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Big Cattle: The Genes That Determine Carcass Weight

Date:
August 5, 2009
Source:
BioMed Central
Summary:
An area of chromosome 6 that affects cattle carcass weight has been identified using two different Japanese breeds. Knowledge of this four-gene region should be useful in breeding beef cattle.

An area of chromosome 6 that affects cattle carcass weight has been identified. Knowledge of this four-gene region should be useful in breeding beef cattle.
Credit: iStockphoto/Igotz Ziarreta Barrena

An area of chromosome 6 that affects cattle carcass weight has been identified using two different Japanese breeds. Knowledge of this four-gene region should be useful in breeding beef cattle.

Akiko Takasuga, from the Shirakawa Institute of Animal Genetics, led a team of researchers who studied Japanese Black and Japanese Brown cattle, two breeds that have survived separately for thousands of years. According to Takasuga, "The 591-kb critical region contains four genes, LOC523874, C6H4orf30, NCAPG, and LOC540095. Interestingly, LOC540095 is the bovine ortholog of the human gene LCORL, and the NCAPG-LCORL region was recently identified as one determinant of human adult height".

The researchers have named the size-determining region CW-2 and have found a single nucleotide polymorphism which can be used as a positional candidate of CW-2 for marker-assisted selection. Takasuga said, "The CW-2 genotype explains a large portion of phenotypic variance. It may be widely distributed among European cattle breeds and not yet be fixed. Selection for this genotype should accelerate the breeding of meatier cattle".


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The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kouji Setoguchi, Masako Furuta, Takashi Hirano, Tomoko Nagao, Toshio Watanabe, Yoshikazu Sugimoto and Akiko Takasuga. Cross-breed comparisons identified a critical 591-kb region for bovine carcass weight QTL (CW-2) on chromosome 6 and the Ile-442-Met substitution in NCAPG as a positional candidate. BMC Genetics, (in press) [link]

Cite This Page:

BioMed Central. "Big Cattle: The Genes That Determine Carcass Weight." ScienceDaily. ScienceDaily, 5 August 2009. <www.sciencedaily.com/releases/2009/08/090803193649.htm>.
BioMed Central. (2009, August 5). Big Cattle: The Genes That Determine Carcass Weight. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2009/08/090803193649.htm
BioMed Central. "Big Cattle: The Genes That Determine Carcass Weight." ScienceDaily. www.sciencedaily.com/releases/2009/08/090803193649.htm (accessed September 17, 2014).

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