Phylogenomics resolves the timing and pattern of insect evolution
Phylogenomics resolves the timing and pattern of insect evolution
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DOI：
10.1126/science.1257570
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发表时间：
2014-11-07
期刊：
影响因子：
56.9
通讯作者：
Zhou, Xin
中科院分区：
文献类型：
--
作者：
Misof, Bernhard;Liu, Shanlin;Zhou, Xin
昆虫是最特殊的动物类群，但许多主要谱系的系统发育关系仍未解决。我们从 1478 个蛋白质编码基因推断了昆虫的系统发育。使用位点特异性核苷酸或域特异性氨基酸取代模型对核苷酸和氨基酸序列进行系统发育分析，产生了统计上稳健且一致的结果，解决了先前有争议的系统发育关系。我们将昆虫的起源追溯到早奥陶纪[类似于4.79亿年前（Ma）]，昆虫飞行的起源为早泥盆世（类似于406 Ma），现存主要谱系为密西西比纪（类似于345 Ma），而全变态昆虫的主要多样化则为早白垩世。我们的系统发育学研究为未来昆虫进化创新的比较分析提供了全面可靠的支架。
Insects are the most speciose group of animals, but the phylogenetic relationships of many major lineages remain unresolved. We inferred the phylogeny of insects from 1478 protein-coding genes. Phylogenomic analyses of nucleotide and amino acid sequences, with site-specific nucleotide or domain-specific amino acid substitution models, produced statistically robust and congruent results resolving previously controversial phylogenetic relationships. We dated the origin of insects to the Early Ordovician [similar to 479 million years ago (Ma)], of insect flight to the Early Devonian (similar to 406 Ma), of major extant lineages to the Mississippian (similar to 345 Ma), and the major diversification of holometabolous insects to the Early Cretaceous. Our phylogenomic study provides a comprehensive reliable scaffold for future comparative analyses of evolutionary innovations among insects.