Genetic diversity in nine native Turkish sheep breeds based on microsatellite analysis

Abstract

The genetic variability of 204 sheep from nine breeds (Awassi, Çine Çaparı, Karakaş, Karya, Karayaka, Morkaraman, Norduz, Sakız and Tuj) growing in four different regions (western, northern, eastern and south-eastern Anatolia) was assessed using 18 microsatellite loci. High mean number of alleles, allelic richness and factorial correspondence analysis showed the degree of admixture between native sheep breeds of Turkey. The Karya and Çine Çaparı breeds were observed as the most distinct of the breeds, and possible introgressions were detected in other breeds. It was found that 8.9% of genetic variation resulted from the difference between the populations. The genetic variation in Turkish breeds was not much higher than that of European breeds, which might be a consequence of the recent sharp decrease in sheep numbers.

New genetic identification and characterisation of 12 Algerian sheep breeds by microsatellite markers

“…Obtained molecular genetic parameters (Na, Ne, PIC and Hª) obtained from this study were higher than previous research (Farid et al 2000;Arranz et al 2001;Santos-Silva et al 2008;Jyotsana et al 2010;Al-Barzinji et al 2011;Hoda & Marsan 2012;Gaouar et al 2014Gaouar et al , 2015bGaouar et al , 2016aGaouar et al , 2016bYilmaz et al 2014;Kdidi et al 2015;Othman et al 2016). These results indicated that microsatellites used in the present study have a high confidence to reveal genetic diversity for these breeds.…”

“…It can be said that there is loss of heterozygosity in four microsatellite loci studied considering F IS value is also known as the inbreeding coefficient. It is noteworthy that obtained general mean of F ST value is higher than earlier studies (Cemal et al 2013;Ben Sassi-Zaidy et al 2014;Ocampo et al 2016) and lower than others (Sodhi et al 2006;Yilmaz et al 2014). The differences between the previous literature and the present study were mainly due to non-comparative aspects such as studied microsatellite and breed differences.…”

“…The mean D ST results in our study genotypes were lower when compared to Turkish native sheep breeds for the similar microsatellite loci (Yilmaz et al 2014). These results showed a low genetic diversity between studied sheep populations.…”

“…It was an important parameter in the study that the F IS and F IT values were considerably lower than the numerous sheep breeds such as Colombian sheep breeds (Ocampo et al 2016), Tunisian native sheep breeds (Ben Sassi-Zaidy et al 2014) and Turkish native sheep breeds (Yilmaz et al 2014), and higher than the values reported by Cemal et al (2013). It can be said that there is loss of heterozygosity in four microsatellite loci studied considering F IS value is also known as the inbreeding coefficient.…”

Evidence of balancing selection in multiple indigenous chicken populations

“…In particular, the Food and Agriculture Organization, FAO (2011) recommend the use of microsatellite systems to identify diversity in domestic animals, and a large number of studies have been performed in multiple species including chickens (Tadano et al, 2014;Abebe et al, 2015), cattle (Pelayo et al, 2015;Sharma et al, 2015), pigs (Choi et al, 2014;Revidatti et al, 2014), sheep (Agaviezor et al, 2012;Yilmaz et al, 2014;Ćurković et al, 2016), and goats (Nomura et al, 2012;Wei et al, 2014). Most previous studies have shown that the breeds cluster according to their geographic location, and vary in the degree of diversity depending on the breeding and management histories of the breeds using these types of marker systems, which were typically co-dominant and assumed to be drifting (Granevitze et al, 2009).…”