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Genetic structure of Japanese scallop population in Hokkaido, analyzed by mitochondrial haplotype distribution
Nagashima, K.; Sato, M.; Kawamata, K.; Nakamura, A.; Ohta, T. (2005). Genetic structure of Japanese scallop population in Hokkaido, analyzed by mitochondrial haplotype distribution. Mar. Biotechnol. 7(1): 1-10. https://dx.doi.org/10.1007/s10126-004-3046-9
In: Marine Biotechnology. Springer-Verlag: New York. ISSN 1436-2228; e-ISSN 1436-2236
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| Trefwoorden |
Cultures > Shellfish culture > Mollusc culture > Scallop culture
Nucleic compounds > Nucleic acids > Dna > Mitochondrial dna
Marien/Kust |
| Author keywords |
scallop; mitochondrial DNA; genetic structure; doubly uniparentalinheritance (DUI) |
| Auteurs | | Top |
- Nagashima, K.
- Sato, M.
- Kawamata, K.
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| Abstract |
To examine the genetic structure of Japanese scallop populations (Mizuhopecten yessoensis) in Hokkaido prefecture, Japan, and compare it with those in the Aomori prefecture, we applied a method for lineage analysis based on sequence variation in a mitochondrial DNA segment (NcR2). After showing that there was a low probability of doubly uniparental inheritance of mitochondrial DNA in the scallop, we sequenced the NcR2 regions of 914 individuals from 15 populations (13 in Hokkaido and 2 in Aomori). In total, 103 different haplotypes were detected. Results of homogeneity tests for pairwise populations and the fixation indices indicated that significant heterogeneity (P < 0.0005) and structuring (pairwise fixation index FST) = 0.1606-0.4444, P = 0.0000; fixation index among groups FCT = 0.1549, P = 0.0078) could be inferred between the Hokkaido and Aomori groups, but not among populations within the groups. Moreover, heterogeneity of the haplotype distribution between populations of the 1980s and 1990s or 2000s at the 4 culturing areas was not observed (P > 0.05), and the haplotype diversity between them was not significant (P = 0.05), suggesting that the culture operations had not imparted a significant effect on the genetic structure during these periods. |
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