气候变化领域集成服务门户(CCPortal): Gene expression dynamics during rapid organismal diversification in African cichlid fishes

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DOI	10.1038/s41559-020-01354-3
	Gene expression dynamics during rapid organismal diversification in African cichlid fishes
	El Taher A.; B?hne A.; Boileau N.; Ronco F.; Indermaur A.; Widmer L.; Salzburger W.
发表日期	2021
ISSN	2397-334X
起始页码	243
结束页码	250
卷号	5 期号:2
英文摘要	Changes in gene expression play a fundamental role in phenotypic evolution. Transcriptome evolutionary dynamics have so far mainly been compared among distantly related species and remain largely unexplored during rapid organismal diversification, in which gene regulatory changes have been suggested as particularly effective drivers of phenotypic divergence. Here we studied gene expression evolution in a model system of adaptive radiation, the cichlid fishes of African Lake Tanganyika. By comparing gene expression profiles of 6 different organs in 74 cichlid species representing all subclades of this radiation, we demonstrate that the rate of gene expression evolution varies among organs, transcriptome parts and the subclades of the radiation, indicating different strengths of selection. We found that the noncoding part of the transcriptome evolved more rapidly than the coding part, and that the gonadal transcriptomes evolved more rapidly than the somatic ones, with the exception of liver. We further show that the rate of gene expression change was not constant over the course of the radiation but accelerated at its later phase. Finally, we show that—at the per-gene level—the evolution of expression patterns is dominated by stabilizing selection. ? 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	animal; cichlid; gene expression; genetics; molecular evolution; phylogeny; Tanzania; Animals; Cichlids; Evolution, Molecular; Gene Expression; Phylogeny; Tanzania
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257030
作者单位	Zoological Institute, Department of Environmental Sciences, University of Basel, Basel, Switzerland; Center for Molecular Biodiversity Research, Zoological Research Museum Alexander Koenig, Bonn, Germany
推荐引用方式 GB/T 7714	El Taher A.,B?hne A.,Boileau N.,et al. Gene expression dynamics during rapid organismal diversification in African cichlid fishes[J],2021,5(2).
APA	El Taher A..,B?hne A..,Boileau N..,Ronco F..,Indermaur A..,...&Salzburger W..(2021).Gene expression dynamics during rapid organismal diversification in African cichlid fishes.Nature Ecology & Evolution,5(2).
MLA	El Taher A.,et al."Gene expression dynamics during rapid organismal diversification in African cichlid fishes".Nature Ecology & Evolution 5.2(2021).