超保守因子揭示衣蛾兼性角蛋白吞噬与共生性进化的关系。

IF 4.5 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Isabel Novick, Jasmine D Alqassar, Hannah E Aichelman, Akito Y Kawahara, Kaeleen Chen, Ryan St Laurent, James E Fifer, Sean Mullen
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引用次数: 0

摘要

同栖物种与人类生活在一起,或从人类身上获益。尽管它们对人类健康有潜在影响,但人们对共人生活史进化的驱动机制、形成共人饮食的进化力量以及这些综合因素如何影响种群动态和/或物种形成知之甚少。食角蛾共人蛾科有几种共人蛾,其中包括全球分布的双角蛾共人蛾,每年造成约10亿美元的损失。蝶科动物之间的共生关系与广泛的饮食策略有关。虽然大多数鱼目生物显示专性食角质,但共生物种通常是兼性或专性食角质。然而,我们对蛙科动物的进化关系知之甚少,这阻碍了对交配与饮食进化之间关系的研究。在这里,为了解决这一挑战,我们从39个天癣属样本和两个外群(包括密切相关的天癣属和天癣属)中提取DNA,并生成了数千个超保守元件(UCEs)的全基因组序列数据。我们的系统发育分析,使用串联的最大似然方法,得出了一个得到充分支持的、完全解决的系统发育,证明了共生性已经进化了多次,并且始终与兼性和专性角朊吞噬有关。贝叶斯分化时间估计表明,白垩纪深分支癣虫谱系之间存在分化,同时性角化行为的祖先起源,以及最具经济意义的共生害虫天癣虫(tiineola bissellellia)最近起源于天癣属。综上所述,我们的研究结果表明,向兼性角蛋白吞噬的转变是一个关键的进化创新,它推动了这个深分化蛾家族中合群生活史的重复进化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultraconserved Elements Reveal the Relationship Between Facultative Keratinophagy and Synanthropic Evolution in Clothes Moths.

Synanthropic species live in close association with, or benefit from, humans. Despite their potential impacts to human health, little is known about the mechanisms driving synanthropic life-history evolution, evolutionary forces shaping diet among synanthropes, or how these combined factors affect population dynamics and/or speciation. The Tineidae moth family contains several synanthropic species, including the globally distributed pest species Tineola bissellellia, that contribute to the ~$1 billion worth of damage caused annually by keratinophagous synanthropes. Synanthropy among Tineidae is associated with a wide range of dietary strategies. While most tineids display obligate detritivory, synanthropic species are typically either facultatively or obligately keratinophagous. However, little is known about evolutionary relationships within Tineidae, hampering efforts to investigate the relationship between synanthropy and diet evolution. Here, to address this challenge, we extracted DNA from 39 tineid samples and two outgroups, including the closely related Tineola and Tinea genera, and generated genome-wide sequence data for thousands of ultraconserved elements (UCEs). Our phylogenetic analyses, using a concatenated maximum-likelihood-based approach, resulted in a well-supported, fully resolved phylogeny that demonstrates synanthropy has evolved multiple times and is consistently associated with facultative and obligate keratinophagy. Bayesian divergence time estimation indicates Cretaceous divergence among deep-branching tineid lineages, an ancestral origin of facultative keratinophagy, and a recent origin of the most economically important synanthropic pest, Tineola bissellellia, from within genus Tinea. Taken together, our results suggest that a shift to facultative keratinophagy was a key evolutionary innovation that has fuelled the repeated evolution of synanthropic life histories among this deep-diverging moth family.

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来源期刊
Molecular Ecology
Molecular Ecology 生物-进化生物学
CiteScore
8.40
自引率
10.20%
发文量
472
审稿时长
1 months
期刊介绍: Molecular Ecology publishes papers that utilize molecular genetic techniques to address consequential questions in ecology, evolution, behaviour and conservation. Studies may employ neutral markers for inference about ecological and evolutionary processes or examine ecologically important genes and their products directly. We discourage papers that are primarily descriptive and are relevant only to the taxon being studied. Papers reporting on molecular marker development, molecular diagnostics, barcoding, or DNA taxonomy, or technical methods should be re-directed to our sister journal, Molecular Ecology Resources. Likewise, papers with a strongly applied focus should be submitted to Evolutionary Applications. Research areas of interest to Molecular Ecology include: * population structure and phylogeography * reproductive strategies * relatedness and kin selection * sex allocation * population genetic theory * analytical methods development * conservation genetics * speciation genetics * microbial biodiversity * evolutionary dynamics of QTLs * ecological interactions * molecular adaptation and environmental genomics * impact of genetically modified organisms
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