Population structure and genetic characterization of two native Danish sheep breeds

IF 0.8 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-04-02 DOI:10.1080/09064702.2019.1639804

A. Schönherz, B. Szekeres, Vivi Hunnicke Nielsen, B. Guldbrandtsen

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引用次数: 2

Abstract

ABSTRACT Genetic diversity in livestock animals has become recognized as important genetic resource for future sustainable livestock production. Especially native breeds, adapted to their local environment, are of considerable interest. Here, we report a genome-wide characterization of two native Danish sheep breeds, the Danish Landrace sheep and the Danish White-Headed Marsh sheep. We investigated the genetic diversity both at national and European breed level using a European-derived reference panel. The native Danish breeds are genetically distinct from other Nordic breeds. Their closest relatives are Border Leicester, Galway, and Texel. Apart from gene flow between native Danish breeds, Texel admixture was most dominant. For Danish Landrace sheep, a population split into two genetically distinct sub-populations was detected. Compared to other livestock species, genomic inbreeding was moderate. However, among European-derived sheep the native Danish breeds were among the 10 most inbred investigated, illustrating the need for sustainable management strategies to preserve genetic diversity.

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两个丹麦本土绵羊品种的种群结构和遗传特征

家畜遗传多样性已被认为是未来可持续畜牧业生产的重要遗传资源。特别是适应当地环境的本地品种，引起了相当大的兴趣。在这里，我们报告了两个本地丹麦羊品种的全基因组特征，丹麦长白羊和丹麦白头沼泽羊。我们利用欧洲衍生的参考小组在国家和欧洲品种水平上调查了遗传多样性。丹麦本土品种在基因上与其他北欧品种截然不同。他们最近的亲戚是边境莱斯特，戈尔韦和特塞尔。除了丹麦本土品种之间的基因流动外，Texel混合是最主要的。在丹麦长白羊中，发现了两个遗传上不同的亚群。与其他家畜品种相比，基因组近亲繁殖是中等的。然而，在欧洲衍生的绵羊中，丹麦本土品种是被调查的10个最近交品种之一，这说明需要可持续的管理策略来保护遗传多样性。

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来源期刊

Acta Agriculturae Scandinavica Section A-Animal Science 农林科学-奶制品与动物科学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： Acta Agriculturæ Scandinavica, Section A – Animal Science publishes results of original research in animal science and their applications related to the following topics: -Animal breeding and genetics -Molecular genetics -Animal physiology and reproduction -Nutrition and feeding -Animal behaviour and welfare -General animal husbandry and systems of production, including economic and technical aspects -Hygiene and quality of animal products In addition to original articles, covering basic as well as applied subjects, the journal features review articles and short communications. Acta Agriculturæ Scandinavica, Section A – Animal Science forms part of a trilogy of titles published on behalf of the Nordic Association of Agricultural Scientists (NJF). The series also includes Section B - Soil & Plant Science and the recently launched Section C - Food Economics . Acta Agriculturae Scandinavica A, B and C are available to purchase as a combined subscription. This provides access to all three journals in the series, and is available to institutional subscribers only. For full pricing information, please view the Taylor & Francis Journals Price List here. Scientists in research, teaching and extension with specialised interest in animal science and production.