Scholarship 15/02601-7 - Bovinos de corte - BV FAPESP
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Study of admixture level in Canchim breed and ma genetic group animals using high-density single nucleotide polymorphism markers

Grant number: 15/02601-7
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Start date until: April 20, 2015
End date until: October 23, 2015
Field of knowledge:Agronomical Sciences - Animal Husbandry - Genetics and Improvement of Domestic Animals
Principal Investigator:Danísio Prado Munari
Grantee:Marcos Eli Buzanskas
Supervisor: Flavio S. Schenkel
Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Institution abroad: University of Guelph, Canada  
Associated to the scholarship:13/19335-2 - Study of admixture level in Canchim breed and ma genetic group animals using high density single nucleotide polymorphism markers, BP.PD

Abstract

Technologies for genome sequencing jointly with statistical methodologies have increasingly contributed in the application of genomic tools for animal production and have become useful in studies of biological processes and pathways, as well as for direct application in animal breeding through genomic selection. Currently in Brazil, beef cattle have a wide variety of specialized breeds for meat production. Factors such as the constant improvement of the genetic potential of livestock, whether it is through selection and crossbreeding, were essential for the progress in livestock productivity. The development of synthetic breeds in Brazil, from crosses between genera Bos taurus indicus (zebu) and Bos taurus taurus (taurine), is very useful when it is desired to combine the fitness of zebu animals with high carcass yield and precocity of taurine animals. In this context, the Canchim breed, which has genetic proportion of approximately 62.50% Charolais and 37.70% zebu (mainly, Nellore breed), have been the focus of several studies, considering that this breed has a high carcass quality and adaptability to extensive production system. Thus, the objective of this research project is to estimate admixture levels in Canchim animals and MA genetic group (approximately 65.60% Charolais and 34.40% Zebu) by verifying the contribution of the "purebreds" Charolais and Nellore breeds. All animals were genotyped with high-density SNP panels (single nucleotide polymorphisms) and data will be analyzed by means of different statistical methodologies. (AU)

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