Data/hora: 03/06/2024 18:03:45

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 18/12/2018
Data da última atualização: | 24/01/2023
Autoria: | ZANELLA, R.; LAGO, L. V.; SILVA, A. N. da; PÉRTILLE, F.; CARVALHO, N. S. de; PANETTO, J. C. do C.; ZANELLA, G. C.; FACIOLI, F. L.; SILVA, M. V. G. B.
Afiliação: | RICARDO ZANELLA, Universidade de Passo Fundo; LUÍSA V. LAGO, Universidade de Passo Fundo; ARTHUR N. DA SILVA, Universidade de Passo Fundo; FÁBIO PÉRTILLE, ESALQ/USP; NATHÃ S. de CARVALHO, UFRGS; JOAO CLAUDIO DO CARMO PANETTO, CNPGL; GIOVANA C. ZANELLA, Universidade de Passo Fundo; FERNANDA L. FACIOLI, Universidade de Passo Fundo; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL.
Título: | Genetic characterization of Indubrasil cattle breed population.
Ano de publicação: | 2018
Fonte/Imprenta: | Veterinary Sciences, v. 5, n. 4, 2018.
Páginas: | 10 p.
DOI: | 10.3390/vetsci5040098
Idioma: | Inglês
Conteúdo: | Abstract The Indubrasil breed was developed in the Brazilian region called Triângulo Mineiro as a result of a cross between zebu cattle. Initially, it was used as a terminal cross and currently it represents approximately 4.45% of all the Brazilian zebu cattle. Studies were conducted to estimate genetic parameters in the Indubrasil using pedigree information, however, until now, no study has been developed using large-scale genomic markers in this breed. Pedigree information are widely used to investigate population parameters; however, they can neglect some estimates when compared to the use of genomic markers. Therefore, the objective of this study was to investigate the population structure and the genetic diversity of Indubrasil cattle using a high-density Single Nucleotide Polymorphism (SNP) panel (Illumina BovineHD BeadChip 700k). Levels of genomic homozygosity were evaluated using three different approaches: Runs of homozygosity (FROH), % of homozygosis (FSNP), and inbreeding coefficient (Fx). Further, Runs of Homozygosity (ROH) segments conserved among the animals were investigated to identify possible regions associated with the breed characteristics. Our results indicate that even the Indubrasil breed having a small effective population size, the levels of homozygosity (FROH = 0.046) are still small. This was possibly caused by the cross conducted among different breeds for its development. It suggests no immediate risks associated with loss of genetic variation. This information might be used in breeding programs, for the breed conservation and for the expansion of the Indubrasil breed.
Palavras-Chave: | Genetic diversity; Indubrasil; SNPs.
Thesaurus Nal: | Inbreeding; Pedigree.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/188795/1/Artigo-VetSciences-Panetto-Genetic.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (24345-1) - UPC - AP - DD -  -  -  - DIS