Data/hora: 02/06/2024 03:52:36

Provedor de dados: | Pesquisa Agropecuária Brasileira
País: | Brazil
Título: | Genetic diversity of Brazilian Pantaneiro horse and relationships among horse breeds
Autores: | Sereno,Fabiana Tavares Pires de Souza; Sereno,José Robson Bezerra; Vega-Pla,Jose Luis; Kelly,Lucy; Bermejo,Juan Vicente Delgado.
Data: | 2008-05-01
Ano: | 2008
Palavras-chave: | Equus caballus; Animal conservation; Molecular markers; Microsatellites; Genetic resources conservation.
Resumo: | The objective of this work was to evaluate the genetic diversity of Brazilian Pantaneiro horse by microsatellite markers, investigate the effect of genetic bottlenecks and estimate genetic differentiation among four horse breeds. Genetic variation was estimated through allele frequencies and mean breed heterozygosity. Nei's genetic distances among the breeds Pantaneiro, Thoroughbred, Arabian, Spanish Pure Breed (Andalusian), and Uruguay Creole were calculated, and it was used to construct an UPGMA dendrogram. Clustering at different K values was calculated to infer population structure and assign individuals to populations. Nei's distances showed a minimum distance between Pantaneiro horse and Spanish Pure Breed (0.228), and similar distances from Spanish Pure Breed to Thoroughbred and to Arabian (0.355 and 0.332). It was observed a great level of diversity, clear distance from Pantaneiro horse to other breeds, and genetic uniformity within breed. It was verified a certain level of substructure of Pantaneiro horse showing no influences from the other studied breeds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000500007

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2008000500007
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.43 n.5 2008
Fonte: | info:eu-repo/semantics/openAccess