|
KMID : 0613820150250010021
|
|
Journal of Life Science
2015 Volume.25 No. 1 p.21 ~ p.28
|
|
|
Effects of Genetic Polymorphisms of ADD1 Gene on Economic Traits in Hanwoo and Jeju Black Cattle-derived Commercial Populations in Jeju-do
|
|
Han Sang-Hyun
Oh Hong-Sik
Lee Jae-Bong
Jwa Eun-Sook
Kang Yong-Jun
Kim Sang-Geum
Yang Sung-Nyun
Kim Yoo-Kyung
Cho In-Cheol
Cho Won-Mo
Ko Moon-Suck
Baek Kwang-Soo
|
|
|
Abstract
|
|
|
|
Genetic polymorphisms of adipocyte determination and differentiation factor 1 (ADD1) gene were screened in Hanwoo and Jeju Black cattle-derived commercial (JBC-DC) populations. The ADD1 genotypes were determined using the presence/absence of 84-bp fragment at intron 7 region. The association of ADD1 genotypes for economic traits was examined in both populations. In the Hanwoo steers, ADD1 D/- carcasses showed significantly thicker backfat levels than those from WW (p<0.05). However, the thickest level of backfat appeared in WD heterozygotes, whereas thicker backfat did not appear in DD homozygotes in the JBC-DC population (p<0.05), leading to the supposition that synergic effects of alleles W and D increase backfat deposition. On the other hand, there was no association between the ADD1 genotypes and intramuscular fat deposition measured as meat quality index and marbling score. From these results, we concluded that the bovine ADD1 affected the backfat in subcutaneous tissue, rather than intramuscular fat in muscle tissue. In addition, the DD animals showed higher levels of meat color than those from W/- (p<0.05). Interestingly, a highly significant difference was found between the genotypes and carcass weights only in the JBC-DC population, and D/- animals were heavier by more than 38 kg than those from WW (p<0.001). The results of this study reveal faster growth rate and differences in steer productivity according to genotypes of the ADD1 gene. These findings demonstrate that ADD1 genotypes may effectively function as molecular genetic markers for the improvement of Hanwoo and Jeju Black cattle-related crossbreeding systems.
|
|
|
KEYWORD
|
|
|
ADD1 (adipocyte determination and differentiation factor 1), association, economic trait, Hanwoo, Jeju Black cattle
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|