ABSTRACT

The Norwegian coastal goat is a national and endangered breed. Coastal goat populations are mainly divided with a large mainland and two small island populations. The objective of this study is to describe genetic diversity in the feral Skorpa island population and its relationship to the mainland coastal goat population (Selje) using the Norwegian milk goat population as a reference. Analyses were based on 96 samples genotyped by the CaprineSNP50 Beadchip from three populations; 7 Skorpa (SK), 37 Selje (SE) and 52 Norwegian milk goats (MG). The SK population had significantly less genetic variation and higher levels of inbreeding than the two other populations. It was more distant from the two mainland populations than they were from each other. The marginal contribution of the SK population to genetic diversity was small. Means of introducing genetic diversity into the SK population should be considered if the population is prioritized for conservation.

摘要

挪威沿海山羊是国家濒危品种。沿海山羊种群主要分为大大陆种群和两个小岛屿种群。这项研究的目的是使用挪威奶山羊种群作为参考，描述斯科尔帕野生岛种群的遗传多样性及其与大陆沿海山羊种群（Selje）的关系。分析基于CaprineSNP50 Beadchip对来自三个人群的96个样本进行基因分型。7座Skorpa（SK），37座Selje（SE）和52座挪威奶山羊（MG）。与其他两个种群相比，SK种群的遗传变异少得多，近交水平更高。它与两个大陆人口相距甚远。SK种群对遗传多样性的边际贡献很小。