A single nucleotide polymorphism in CAPN1 associated with marbling score in Korean cattle
Genetic improvement has long been considered an important factor in the competitiveness of beef cattle production. Identification of the genes and/or polymorphisms underlying quantitative/qualitative traits, and an understanding of how these genes/polymorphisms interact with the environment or with other genes affecting economic traits might be the keys to successful application of marker-assisted selection in the commercial animal population. As one of these economic traits, marbling is intramuscular fat that gives meat flavor and tenderness. Thus, an increase in the degree of marbling raises the level of meat quality. Calpain is a ubiquitous cytoplasmic cysteine protease, the activity of which is absolutely dependent on calcium. Two genes of calpain (CAPN1 [macro-calpain] and CAPN2 [mili-calpain]) have been identified.CAPN1 degrades myofibrillar proteins under postmortem conditions and appears to be the primary enzyme in the postmortem tenderization process. Regulation of CAPN1 activity has been correlated with variation in meat tenderness, and previous studies also identified a quantitative trait locus influencing meat tenderness on chromosome 29 where CAPN1 lies.In the CAPN1 gene, more than 100 single nucleotide polymorphisms (SNPs) have been identified inBos indicus or Bos taurus (S. N. White and T. Smith, unpublished data). Among them, four polymorphisms, two non-synonymous SNPs (G316A and V530I), and two intronic SNPs (C4685T and C4751T) have been found to have significant effects on meat tenderness.Association studies of SNPs in CAPN1 with carcass traits have been performed, but there is no publicly available evaluation of the association of these SNPs in Korean cattle (Bos taurus coreanae, also known as Hanwoo). Thus, the objective of this study was to discover polymorphisms and assess the association, including that of reported SNPs, in Korean cattle.
โพลิมอร์ฟิซึมนิวคลีโอไทด์หนึ่งใน CAPN1 ที่เกี่ยวข้องกับคะแนน marbling วัวเกาหลี Genetic improvement has long been considered an important factor in the competitiveness of beef cattle production. Identification of the genes and/or polymorphisms underlying quantitative/qualitative traits, and an understanding of how these genes/polymorphisms interact with the environment or with other genes affecting economic traits might be the keys to successful application of marker-assisted selection in the commercial animal population. As one of these economic traits, marbling is intramuscular fat that gives meat flavor and tenderness. Thus, an increase in the degree of marbling raises the level of meat quality. Calpain is a ubiquitous cytoplasmic cysteine protease, the activity of which is absolutely dependent on calcium. Two genes of calpain (CAPN1 [macro-calpain] and CAPN2 [mili-calpain]) have been identified.CAPN1 degrades myofibrillar proteins under postmortem conditions and appears to be the primary enzyme in the postmortem tenderization process. Regulation of CAPN1 activity has been correlated with variation in meat tenderness, and previous studies also identified a quantitative trait locus influencing meat tenderness on chromosome 29 where CAPN1 lies.In the CAPN1 gene, more than 100 single nucleotide polymorphisms (SNPs) have been identified inBos indicus or Bos taurus (S. N. White and T. Smith, unpublished data). Among them, four polymorphisms, two non-synonymous SNPs (G316A and V530I), and two intronic SNPs (C4685T and C4751T) have been found to have significant effects on meat tenderness.Association studies of SNPs in CAPN1 with carcass traits have been performed, but there is no publicly available evaluation of the association of these SNPs in Korean cattle (Bos taurus coreanae, also known as Hanwoo). Thus, the objective of this study was to discover polymorphisms and assess the association, including that of reported SNPs, in Korean cattle.
การแปล กรุณารอสักครู่..
