Genetic diversity of the Italian thoroughbred horse population
| Autor: | Raffaella Rosati, Mario Cosenza, Valentina La Rosa, Vincenzo Chiofalo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Genetic diversity
education.field_of_study 040301 veterinary sciences Population 0402 animal and dairy science Zoology 04 agricultural and veterinary sciences Biology 040201 dairy & animal science 0403 veterinary science genotyping genetic variability Animal Science and Zoology pedigree verification Genetic variability lcsh:Animal culture education Genotyping microsatellite repeats Thoroughbred horse lcsh:SF1-1100 |
| Zdroj: | Italian Journal of Animal Science, Vol 18, Iss 1, Pp 538-545 (2019) |
| Popis: | For over three centuries, thoroughbred (TB) horses have been selected exclusively for traits enhancing racing performances. Officially the TB origins can be genetically traced back along the male line due to the crossbreeding among 50 English royal mares and four Arab oriental stallions in 1700s. Because of the TB population is tightly controlled, possible loss of genetic variability should be carefully evaluated for breed conservation and management programme. To this aim FTA® cards of 10032 TB foals over a 14-year new-born campaign period were collected for genetic variability evaluation using 16 microsatellite markers. Total number of allele was 118 with a mean value of 7.37 alleles per locus; Polymorphic information content (PIC) values were above the informative threshold (PIC >0.5) for all microsatellites except for HTG4 and HMS2 whereas no significant differences were showed between the mean expected (He) and observed heterozygosity (Ho) values (0.674 vs. 0.675, respectively). Hardy–Weinberg proportion exhibited no statistically significant deviation from equilibrium (p |
| Databáze: | OpenAIRE |
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