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Partitioning kin groups of broodstock in the critically endangered Chinese sturgeon, Acipenser sinensis Gray 1835

Partitioning kin groups of broodstock in the critically endangered Chinese sturgeon, Acipenser... Pedigrees of broodstock with unknown relationship of the critically endangered Chinese sturgeon, Acipenser sinensis, was evaluated using microsatellite markers to facilitate genetic management in restocking programs with small broodstock size. We characterized the distributions of relatedness values to reconstruct kin groups in four hatchery families with known pedigrees using microsatellites. The distributions of relatedness values for kin classes were used for partitioning full sibling groups of wild A. sinensis broodstock kept in two hatcheries, resulted in 13 full sibling clusters, four of which containing 62% of all the wild individuals. This indicates high probability of choosing close related breeder pairs in random mating, thus selective breeding is necessary to minimize inbreeding and maintain genetic diversity. This study provides a useful tool for genetic management in conservation programs of A. sinensis in aim of preserving self‐sustained wild populations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Partitioning kin groups of broodstock in the critically endangered Chinese sturgeon, Acipenser sinensis Gray 1835

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References (38)

Publisher
Wiley
Copyright
"Copyright © 2019 Blackwell Verlag GmbH"
ISSN
0175-8659
eISSN
1439-0426
DOI
10.1111/jai.13610
Publisher site
See Article on Publisher Site

Abstract

Pedigrees of broodstock with unknown relationship of the critically endangered Chinese sturgeon, Acipenser sinensis, was evaluated using microsatellite markers to facilitate genetic management in restocking programs with small broodstock size. We characterized the distributions of relatedness values to reconstruct kin groups in four hatchery families with known pedigrees using microsatellites. The distributions of relatedness values for kin classes were used for partitioning full sibling groups of wild A. sinensis broodstock kept in two hatcheries, resulted in 13 full sibling clusters, four of which containing 62% of all the wild individuals. This indicates high probability of choosing close related breeder pairs in random mating, thus selective breeding is necessary to minimize inbreeding and maintain genetic diversity. This study provides a useful tool for genetic management in conservation programs of A. sinensis in aim of preserving self‐sustained wild populations.

Journal

Journal of Applied IchthyologyWiley

Published: Feb 1, 2019

Keywords: ; ; ; ;

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