1. Center of Biological and Health Sciences. Post-Graduation Program of Evolutionary Genetics and Molecular Biology, Federal University of São Carlos, São Carlos, SP, Brazil.
2. Embrapa Pecuária Sudeste, São Carlos, SP, Brazil.
3. Department of Animal Sciences, Auburn University, AL, USA.
4. Department of Animal Science, Iowa State University, Ames, IA, USA.
5. Department of Animal Science, University of São Paulo/ESALQ, Piracicaba, SP, Brazil.
6. Embrapa Informática Agropecuária, Campinas, SP, Brazil.