Animal genetic resources

Genetic diversity and population structure of different varieties of Morada Nova hair sheep from Brazil

J. S. B. Ferreira, Paiva, S. R., Silva, E. C., McManus, C. M., Caetano, A. R., Façanha, D. A. E., and de Sousa, M. A. N., Genetic diversity and population structure of different varieties of Morada Nova hair sheep from Brazil, vol. 13, pp. 2480-2490, 2014.

The aim of this study was to analyze genetic diversity and population structure among varieties of White (N = 40), Red (N = 32), and Black (N = 31) Morada Nova hair sheep from flocks in the northeastern Brazilian semiarid region. Fifteen nuclear microsatellite markers and two regions of mitochondrial DNA were used. The intra-population analysis demonstrated that the White variety had higher diversity, while the Red variety had the lowest values.

Genetic variability in local Brazilian horse lines using microsatellite markers

A. C. M. Silva, Paiva, S. R., Albuquerque, M. S. M., Egito, A. A., Santos, S. A., Lima, F. C., Castro, S. T., Mariante, A. S., Correa, P. S., and McManus, C. M., Genetic variability in local Brazilian horse lines using microsatellite markers, vol. 11, pp. 881-890, 2012.

Genetic variability at 11 microsatellite markers was analyzed in five naturalized/local Brazilian horse breeds or genetic groups. Blood samples were collected from 328 animals of the breeds Campeira (Santa Catarina State), Lavradeira (Roraima State), Pantaneira (Pantanal Mato-Grossense), Mangalarga Marchador (Minas Gerais State), as well as the genetic group Baixadeiro (Maranhão State), and the exotic breeds English Thoroughbred and Arab.

Genetic diversity and assessment of 23 microsatellite markers for parentage testing of Santa Inês hair sheep in Brazil

C. A. Souza, Paiva, S. R., McManus, C. M., Azevedo, H. C., Mariante, A. S., and Grattapaglia, D., Genetic diversity and assessment of 23 microsatellite markers for parentage testing of Santa Inês hair sheep in Brazil, vol. 11, pp. 1217-1229, 2012.

Santa Inês is the most common hair sheep breed in Brazil and probably has the highest genetic diversity among sheep breeds in this country. Successful breeding programs for Brazilian sheep breeds are not common for various reasons, including a lack of control of parentage in the flocks. We developed an allele frequency database for 23 STR loci for the Santa Inês breed based on 285 animals sampled from five populations distributed across the central-western and north-eastern regions of Brazil.

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