Genetic characterization of Latin-American Creole cattle using microsatellite markers

J. V. Delgado, A. M. Martínez, A. Acosta, L. A. Álvarez, E. Armstrong, E. Camacho, J. Cañõn, O. Cortés, S. Dunner, V. Landi, J. R. Marques, I. Martín-Burriel, O. R. Martínez, R. D. Martínez, L. Melucci, J. E. Muñoz, Cecilia Penedo, A. Postiglioni, J. Quirõz, C. RodellarP. Sponenberg, O. Uffo, R. Ulloa-Arvizu, J. L. Vega-Pla, A. Villalobos, D. Zambrano, P. Zaragoza, L. T. Gama, C. Ginja

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


Genetic diversity in and relationships among 26 Creole cattle breeds from 10 American countries were assessed using 19 microsatellites. Heterozygosities, F-statistics estimates, genetic distances, multivariate analyses and assignment tests were performed. The levels of within-breed diversity detected in Creole cattle were considerable and higher than those previously reported for European breeds, but similar to those found in other Latin American breeds. Differences among breeds accounted for 8.4% of the total genetic variability. Most breeds clustered separately when the number of pre-defined populations was 21 (the most probable K value), with the exception of some closely related breeds that shared the same cluster and others that were admixed. Despite the high genetic diversity detected, significant inbreeding was also observed within some breeds, and heterozygote excess was detected in others. These results indicate that Creoles represent important reservoirs of cattle genetic diversity and that appropriate conservation measures should be implemented for these native breeds in order to minimize inbreeding and uncontrolled crossbreeding.

Original languageEnglish (US)
Pages (from-to)2-10
Number of pages9
JournalAnimal Genetics
Issue number1
StatePublished - Feb 1 2012


  • admixture
  • biodiversity
  • DNA markers
  • genetic diversity
  • genetic structure

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Genetics


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