Data/hora: 15/06/2024 02:52:31

Provedor de dados: | 101
País: | Cuba
Título: | Genetic relationships between Cuban and Brazilian buffaloes (Bubalus bubalis) by microsatellite markers
Autores: | Martínez Marrero,Nadia; da Silva,Elizabete Cristina; Mitat Valdés,Alina; Ponce,Giselle; Benício da Silva,Regina C.; Paes Barbosa,Severino Benone; Uffo Reinosa,Odalys; Gomes Filho,Manoel Adrião.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Bubalus bubalis; Buffalypso; Microsatellite markers; Null allele; Genetic relationships.
Resumo: | Researches on genetic relationships among water buffalo populations are useful in supporting conservation decisions and designing of breeding schemes. The aim of this study was to assess the genetic relationships among Cuban Buffalypso/Carabao hybrids and Murrah and Jaffarabadi Brazilian buffaloes using nine cattle microsatellite markers. During the analysis, four loci were excluded due to the presence of null alleles, stuttering and gametic disequilibrium. Mean numbers of alleles and the heterozygosities observed and expected in the three populations were not significantly different. Heterozygosities found were above 60%. All five loci were in Hardy-Weinberg equilibrium. Wright´s index for estimating inbreeding were negative in the three populations. A moderate population differentiation was found among Cuban and Brazilian populations. The AMOVA showed that only 8.3% of the total variation observed occurred among breeds (P&lt;0.05). The multivariate factorial correspondence analysis showed low breed-specific clustering and most of Murrah and Jaffarabadi Brazilian animals plotted overlapping. UPGMA dendrogram obtained from Nei's D A genetic distance differentiated two clusters, one grouped Cuban buffaloes (bootstrap value 89%), and the other included the Brazilian populations (bootstrap value 100%). Bayesian clustering approach reinforced the previous results. The origin of Buffalypso breed and its genetic management in Cuba could be the reason to the moderate differentiation between Cuban and Brazilian populations. This study provided a preliminary analysis on genetic relationships between Cuban and Brazilian buffaloes. The research must be extended to include a higher number of microsatellite loci and buffalo populations from other geographical regions of each country.
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2015000300003
Editor: | Centro Nacional de Sanidad Agropecuaria
Formato: | text/html
Fonte: | Revista de Salud Animal  v.37 n.3 2015