In:
Animal Science Journal, Wiley, Vol. 84, No. 8 ( 2013-08), p. 585-591
Abstract:
J apanese B lack 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 J apanese B lack cattle using 52 microsatellite markers. The parameters for genetic diversity of J apanese B lack 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 H yogo subpopulation showed markedly low genetic diversity. The results of the pairwise F ST values, phylogenetic network and structure analysis indicated that the H yogo population has remarkably high level of genetic differentiation from other populations, while Y amagata, N iigata, H iroshima and K agawa 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 J apanese B lack 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.
Type of Medium:
Online Resource
ISSN:
1344-3941
,
1740-0929
DOI:
10.1111/asj.2013.84.issue-8
Language:
English
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
2095161-9
Permalink