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Association between copy number variation regions and meat tenderness in Nelore cattle
Tuesday, August 19, 2014
Posters (The Westin Bayshore)
Mariana P Berton
,
State University of São Paulo, Faculty of Agriculture and Veterinary Sciences, Jaboticabal, São Paulo, Brazil, Jaboticabal, Brazil, Jaboticabal, Brazil
Marcos V.A. Lemos
,
Universidade Estadual Paulista “Júlio de Mesquita Filho”- UNESP, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, Brazil
Carolyn Aboujaoude
,
Universidade Estadual Paulista “Júlio de Mesquita Filho”- UNESP, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, Brazil
Gregorio MF de Camargo
,
State University of São Paulo, Faculty of Agriculture and Veterinary Sciences, Jaboticabal, Brazil
Luis Arthur L Chardola
,
State University of São Paulo, Botucatu, São Paulo, Brazil, Botucatu, Brazil
Lucia Galvão Albuquerque
,
State University of São Paulo, Faculty of Agriculture and Veterinary Sciences, Jaboticabal, Brazil
Fernando Baldi
,
Universidade Estadual Paulista “Júlio de Mesquita Filho”- UNESP, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, Brazil
Abstract Text:
The present study aimed to analyze the association between copy number variation regions (CNVRs) and tenderness in 737 Nellore male cattle. The animals were finished in feetlot and slaughtered at approximately two years of age. Meat tenderness was analyzed in the Longissimus dorsi muscle. Samples with call rates below 90% were excluded. The PennCNV and CNVruler software were used to identify and link the CNVR with tenderness. The Log R Ratio (LRR) and B Allele Frequency (BAF) parameters were used to estimate the copy number variations (CNVs). A total of 4504 CNVRs were identified, with a mean length size of 36.59 kb. Only 10 CNVRs have MAF greater than 0.05%, where 2 CNVRs were significant associated (P<0.05) with meat tenderness. Meat tenderness must be improved in Zebu cattle, and CNVRs is a tool that can be used.
Keywords:
Chromosomal region
CNVR
Shear force
