Ćurković M, Ramljak J, Ivanković S, Mioč B, Ivanković A, Pavić V, Brka M, Veit-Kensch C, Medugorac I
Faculty of Agriculture and Food Technology, University in Mostar, Mostar, Bosnia and Herzegovina.
Faculty of Agriculture, University of Zagreb, Zagreb, Croatia.
J Anim Breed Genet. 2016 Feb;133(1):71-80. doi: 10.1111/jbg.12160. Epub 2015 Apr 20.
The phylogenetic layout of the genotyped (30 microsatellite) 18 sheep breeds in this study demands and provides the opportunity to evaluate both neutral and adaptive components of genetic diversity in a naturally and artificially selected and subdivided sheep population. Seven Pramenka strains from Bosnia and Herzegovina and Croatia characterized by a very low intensity of artificial selection, preserved the highest neutral genetic variability. Eight central and north-western European breeds under considerable artificial isolation and selection preserved the lowest genetic variability. Only combinations of various phylogenetic parameters offer a reasonable explanation for underlying evolutionary forces working in the investigated island and mainland sheep breeds under variable natural and artificial selection. More than 60% of total genetic, diversity was allocated to virtually unselected Pramenka strains, and an additional 25% to native moderately selected Graue Gehoernte Heidschnucke and intensively selected Ostfriesische Milchschafe. Some economically very important breeds and strains did not contribute to a pool with maximal genetic diversity, while they play an important role in the cultural heritage of respective countries.
本研究中对18个绵羊品种（30个微卫星基因分型）的系统发育布局，为评估自然和人工选择及细分的绵羊群体中遗传多样性的中性和适应性成分提供了契机。来自波斯尼亚和黑塞哥维那以及克罗地亚的7个普拉门卡品系，人工选择强度极低，保留了最高的中性遗传变异性。8个处于相当程度人工隔离和选择下的中欧和西北欧品种，保留的遗传变异性最低。只有各种系统发育参数的组合，才能合理解释在不同自然和人工选择下，所研究的岛屿和大陆绵羊品种中潜在的进化力量。超过60%的总遗传多样性存在于几乎未经过选择的普拉门卡品系中，另外25%存在于本土经过适度选择的灰色有角黑头羊和经过高强度选择的东弗里斯兰乳用羊中。一些经济上非常重要的品种和品系，对具有最大遗传多样性的基因库没有贡献，然而它们在各自国家的文化遗产中发挥着重要作用。
