The Sicilian rock partridge: latest data on genetic integrity from four different relict areas

Abstract

Sicily (Italy) hosts a "relict", endemic population of the birds Alectoris graeca whitakeri commonly known as Sicilian Rock Partridge. In the last decades, due to the risk of restocking with other European and Asiatic species for hunting purpose, a study was carried out to investigate the potential risk of hybridisation. The mtDNA control-region and nuclear microsatellites were genotyped. Due to the importance of the species, samples were mainly characterized by feather and stool samples, and rarely by carcasses found in the environment, from year 2011 to 2012. A panel of 7 microsatellite loci was validated. Three multiplexes that allowed the simultaneous amplification of 3 microsatellites, and 2 for other two microsatellites, for a total of 7 markers, were utilized. Results showed the occurrence of hybridization both towards the Middle Eastern species,A. chukar and the Northern European species, A. rufa. 18.5% of the samples were collected from the wild environment showed an high degree of hybridization. This fact, even if linked to a small number of samples, highlights a potential risk of hybridization 2 in 4 Sicilian provinces and underlines the importance of further investigations to understand the entity of the problem.

Geographic Genetic Structure of Alectoris chukar in Türkiye: Post-LGM-Induced Hybridization and Human-Mediated Contaminations

“…Such contamination can also be seen in A. rufa and A. greaca in Europe, which appears to be related to A. chukar , previously introduced into the Mediterranean Basin via the Silk Road [ 24 , 30 , 78 , 79 , 178 ]. Subsequently, the breeding of A. chukar -contaminated individuals with farm-reared chukars for hunting purposes contaminated the local gene pools of A. rufa and A. greaca in Europe, with A. chukar genes at a dangerous level [ 182 , 183 , 184 , 185 ].…”