SCHWEIZER ARCHIV FÜR TIERHEILKUNDE, cilt.165, sa.11, ss.716-725, 2023 (SCI-Expanded)
This study aimed to determine the effectiveness of parentage
verification in Arabian and Thoroughbred horses in Türkiye using microsatellite markers. A total of 813 Arabian and
959 Thoroughbred horses were genotyped using a total of
17 microsatellite markers. The mean effective number of
alleles was 3,34 and the mean number of alleles was 7,41 in
Arabian horses. It was calculated that the mean He and Ho
values in Arabian horses were 0,677 and 0,680, respectively. The mean effective number of alleles was 3,55 and the
mean number of alleles was 6,59 in Thoroughbred horses.
It was calculated that the mean Ho and He values in Thoroughbred horses were 0,697 and 0,684, respectively. When
the studied Arabian and Thoroughbred horse populations
are considered as a single population, the mean FIT, FST and
FIS values were found to be 0,063, 0,074 and, – 0,011, respectively. Also, 4 loci in Arabian horses and 3 loci in Thoroughbred horses significantly deviated from HWE. The
mean PIC value was 0,63 in Arabian horses and 0,64 in
Thoroughbred horses. As a result; the microsatellites including the most informative 15 and 9 loci had a total value of
> 0,9999 (11 and 7 loci > 0,999) in each population for PE
– 1 and PE – 3, respectively. It has been concluded that
parentage verification and genetic identification can be
made successfully in the Arabian and Thoroughbred horse
populations by using the microsatellite markers panel.