Adaptation and molecular evidence for convergence in decapod crustaceans from deep-sea hydrothermal vent environments

doi:10.1111/mec.15610

IOCAS-IR > 实验海洋生物学重点实验室

	Adaptation and molecular evidence for convergence in decapod crustaceans from deep-sea hydrothermal vent environments
	Yuan, Jianbo 1,2,3; Zhang, Xiaojun 1,2,3; Gao, Yi 1,2,3; Zhang, Xiaoxi1,2 ; Liu, Chengzhang 1,2,3; Xiang, Jianhai1,2,3 ; Li, Fuhua 1,2,3
	2020-09-11
发表期刊	MOLECULAR ECOLOGY
ISSN	0962-1083
页码	16
通讯作者	Zhang, Xiaojun(xjzhang@qdio.ac.cn) ; Li, Fuhua(fhli@qdio.ac.cn)
摘要	Hydrothermal vents are unique deep-sea environments exhibiting extreme temperature gradients and toxic concentrations of H2S that limit the growth of biological communities. Notably, some decapod crustaceans are the dominant organisms inhabiting these environments, and share similar phenotypic and physiological traits, such as white body coloration and chemosynthetic capacity. However, a lack of genomic information has precluded an understanding of these convergent phenotypes. Here, comparative transcriptomic analyses were performed in 14 decapod species, including four deep-sea hydrothermal vent species and 10 shallow-water relatives. Phylogenetic analysis suggested that the four deep-sea species stemmed from different ancestors despite being geographically close, and therefore their similar traits were probably the product of convergent evolution rather than lineal inheritance. A total of 391 positively selected genes, 109 parallel substituted genes and 33 significantly expanded gene families were identified in the deep-sea decapods. Among these, only theSNARE interactions in vesicular transportpathway was significantly enriched, with both positively selected genes and parallel substituted genes, suggesting that specific macromolecule transport might be a strong convergent evolution trait in deep-sea decapods. Furthermore, many genes involved in protein synthesis, processing and energy metabolism were detected under convergent evolution, suggesting a role for adaptive evolution in association with a specific metabolic pathway in response to chemosynthetic nutrition patterns. Moreover, our study suggests that convergently evolved white body colour might have resulted from the contraction of the crustacyanin gene family and the low content of astaxanthin in the body of deep-sea decapods. Therefore, this study provides valuable genetic evidence for convergent evolution in deep-sea decapods.
关键词	adaptation chemosynthesis convergent evolution deep-sea decapods
DOI	10.1111/mec.15610
收录类别	SCI
语种	英语
资助项目	Senior User Project of RV KEXUE[KEXUE2018G19] ; National Natural Science Foundation of China[41876167] ; National Key Research & Development Program of China[2018YFD0900103] ; Major Science and Technology Innovation Projects in Shandong Province[2018SDKJ0302-5]
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:000567834100001
出版者	WILEY
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/168775
专题	实验海洋生物学重点实验室
通讯作者	Zhang, Xiaojun; Li, Fuhua
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Yuan, Jianbo,Zhang, Xiaojun,Gao, Yi,et al. Adaptation and molecular evidence for convergence in decapod crustaceans from deep-sea hydrothermal vent environments[J]. MOLECULAR ECOLOGY,2020:16.
APA	Yuan, Jianbo.,Zhang, Xiaojun.,Gao, Yi.,Zhang, Xiaoxi.,Liu, Chengzhang.,...&Li, Fuhua.(2020).Adaptation and molecular evidence for convergence in decapod crustaceans from deep-sea hydrothermal vent environments.MOLECULAR ECOLOGY,16.
MLA	Yuan, Jianbo,et al."Adaptation and molecular evidence for convergence in decapod crustaceans from deep-sea hydrothermal vent environments".MOLECULAR ECOLOGY (2020):16.

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