Data/hora: 14/06/2024 14:41:05

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 20/02/2013
Data da última atualização: | 01/06/2022
Autoria: | TEIXEIRA NETO, M. R.; CRUZ, J. F. da; RAMOS, A. A.; CARNEIRO, P. L. S.; AZEVEDO, D. M. M. R.; BOZZI, R.; MALHADO, C. H. M.
Afiliação: | MILTON REZENDE TEIXEIRA NETO, UESB; JURANDIR FERREIRA DA CRUZ, UESB; ALCIDES AMORIM RAMOS, UNESP, Botucatu, SP, Brasil; PAULO LUIZ SOUZA CARNEIRO, UESB; DANIELLE MARIA MACHADO R AZEVEDO, CPAMN; RICCARDO BOZZI, UNIVERSITÀ DEGLI STUDI DI FIRENZE. VIA DELLE CASCINE, FIRENZE, ITALY; CARLOS HENRIQUE MENDES MALHADO, UESB.
Título: | Genetic variability in Mediterranean buffalos evaluated by pedigree analysis.
Título original: | Variabilidade genética na raça bubalina Mediterrânea avaliada por meio de análise de pedigree.
Ano de publicação: | 2012
Fonte/Imprenta: | Ciência Rural, Santa Maria, v. 42, n. 11, p. 2037-2042, nov. 2012.
ISSN: | 0103-8478
Idioma: | Inglês
Conteúdo: | The objective of this research was to study the population genetic structure of four herds of Mediterranean buffaloes in Brazil. It was used pedigree data from 6,588 buffaloes of Mediterranean breed born from 1980 to 2002. Of the total number of animals studied, 60.5, 15.3 and 2.1% had a pedigree in the first, second and third ascendancy, respectively. The effective number of herds that provided breeding males was 1.60 for parents, 1.16 for grandparents and 1.00 for greatgrandparents. There were 923 founder animals and only 71 effective founders. The effective number of ancestors explaining the genetic variability of the population was 71 and only 30 ancestors accounted for 50% of the genetic variability of the population. The average relatedness coefficient (AR) between individuals and inbreeding (F) of the population were estimated at 0.37 and 0.34% respectively. The average estimate of generation interval was 8.71±2.85 years. The variability of the current population is the result of a few ancestors, who are mostly also founders showing that the population was developed from a narrow genetic base which characterizes the occurrence of founder effect.
Palavras-Chave: | Ancestrais; Estrutura genética populacional; Fundadores.
Thesagro: | Bubalus Bubalis; Endogamia.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/76770/1/BubalinoDanielle.pdf
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (28109-1) - UPC - AP - PP - S 14/13 -  - 2013.00014 - DIS