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Bichir microRNA repertoire suggests a ray-finned fish affinity of Polypteriforme
Yang, Liandong1,2; Zhang, Zhaolei3,4; He, Shunping1; He, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Fish Phylogeny & Biogeog Grp, Wuhan 430072, Hubei, Peoples R China.
2015-07-25
Source PublicationGENE
ISSN0378-1119
Volume566Issue:2Pages:242-247
AbstractThe 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.
SubtypeArticle
KeywordPhylogeny Polypteriformes Micrornas Bichir
Department[Yang, Liandong ; He, Shunping] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China ; [Yang, Liandong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Zhang, Zhaolei] Univ Toronto, Dept Mol Genet, Toronto, ON, Canada ; [Zhang, Zhaolei] Univ Toronto, Donnelly Ctr Cellular & Biomol Res, Toronto, ON, Canada
DOI10.1016/j.gene.2015.04.058
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaGenetics & Heredity
WOS SubjectGenetics & Heredity
WOS IDWOS:000356189300016
WOS KeywordACTINOPTERYGIAN FISHES ; FOSSIL RECORD ; PHYLOGENY ; INTERRELATIONSHIPS ; SUPPORT ; RESOLVE ; GENES ; SYSTEMATICS ; VERTEBRATE ; MORPHOLOGY
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/23817
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorHe, SP (reprint author), Chinese Acad Sci, Inst Hydrobiol, Fish Phylogeny & Biogeog Grp, Wuhan 430072, Hubei, Peoples R China.
Affiliation1.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
Recommended Citation
GB/T 7714
Yang, Liandong,Zhang, Zhaolei,He, Shunping,et al. 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,&He, SP .(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.
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