Genetic diversity between rahvan (pacing) horses in Turkey

Abstract

This study was conducted to determine the genetic structures of Rahvan (pacing) horses from 7 different geographical region in Turkey. For this purpose, 17 microsatellite loci were used. Blood or hair root samples were collected from 353 Rahvan horses aging 4 years or older. Also, genetic similarities or differences were investigated between Rahvan, Arabian (n=53) and Thoroughbred (n=51) horses. As a result of genetic analysis, FIS,FIT and FST values of Rahvan horses were calculated as 0.0982, 0.0999 and 0.0019, respectively. According to region (The Central Anatolia, Black Sea, Aegean, Marmara, Eastern Anatolia, Southeastern Anatolia and Mediterranean Region), observed heterozigosities (Ho) were estimated as 0.718, 0.688, 0.711, 0.719, 0.722, 0.700 and 0.708, respectively. Numbers of alleles of Rahvan, Arabian and Thoroughbred horses were 10.65, 5.18, and 5.00, respectively. Factorial Correspondences Analysis was performed to reveal differences among populations. Rahvan, Arabian and Thoroughbred horses were all clustered as separate groups. Also, structure analysis were given the same results. The results showed that Rahvan horses were similar in all regions in terms of microsatellite loci, but quite different from Arabian and Thoroughbred horses

Keywords

• Genetic diversity
• horse
• microsatellite
• rahvan
• Turkey

Türkiye’de rahvan koşan atlar arasındaki genetik çeşitlilik

Abstract

Bu araştırma, Türkiye’de 7 farklı coğrafi bölgede yetiştirilen ve Rahvan koşularına katılan atların 17 mikrosatelit lokus bakımından genetik yapılarının belirlenmesi amacıyla yapılmıştır. Bunun için 4 yaş ve üzeri 353 rahvan atın kan/kıl örnekleri kullanılmıştır. Ayrıca, Rahvan koşularına katılan atlar ile Gıda, Tarım ve Hayvancılık Bakanlığı, Yüksek Komiserler Kurulu’na kayıtlı bulunan Arap (n=53) ve İngiliz (n=51) atları arasındaki genetik benzerlik veya farklılıklar da ortaya konulmuştur. Genetik analizler sonucunda, ortalama FIS, FIT ve FST değerleri sırasıyla 0.0982, 0.0999 ve 0.0019; bölgelere göre (İç Anadolu, Karadeniz, Ege, Marmara, Doğu Anadolu, Güneydoğu Anadolu ve Akdeniz Bölgesi) gözlenen heterozigotluk indeksi (Ho) sırasıyla, 0.718, 0.688, 0.711, 0.719, 0.722, 0.700 ve 0.708 olarak belirlenmiştir. Rahvan, Arap ve İngiliz atı populasyonlarındaki ortalama allel sayıları sırasıyla, 10.65, 5.18 ve 5.00 olarak hesaplanmıştır. Populasyonlar arasındaki farklılıkları ortaya çıkarmak amacıyla yapılan Faktöriyel Benzerlik Analizi’nde Rahvan, Arap ve İngiliz atlarının ayrı kümeler oluşturduğu görülmüştür. Aynı sonuçlar yapı (structure) analizinde de ortaya çıkmıştır. Sonuç olarak, Rahvan atlarının bölgelere göre önemli farklılıklar göstermediği ancak, Arap ve İngiliz atlarından ise oldukça farklı oldukları ortaya konmuştur

Keywords

• At
• genetik çeşitlilik
• mikrosatelit
• rahvan
• Türkiye

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