Combining Nuclear and Mitochondrial Loci Provides Phylogenetic Information in the Philopterus Complex of Lice (Psocodea: Ischnocera: Philopteridae)

Combining Nuclear and Mitochondrial Loci Provides Phylogenetic Information in the Philopterus Complex of Lice (Psocodea: Ischnocera: Philopteridae)
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结合核和线粒体基因座提供虱子 Philopterus 复合体的系统发育信息(Psocodea:Ischnocera:Philopteridae)

DOI:
10.1093/jme/tjaa166
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发表时间:
2020
影响因子:
2.1
通讯作者:
Johnson, Kevin P
Johnson, Kevin P
中科院分区:
农林科学3区
文献类型:
--
作者:
Najer, Tomas;Papousek, Ivo;Sychra, Oldrich;Sweet, Andrew D;Johnson, Kevin P

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Philopterus Complex包括几个发生在鸟类身上的虱子谱系。该复合体包括Philopterus(Nitzsch,1818; Psocodea:Philopteridae),Philopteroides(Mey,2004; Psocodea:Philopteridae)和许多其他有时被视为独立属的谱系。只有少数研究调查了这一复杂的,所有这些都是基于形态学数据。在这里,我们评估核和线粒体基因座的效用,为恢复这一组内的遗传。我们从39个样本的Philopterus复杂(Psocodea:Philopteridae),使用两个核(hypandTMEDE 6)和一个线粒体(COI)标记的序列获得系统发育树。我们评估了来自这些基因单独以及从串联序列的树。所有树木显示20个明确划分的分类群(即,假定的物种)分为五个支持良好的分支。与预期的一样,COI基因在推定物种之间的序列差异百分比(~5-30%)往往远高于核基因的序列差异百分比(~1-15%)。在描述物种的情况下,基于分子分歧识别的谱系对应于形态学上定义的物种。在某些情况下,物种的主机多面手表现出额外的潜在的遗传变异,这种情况下,需要进一步探讨未来的Philopterus复杂的分类修订。
The Philopterus Complex includes several lineages of lice that occur on birds. The complex includes the generaPhilopterus(Nitzsch, 1818; Psocodea: Philopteridae),Philopteroides(Mey, 2004; Psocodea: Philopteridae), and many other lineages that have sometimes been regarded as separate genera. Only a few studies have investigated the phylogeny of this complex, all of which are based on morphological data. Here we evaluate the utility of nuclear and mitochondrial loci for recovering the phylogeny within this group. We obtained phylogenetic trees from 39 samples of the Philopterus Complex (Psocodea: Philopteridae), using sequences of two nuclear (hypandTMEDE6) and one mitochondrial (COI) marker. We evaluated trees derived from these genes individually as well as from concatenated sequences. All trees show 20 clearly demarcated taxa (i.e., putative species) divided into five well-supported clades. Percent sequence divergence between putative species (~5–30%) for theCOIgene tended to be much higher than those for the nuclear genes (~1–15%), as expected. In cases where species are described, the lineages identified based on molecular divergence correspond to morphologically defined species. In some cases, species that are host generalists exhibit additional underlying genetic variation and such cases need to be explored by further future taxonomic revisions of the Philopterus Complex.
鸦科(雀形目)的 Philopterus 分类(Phthiraptera:Philopteridae),以及九个新种的描述
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