Strong phylogenetic inertia on genome size and transposable element content among 26 species of flies

被引：57
作者：
Sessegolo, Camille [1 ]
Burlet, Nelly [1 ]
Haudry, Annabelle [1 ]
机构：
[1] Univ Claude Bernard Lyon 1, Univ Lyon, Lab Biometrie & Biol Evolut, CNRS,UMR5558, F-69100 Villeurbanne, France
来源：
BIOLOGY LETTERS | 2016年 / 12卷 / 08期
关键词：
genome size; phylogenetic inertia; transposable elements; flies; JUNK DNA; EVOLUTION; ACCUMULATION;
D O I：
10.1098/rsbl.2016.0407
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
While the evolutionary mechanisms driving eukaryote genome size evolution are still debated, repeated element content appears to be crucial. Here, we reconstructed the phylogeny and identified repeats in the genome of 26 Drosophila exhibiting a twofold variation in genome size. The content in transposable elements (TEs) is highly correlated to genome size evolution among these closely related species. We detected a strong phylogenetic signal on the evolution of both genome size and TE content, and a genome contraction in the Drosophila melanogaster subgroup.
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页数：4
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