RAS BiologyГенетика Russian Journal of Genetics

  • ISSN (Print) 0016-6758
  • ISSN (Online) 3034-5103

Island Population of Feral Horses: Origin and Genetic Diversity

PII
S3034510325090082-1
DOI
10.7868/S3034510325090082
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 61 / Issue number 9
Pages
86-95
Abstract
For the first time, genetic analysis has confirmed the origin of a feral horse population (Equus caballus) inhabiting the Rostovsky State Natural Biosphere Reserve (Rostov Region, Russia) as descending from the Don breed, with a potential genetic contribution from the Budyonny breed. A quantitative assessment of the population's genetic parameters was conducted, followed by a comparative analysis with data from other horse breeds bred in Russia. The island population exhibits reduced allelic diversity, including a low number of effective alleles ( = 2.97; = 4.59), decreased observed heterozygosity ( = 0.59), and pronounced genetic homogeneity, indicative of high levels of isolation and inbreeding. Key factors limiting the population's genetic diversity include: a limited founder pool; geographic isolation restricting gene flow; low effective population size; repeated demographic bottlenecks throughout its historical dynamics. The findings underscore the impact of prolonged isolation and stochastic processes (genetic drift, founder effect) on shaping the unique genetic structure of island populations.
Keywords
одичавшие лошади островная популяция филогенез микроэволюционные процессы микросателлиты генетическое разнообразие изоляция Ростовский заповедник Array
Date of publication
11.03.2026
Year of publication
2026
Number of purchasers
0
Views
29

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