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题名: Evolutionary history of two divergent Dmrt1 genes reveals two rounds of polyploidy origins in gibel carp
作者: Li, Xi-Yin1; Zhang, Xiao-Juan1; Li, Zhi1; Hong, Wei1; Liu, Wei1; Zhang, Jun1; Gui, Jian-Fang1
关键词: Dmrt1 ; Sex determination ; Polyploidy ; Diploidization ; Evolutionary history
刊名: MOLECULAR PHYLOGENETICS AND EVOLUTION
发表日期: 2014-09-01
DOI: 10.1016/j.ympev.2014.05.005
卷: 78, 页:96-104
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]: Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
英文摘要: Polyploidy lineages, despite very rare in vertebrates, have been proposed to play significant role in speciation and evolutionary success, but the occurrence history and consequences are still largely unknown. In this study, we used the conserved Dmrt1 to analyze polyploidy occurrence and evolutionary process in polyploid gibel carp. We identified two divergent Dmrt1 genes and respectively localized the two genes on three homologous chromosomes. Subsequently, the corresponding full-length cDNAs and genomic sequences of Dmrt1 genes were also characterized from the closely related species including Carassius auratus auratus and Cyprinus carpio, and their two Dmrt1 genes were respectively localized on two homologous chromosomes. Significantly, the evolutionary relationship analyses among cDNA and genomic DNA sequences of these Dmrt1 genes revealed two rounds of polyploidy origins in the gibel carp: an early polyploidy might result in an common tetraploid ancestor of Carassius auratus gibelio, Carassius auratus auratus and Cyprinus carpio before 18.49 million years ago (Mya), and an late polyploidy might occur from evolutionary branch of Carassius auratus at around 0.51 Mya, which lead to the occurrence of the hexaploid gibel carp. Therefore, this study provides clear genetic evidence for understanding occurrence time and historical process of polyploidy in polyploid vertebrates. (C) 2014 Elsevier Inc. All rights reserved.
关键词[WOS]: CARASSIUS-AURATUS-GIBELIO ; SILVER CRUCIAN CARP ; DM-DOMAIN GENE ; LIBRARY CONSTRUCTION ; SEX DETERMINATION ; CLONAL DIVERSITY ; CYPRINUS-CARPIO ; Y-CHROMOSOME ; FISH ; COMPLEX
语种: 英语
WOS记录号: WOS:000342480400009
ISSN号: 1055-7903
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20339
Appears in Collections:鱼类生物学及渔业生物技术研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Grad Univ, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

Recommended Citation:
Li, Xi-Yin; Zhang, Xiao-Juan; Li, Zhi; Hong, Wei; Liu, Wei; Zhang, Jun; Gui, Jian-Fang.Evolutionary history of two divergent Dmrt1 genes reveals two rounds of polyploidy origins in gibel carp,MOLECULAR PHYLOGENETICS AND EVOLUTION,2014,():
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