Recalibrated tree of leaf beetles (Chrysomelidae) indicates independent diversification of angiosperms and their insect herbivores.
Recalibrated tree of leaf beetles (Chrysomelidae) indicates independent diversification of angiosperms and their insect herbivores.
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DOI：
10.1371/journal.pone.0000360
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发表时间：
2007-04-11
期刊：
影响因子：
3.7
通讯作者：
Vogler AP
中科院分区：
文献类型：
--
作者：
Gómez-Zurita J;Hunt T;Kopliku F;Vogler AP
的巨大的多样性的“植食类”（象鼻虫，长角甲虫和叶甲虫）已被归因于他们的共同辐射与被子植物的基础上匹配的年龄估计为两个群体，但系统发育信息和分子钟校准仍然不足以得出这一结论。基于线粒体rrnL、核小亚基rRNA和大亚基rRNA 3个3000 bp以上的部分核糖体基因标记，对叶甲科167个类群进行了系统发育分析。分子钟校准和置信区间的基础上，古生物学数据，从最古老的（K-T边界）叶甲化石，古老的喂养痕迹归因于hispoid Cassidinae，和vicariant分裂的新北和古北成员的Timarchini。该科的起源年代为73-79 Mya（置信区间为63-86 Mya），大多数亚科是白垩纪后的，与所有已确认的身体化石的年龄一致。两个主要的单子叶植物喂养chrysomelid谱系形成了广泛分离的分支，这表明独立的殖民古代（早白垩世）被子植物谱系。以前的校准提出了一个更古老的起源的科不支持。因此，chrysomelid甲虫可能辐射后很长一段时间，他们的主机血统的起源和他们的多样化是由重复的辐射驱动的预先存在的不同的资源，而不是古老的主机协会。
The great diversity of the “Phytophaga” (weevils, longhorn beetles and leaf beetles) has been attributed to their co-radiation with the angiosperms based on matching age estimates for both groups, but phylogenetic information and molecular clock calibrations remain insufficient for this conclusion. A phylogenetic analysis of the leaf beetles (Chrysomelidae) was conducted based on three partial ribosomal gene markers (mitochondrial rrnL, nuclear small and large subunit rRNA) including over 3000 bp for 167 taxa representing most major chrysomelid lineages and outgroups. Molecular clock calibrations and confidence intervals were based on paleontological data from the oldest (K-T boundary) leaf beetle fossil, ancient feeding traces ascribed to hispoid Cassidinae, and the vicariant split of Nearctic and Palearctic members of the Timarchini. The origin of the Chrysomelidae was dated to 73–79 Mya (confidence interval 63–86 Mya), and most subfamilies were post-Cretaceous, consistent with the ages of all confirmed body fossils. Two major monocot feeding chrysomelid lineages formed widely separated clades, demonstrating independent colonization of this ancient (early Cretaceous) angiosperm lineage. Previous calibrations proposing a much older origin of Chrysomelidae were not supported. Therefore, chrysomelid beetles likely radiated long after the origin of their host lineages and their diversification was driven by repeated radiaton on a pre-existing diverse resource, rather than ancient host associations.
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DOI：
10.1073/pnas.95.16.9402
发表时间：
1998-08-04
影响因子：
11.1
作者：
Baldwin, BG;Sanderson, MJ
通讯作者：
Sanderson, MJ
影响因子：
10.7
作者：
Gascuel, O
通讯作者：
Gascuel, O
影响因子：
9.2
作者：
Barraclough, TG;Barclay, MVL;Vogler, AP
通讯作者：
Vogler, AP
DOI：
10.1073/pnas.080421597
发表时间：
2000-04-25
影响因子：
11.1
作者：
Bremer, K
通讯作者：
Bremer, K
DOI：
10.1073/pnas.2133013100
发表时间：
2003-10-28
影响因子：
11.1
作者：
Becerra, JX
通讯作者：
Becerra, JX