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| Sereno,Fabiana Tavares Pires de Souza; Sereno,José Robson Bezerra; Vega-Pla,Jose Luis; Kelly,Lucy; Bermejo,Juan Vicente Delgado. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equus caballus; Animal conservation; Molecular markers; Microsatellites; Genetic resources conservation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000500007 |
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| Cavalcanti,Lilian Cristina Gomes; Moraes,José Carlos Ferrugem; Faria,Danielle Assis de; McManus,Concepta Margaret; Nepomuceno,Alcebiades Renato; Souza,Carlos José Hoff de; Caetano,Alexandre Rodrigues; Paiva,Samuel Rezende. |
| Abstract: The objective of this work was to identify single nucleotide polymorphisms (SNPs) in resequencing data from MC1R, ASIP, and TYRP1 genes derived from Crioula sheep (Ovis aris) with different coat colors. Polymorphisms in the ASIP (agouti-signaling protein), MC1R (melanocortin 1 receptor), and TRYP1 (tyrosinase-related protein 1) genes were analyzed in 115 sheep from Embrapa’s conservation nucleus of crioula sheep, in Brazil. A total of 7,914 bp were sequenced per animal, and 14 SNPs were identified. Two additional assays were performed to detect duplications and deletions in the ASIP gene. Ninety-five percent of the coat color variation was explained by epistatic interactions observed between specific alleles in the MC1R and ASIP genes. Evidence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovis aris; ASIP; Genetic resources conservation; Marker-assisted selection; MC1R; TYRP1. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800615 |
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