The assessment of genetic diversity within and among the eight subpopulations of Japanese Black cattle using 52 microsatellite markers.

Takahiro Nishimaki, Takayuki Ibi, Yoshihiro Tanabe, Yoshiyuki Miyazaki, Naohiko Kobayashi, Tamako Matsuhashi, Takayuki Akiyama, Emi Yoshida, Kazumi Imai, Mayu Matsui, Keiichi Uemura, Naoto Watanabe, Tatsuo Fujita, Yosuke Saito, Tomohiko Komatsu, Takahisa Yamada, Hideyuki Mannen, Shinji Sasazaki, Tetsuo Kunieda

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Japanese Black cattle are at risk for genetic homogeneity due to intensive use of a few sires. Therefore, assessment of the actual genetic diversity of this breed is important for future breeding plans. In the present study, we investigated the genetic diversity within and among eight subpopulations of Japanese Black cattle using 52 microsatellite markers. The parameters for genetic diversity of Japanese Black cattle were comparable to those of other cattle breeds, suggesting that the relatively high genetic diversity of the breed. However, upon comparison among the eight subpopulations, the Hyogo subpopulation showed markedly low genetic diversity. The results of the pairwise FST values, phylogenetic network and structure analysis indicated that the Hyogo population has remarkably high level of genetic differentiation from other populations, while Yamagata, Niigata, Hiroshima and Kagawa populations have low levels of genetic differentiation. Furthermore, multidimensional scaling plots indicated that individuals in some subpopulations were separated from individuals in the other subpopulations. We conclude that while the overall genetic diversity of Japanese Black cattle is still maintained at a relatively high level, that of a particular subpopulation is significantly reduced, and therefore the effective population size of the breed needs to be controlled by correct mating strategies.

Original languageEnglish
Pages (from-to)585-591
Number of pages7
JournalAnimal science journal = Nihon chikusan Gakkaihō
Volume84
Issue number8
DOIs
Publication statusPublished - Aug 2013
Externally publishedYes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

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