Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme

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	Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme
	Yang, Liandong 1,2; Zhang, Zhaolei 3,4; He, Shunping 1
刊名	GENE
	2015-07-25
卷号	566 期号:2 页码:242-247
关键词	Phylogeny Polypteriformes MicroRNAs Bichir
ISSN号	0378-1119
通讯作者	He, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Fish Phylogeny & Biogeog Grp, Wuhan 430072, Hubei, Peoples R China.
英文摘要	The phylogenetic position of Polypteriforme (bichirs) remains elusive, despite extensive research both on morphological and molecular datasets. Unfortunately morphological cladistic analyses and molecular phylogenetic analyses had reached conflicting conclusions, as Polypteriformes were either grouped with lobe-finned fishes (Sarcopterygii) or ray-finned fishes (Actinoptelygii), or even classified as their own group, the Brachiopterygii. In this study, we applied a third independent source of datasets, the presence versus absence of microRNAs, to re-investigate the phylogenetic relationship of bichirs. Through deep sequencing of small RNA library, we showed that bichirs should be grouped into ray-finned fishes rather than lobe-finned fishes. Phylogenetic analysis confirmed that bichirs were placed as the most basal member of the ray-finned fishes. Bichirs shared five unique microRNA families with teleostei, which were not found in any other species investigated to date. Bichirs have also retained three of five microRNAs that were previously deemed to be lost exclusively in teleostei. Furthermore, we report more than one hundred novel microRNAs that are unique to bichir. The identification of microRNAs in bichir provides overwhelming evidence for their affinity of ray-finned fishes. The sarcopterygian-like characteristics such as lobed fins, paired ventral lungs, and external gills in juveniles should not be considered as derived traits shared with those of sarcopterygians. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Genetics & Heredity
研究领域[WOS]	Genetics & Heredity
关键词[WOS]	ACTINOPTERYGIAN FISHES ; FOSSIL RECORD ; PHYLOGENY ; INTERRELATIONSHIPS ; SUPPORT ; RESOLVE ; GENES ; SYSTEMATICS ; VERTEBRATE ; MORPHOLOGY
收录类别	SCI
语种	英语
WOS记录号	WOS:000356189300016
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/23817]
专题	水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Toronto, Dept Mol Genet, Toronto, ON, Canada 4.Univ Toronto, Donnelly Ctr Cellular & Biomol Res, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Yang, Liandong,Zhang, Zhaolei,He, Shunping. Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme[J]. GENE,2015,566(2):242-247.
APA	Yang, Liandong,Zhang, Zhaolei,&He, Shunping.(2015).Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme.GENE,566(2),242-247.
MLA	Yang, Liandong,et al."Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme".GENE 566.2(2015):242-247.