Genetic Variation among Local Populations of the Japanese Mitten Crab <i>Eriocheir japonica</i> De Haan
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- Gao Tianxiang
- Department of Aquatic Biosciences, Tokyo University of Fisheries
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- Watanabe Seiichi
- Department of Aquatic Biosciences, Tokyo University of Fisheries
Bibliographic Information
- Other Title
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- Genetic Variation among Local Populations of the Japanese Mitten Crab Eriocheir japonica De Haan
- Genetic Variation among Local Populatio
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Description
Horizontal starch gel electrophoresis was used to investigate the genetic stock structure of the Japanese mitten crab Eriocheir japonica. Twenty-two putative enzyme-coding loci were examined from 1072 crabs at 22 localities from Hokkaido to Okinawa in Japan and 69 Chinese mitten crabs E. sinensis. Nine loci (40.9%) were polymorphic, i.e., AAT-1*, AAT-2*, G3PDH*, GPI*, IDHP-1*, IDHP-2*, MDH-1*, MDH-2* and PGDN*. A geographical cline of allelic frequencies was not clearly recognized at all the loci but the alleles *b and *e at the GPI* locus might be a diagnostic character of the Okinawa populations. The average proportion of polymorphic loci and heterozygosity were 0.149 and 0.020, respectively. Nei's genetic distance was 0.0004 (0-0.0013) which was about 1/140 of the Nei's genetic distance between the Japanese mitten crab and the Chinese mitten crab. Gene diversity analysis indicated that only 1.20% of the variation was between samples. These results indicate that the genetic differentiation of the local populations is small.
Journal
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- Fisheries science
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Fisheries science 64 (2), 198-205, 1998
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390001204428037888
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- NII Article ID
- 130003742137
- 10004873641
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- NII Book ID
- AA10993718
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- NDL BIB ID
- 4462719
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- ISSN
- 09199268
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed