The age and phylogeny of wood boring weevils and the origin of subsociality
The age and phylogeny of wood boring weevils and the origin of subsociality
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DOI：
10.1016/j.ympev.2011.03.016
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发表时间：
2011-06-01
影响因子：
4.1
通讯作者：
Cognato, Anthony I.
中科院分区：
文献类型：
--
作者：
Jordal, Bjarte H.;Sequeira, Andrea S.;Cognato, Anthony I.
超多样性象鼻虫中有很大一部分是蛀木象鼻虫，其中许多类群具有亚社会科结构。某些钻孔象鼻虫类群的起源和关系一直是一个有待解决的问题，不同的研究对其系统发育的假设也有很大的变化。我们的目的是测试最突出的木材钻孔分类群，包括一系列草食性或木材钻孔习惯的象鼻虫外群的系统发育位置和单一性。本研究首次对许多被认为具有整合性的类群进行了广泛的系统发育分析，如Schedlarius、Mecopelmus、Coptonotus、Dactylipalpus、Coptocorynus及其亲缘Araucariini类群、Dobionus、Psepholax、Amorphocerus-Porthetes以及一些具有树皮甲虫行为的特有木孔Conoderini。数据分析基于128个形态学特征、28S D2-D3片段的rDNA核苷酸以及编码CAD、ArgK、EF-1 α和COI基因片段的蛋白质的核苷酸和氨基酸。尽管在不同的数据集和分析中，某些类群的结果有所不同，但人们可以从本研究中得出以下结论：与Coptonotus关系最密切的是Scolytinae和Platypodinae的姐妹谱系；松香科属单系（包括松香科），与松香科有较远的亲缘关系；Amorphocerini不是Cossoninae的一部分，而phpholax可能属于Cryptorhynchini。亚社会性祖先状态重建的似然估计保守估计有5 - 6个起源。总的来说，系统发育结果很大程度上依赖于形态学数据，我们认为必须取样更多的遗传位点来提高系统发育分辨率。然而，一些结果，如斯科琴科的衍生位置，在形态学和分子数据之间是一致的。利用最近更新的Scolytinae化石时代（100 Ma）对Curculionidae和各亚科群的起源进行了修正的时间估计，这对节点年龄的估计有重大影响。(C) 2011爱思唯尔公司版权所有。
A large proportion of the hyperdiverse weevils are wood boring and many of these taxa have subsocial family structures. The origin and relationship between certain wood boring weevil taxa has been problematic to solve and hypotheses on their phylogenies change substantially between different studies. We aimed at testing the phylogenetic position and monophyly of the most prominent wood boring taxa Scolytinae, Platypodinae and Cossoninae, including a range of weevil outgroups with either the herbivorous or wood boring habit. Many putatively intergrading taxa were included in a broad phylogenetic analysis for the first time in this study, such as Schedlarius, Mecopelmus, Coptonotus, Dactylipalpus, Coptocorynus and allied Araucariini taxa, Dobionus, Psepholax, Amorphocerus-Porthetes, and some peculiar wood boring Conoderini with bark beetle behaviour. Data analyses were based on 128 morphological characters, rDNA nucleotides from the D2-D3 segment of 28S, and nucleotides and amino acids from the protein encoding gene fragments of CAD, ArgK, EF-1 alpha and COI. Although the results varied for some of the groups between various data sets and analyses, one may conclude the following from this study: Scolytinae and Platypodinae are likely sister lineages most closely related to Coptonotus; Cossoninae is monophyletic (including Araucariini) and more distantly related to Scolytinae; Amorphocerini is not part of Cossoninae and Psepholax may belong to Cryptorhynchini. Likelihood estimation of ancestral state reconstruction of subsociality indicated five or six origins as a conservative estimate. Overall the phylogenetic results were quite dependent on morphological data and we conclude that more genetic loci must be sampled to improve phylogenetic resolution. However, some results such as the derived position of Scolytinae were consistent between morphological and molecular data. A revised time estimation of the origin of Curculionidae and various subfamily groups were made using the recently updated fossil age of Scolytinae (100 Ma), which had a significant influence on node age estimates. (C) 2011 Elsevier Inc. All rights reserved.