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题名: Whole Genome Incorporation and Epigenetic Stability in a Newly Synthetic Allopolyploid of Gynogenetic Gibel Carp
作者: Shao, Guang-Ming1, 2; Li, Xi-Yin1, 2; Wang, Yang1, 2; Wang, Zhong-Wei1, 2; Li, Zhi1; Zhang, Xiao-Juan1; Zhou, Li1, 2; Gui, Jian-Fang1, 2
关键词: hybridization ; synthetic allopolyploid ; gibel carp ; gynogenesis ; epigenetics ; cytosine methylation pattern
刊名: GENOME BIOLOGY AND EVOLUTION
发表日期: 2018-09-01
DOI: 10.1093/gbe/evy165
卷: 10, 期:9, 页:2394-2407
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]: Evolutionary Biology ; Genetics & Heredity
英文摘要: Allopolyploidization plays an important role in speciation, and some natural or synthetic allopolyploid fishes have been extensively applied to aquaculture. Although genetic and epigenetic inheritance and variation associated with plant allopolyploids have been well documented, the relative research in allopolyploid animals is scarce. In this study, the genome constitution and DNA methylation inheritance in a newly synthetic allopolyploid of gynogenetic gibel carp were analyzed. The incorporation of a whole genome of paternal common carp sperm in the allopolyploid was confirmed by genomic in situ hybridization, chromosome localization of 45S rDNAs, and sequence comparison. Pooled sample-based methylation sensitive amplified polymorphism (MSAP) revealed that an overwhelming majority (98.82%) of cytosine methylation patterns in the allopolyploid were inherited from its parents of hexaploid gibel carp clone D and common carp. Compared to its parents, 11 DNA fragments in the allopolyploid were proved to be caused by interindividual variation, recombination, deletion, and mutation through individual sample-based MSAP and sequencing. Contrast to the rapid and remarkable epigenetic changes in most of analyzed neopolyploids, no cytosine methylation variation was detected in the gynogenetic allopolyploid. Therefore, the newly synthetic allopolyploid of gynogenetic gibel carp combined genomes from its parents and maintained genetic and epigenetic stability after its formation and subsequently seven successive gynogenetic generations. Our current results provide a paradigm for recurrent polyploidy consequences in the gynogenetic allopolyploid animals.
关键词[WOS]: CARASSIUS-AURATUS-GIBELIO ; SILVER CRUCIAN CARP ; EXPRESSION LEVEL DOMINANCE ; ROLLING-CIRCLE TRANSPOSONS ; DNA METHYLATION ; GENE-EXPRESSION ; BRASSICA-NAPUS ; EXTRA MICROCHROMOSOMES ; CYTOSINE METHYLATION ; POLYPLOIDY ORIGINS
语种: 英语
项目资助者: Key Program of Frontier Sciences of the Chinese Academy of Sciences(QYZDY-SSW-SMC025) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA08030201) ; earmarked fund for Modern Agro-industry Technology Research System(NYCYTX-49) ; Autonomous Project of the State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ01)
WOS记录号: WOS:000446102700019
ISSN号: 1759-6653
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/56154
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, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
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