Genetic characterization of autochthonous cattle breeds, Cika and Busha, using microsatellites = Genetska karakterizacija avtohtonih pasem goved cike in buše z uporabo mikrosatelitov
Simčič, Mojca ...
Slovenian autochthonous Cika and Croatian autochthonous Busha cattle were characterized by using nine microsatellites. For each locus, allelic frequencies and heteroyzgosity were computed. The number ...of alleles identified for studied polymorphic loci varied from six to ten in Cika population and from four to eight in Busha population. The mean number of alleles per locus was eight (Cika) and five (Busha), respectively. The average expected heterozygosity (Hexp) for the nine loci ranged between 0.7733 (Cika) and 0.7199 (Busha). The highest Hexp was computed for locus BM2113 (0.8521) in Cika and 0.8099 in Busha, suggesting that this locus could be the most informative for both populations. Observed heterozygosity ranged from 0.6316 to 0.825 in Cika and from 0.6667 to 1.0 in Busha indicating a high level of polymorphism for this set of markers. The average observed heterozygosity was slightly lower in Cika (0.7403) compared to Busha population (0.7775). Both breeds were in genetic equilibrium according to the Hardy-Weinberg test. Nei's standard genetic distance D (Nei, 1978) was 0.065. The genetic difference between the two breeds could be in accordance with their brachycerous origin. The used set of markers proved informative and robust for genotyping in both Cika and Busha breeds. This set of markers can now be applied for screening higher numbers of animals to analyze possible sub-population structures, improve our knowledge of origin and phylogenetic relationships to other breeds and help to construct efficient preservation plans for these two endangered breeds.
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