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Allozymic variation in an endangered Japanese minnow, Aphyocypris chinensis

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Abstract

Aphyocypris chinensis has drastically decreased in Japan and has been designated as an endangered species. Using allozyme analysis, we tested the genetic diversity of A. chinensis strains maintained by five institutions in Japan for conservation purposes. Twelve loci encoding eight enzymes were scored. Alleles per locus ranged from 1 to 1.250, proportion of polyallelic loci was 0 to 0.250, and heterozygosity varied between 0 and 0.128. Genetic variations were found in the strains of three institutions, although no genetic variation was observed in the strains of the other two. Genetic diversity of a strain kept by the Hinamoroko Foster-parent Club was the highest, and even exceeded that of other freshwater fishes.

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Received: April 15, 2002 / Revised: August 30, 2002/ Accepted: September 17, 2002

Acknowledgments We thank all the people who helped us to collect fish samples: M. Matsuda of the Lake Biwa Museum, H. Wakimoto of the Himeji City Aquarium, T. Satonaka of Shima Marine Land, M. Miyake of Marine World Umino-Nakamichi, and M. Murakami and T. Hashimoto from Hinamoroko Foster-parent Club. We thank Dr. M.J. Grygier of the Lake Biwa Museum for his critical reading of the English manuscript. We thank Dr. N. Taniguchi and Dr. M. Ikeda of Tohoku University for technical support of allozyme analysis. We thank Dr. S. Kimura for kind advice on the manuscript. The study was funded by the Fisheries Agency.

Correspondence to:Motohiro Takagi

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Ohara, K., Takagi, M., Kaneko, Y. et al. Allozymic variation in an endangered Japanese minnow, Aphyocypris chinensis . Ichthyol Res 50, 0086–0089 (2003). https://doi.org/10.1007/s102280300013

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  • DOI: https://doi.org/10.1007/s102280300013

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