KOBAYASHI I, NAKAMURA K, SAITO I, AKITA M, TOZAKI T, MIYAZAKI M, HANO K, TAKASU M. Changes in population structure and genetic diversity of Misaki horses between 2015 and 2020.
J Vet Med Sci 2023;
85:1327-1329. [PMID:
37926513 PMCID:
PMC10788177 DOI:
10.1292/jvms.23-0188]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023] Open
Abstract
For the preservation of Misaki horses, changes in the population structure and genetic diversity of the horses for 5 years were analyzed using population and genotype data from 2015-2020. The microsatellite genotyping was performed, and the average number of alleles (Na), expected heterozygosity (He), and observed value (Ho) were calculated. Moreover, the average generation length (GL) was estimated from the population management record. Then, no significant differences in Na, He, and Ho were found between 2015 and 2020, suggesting their genetic diversity had been maintained for 5 years. Moreover, the average GL was estimated as 4.6 years. Compared to other native horses, a short average GL suggesting a rapid generation renewing is a characteristic of the Misaki population.
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