. The latter clade possesses several morphological characteristics that distinguish it from its sister taxon, tribe Lampsilini, and we recognize this newly identified Mesoamerican clade as a fifth tribe of the Ambleminae attributable to the Popenaiadini Heard & Guckert, 1970. This revised classification more completely recognizes the suprageneric diversity of the Ambleminae.
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DOI：
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发表时间：
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期刊：
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