Data/hora: 13/06/2024 07:05:27

Biblioteca(s): | Embrapa Caprinos e Ovinos; Embrapa Meio-Norte.
Data corrente: | 04/05/2017
Data da última atualização: | 18/05/2022
Autoria: | CÂMARA, T. S.; NUNES, J. F.; DINIZ, F. M.; SILVA, G. R.; ARAUJO, A. M. de.
Afiliação: | T. S. CÂMARA, Universidade Estadual do Ceará; J. F. NUNES, Universidade Estadual do Ceará; FABIO MENDONCA DINIZ, CNPC; G. R. SILVA, UFPI; ADRIANA MELLO DE ARAUJO, CPAMN.
Título: | Genetic diversity and relatedness between Canindé and British Alpine goat breeds in Northeastern Brazil accessed by microsatellite markers.
Ano de publicação: | 2017
Fonte/Imprenta: | Genetics and Molecular Research, v. 16, n. 1, gmr16019569, mar. 2017.
Páginas: | 15 p.
DOI: | http://dx.doi.org/10.4238/gmr16019569
Idioma: | Inglês
Conteúdo: | Abstract: The aim of this study was to access the genetic diversity and relatedness between Canindé and British Alpine goat breeds in the States of Piauí and Ceará using microsatellite markers. Genomic DNA was isolated from hair samples of 99 goats belonging to six different flocks. A panel of polymorphic heterologous microsatellite loci was used to genotype individuals. The microsatellite markers resulted in a total number of 145 alleles, with an average of 8.5 alleles per locus. The observed and expected heterozygosities were ?0.687 and ?0.627, respectively, for all loci. The polymorphic information content showed that all loci were highly informative with an overall mean of 0.757. Overall FST across all populations and loci was 18%, which was consistent with the coefficient of gene differentiation (GST = 0.104). AMOVA revealed that 12.8% of the variation was captured between breeds. The Bayesian STRUCTURE clustering detected the maximum likelihood for a model of two genetically distinct groups, in agreement with the number of predefined studied breeds and the two-dimensional plot from the PCoA analysis. The exotic British Alpine breed and the naturalized Brazilian Canindé breed were clearly differentiated by the microsatellite markers, indicating that these two breeds have distant genetic identities, despite the phenotypic similarity.enotype individuals.
Palavras-Chave: | Cabra naturalizada; Diferenciação genética; Genética da conservação; Naturalized breeds; Raça naturalizada; Raças naturalizadas.
Thesagro: | Caprino; Genética animal; Marcador Molecular.
Thesaurus Nal: | Animal genetics; Brazil; Genetic markers; Goats.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Meio-Norte (CPAMN)

Exemplares:

CPAMN - (31652-1) - UPC - AP - DD -  -  -  - DIS
CNPC - (34647-1) - UPC - AP - DD -  -  -  - DIS