一个孤立种群中本土绵羊的多样性。
Diversity of indigenous sheep of an isolated population.
作者信息
David Caroline Marçal Gomes, Quirino Celia Raquel, Vega Wilder Hernando Ortiz, Bartholazzi Junior Aylton, Madella-Oliveira Aparecida de Fátima, Costa Ricardo Lopes Dias
机构信息
Universidade Estadual do Norte Fluminense, Centro de Ciências e Tecnologias Agropecuária Laboratório de Reprodução e Melhoramento Genético Animal, 2000, Alberto Lamego Ave, Campos dos Goytacazes, Rio de Janeiro, 28016-811, Brazil.
Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, 482 Rod Br, Km 47, s/n - Rive, Alegre, Espirito Santo, 29520-000, Brazil.
出版信息
BMC Vet Res. 2018 Nov 16;14(1):350. doi: 10.1186/s12917-018-1682-y.
BACKGROUND
Because of the influence of genetics on animal production and the risk of losing genetic diversity of naturally adapted breeds, this study evaluated the genetic diversity of sheep of the Morada Nova breed belonging to an animal science institute in Brazil. The herd in question is one of the country's most representative of the breed. Samples of DNA extracted from the plasma of 61 animals were used for later analysis of the genotypes using microsatellite molecular markers.
RESULTS
The polymorphic information content was 0.66, the observed heterozygosity was 0.65 and the fixation index was 0.048. According to the results, there is moderate genetic diversity in the studied population, suggesting the implantation of breeding programs aimed at conservation of the observed genetic diversity.
CONCLUSION
The results obtained in this study will be of great importance to decisions on herd structure, besides contributing to other work to be carried out at the research center.
背景
由于遗传学对动物生产的影响以及自然适应品种遗传多样性丧失的风险，本研究评估了巴西一家动物科学研究所的莫拉达诺瓦品种绵羊的遗传多样性。所研究的畜群是该国该品种最具代表性的畜群之一。从61只动物的血浆中提取的DNA样本用于随后使用微卫星分子标记对基因型进行分析。
结果
多态信息含量为0.66，观察到的杂合度为0.65，固定指数为0.048。根据结果，所研究的群体存在中等程度的遗传多样性，这表明应实施旨在保护观察到的遗传多样性的育种计划。
结论
本研究获得的结果对于畜群结构的决策非常重要，此外还将有助于研究中心开展的其他工作。
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