Diversidade genética em cães da raça Pastor Alemão utilizando análise de pedigree

Ciencia Rural

article

Annaiza Braga Bignardi¹  Mário Luiz Santana Júnior¹ 

[1] Universidade Federal de Rondonópolis

关键词: conservation;    inbreeding;    pedigree analysis;    population structure;   

DOI  :  10.1590/0103-8478cr20210827

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The German Shepherd dog breed is the most popular breed globally and in Brazil. The study of the population structure through pedigree information is an essential tool to understand the history of the Brazilian German Shepherd dog breed. This study evaluated the status of genetic diversity and population structure of the Brazilian German Shepherd dog breed. The pedigree included a total of 77,938 animals born between 1970 and 2014. The average generation interval in this population was 3.91 years. Considering the reference population, 2,183 founders were identified. Approximately 3% of the genetic diversity of the current population (2010-2014) was lost, most of which was due to genetic drift. The effective population size was relatively small, and the pedigree showed bottlenecks indicating a loss of genetic diversity in this breed. These results indicated the need to adopt measures against the excessive increase in inbreeding and monitor effective population size to minimize genetic diversity loss.

【 授权许可】

Unknown