Spontaneous polyploidization in critically endangered Acipenser mikadoi
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We investigated the source of spontaneous polyploidization in the critically endangered Acipenser mikadoi. Fourteen sib progeny of A. mikadoi and 11 hybrids between an A. mikadoi female and a Huso dauricus male, all showing atypically high ploidy, were analysed. Parent assignment based on five highly polymorphic microsatellite markers confirmed spontaneous duplication of maternal chromosome sets via retention of the second polar body to be the source of spontaneous polyploidization. To our knowledge, this provides the first evidence of the maternal origin of spontaneous polyploidization in A. mikadoi. Factorial correspondence analysis of the multilocus microsatellite genotypes placed the parent fish of spontaneous polyploids in clearly delineated clusters of A. mikadoi and H. dauricus, and parent fish had mitochondrial control region haplotypes corresponding to their presumed species. Thus, parent fish were confirmed to be of pure genetic origin, and hybridization did not promote the observed spontaneous polyploidization.
収録刊行物
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- Fisheries Science
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Fisheries Science 83 (4), 587-595, 2017-07
[Tokyo] : [Springer Japan]
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詳細情報 詳細情報について
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- CRID
- 1050001339022968192
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- NII論文ID
- 120006484236
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- NII書誌ID
- AA10993718
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- ISSN
- 14442906
- 09199268
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- HANDLE
- 2115/70888
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- NDL書誌ID
- 028356777
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN