Abstract
Marbling is regarded as an economically important trait of beef cattle inJapan, and measured as a beef marbling score (BMS). Our previous study reported an association between a single nucleotide polymorphism (SNP), rs4164 8172, in the pancreatic lipase (PNLIP) gene and the BMS level, using the Japanese Black beef cattle population of Oita prefecture. Further, we showed that the T allele at the rs41648172 SNP is associated with a high level of the BMS. Thus, we suggested that the rs41648172 SNP seems to be a candidate marker for marker-assisted selection. Our present study was designed to investigate whether this association could be replicated in other independent Japanese Black cattle population and analyze the effect of the SNP genotypes on the carcass traits other than the BMS. We detected the marginally significant effect of the genotypes of the rs41648172 SNP on the BMS level by using the Japanese Black beef cattle population of Niigata prefecture (P = 0.0919), and obtained the result of the T allele associated with an increase in the BMS level, consistent with our previous data. In addition, we showed no significant association of the SNP with the subcutaneous fat thickness, carcass weight, rib eye area, rib thickness and yield estimate in the Japanese Black beef cattle population ofNiigataprefecture. Thus, we concluded that the rs41648172 SNP was useful for effective marker-assisted selection to increase the BMS level in Japanese Black beef cattle, based on the replicated association of the rs41648172 SNP with the BMS level in the other independent Japanese Black beef cattle population and no effect of the SNP genotypes on the carcass traits other than BMS.
Highlights
Intramuscular fat deposition measured as a beef marbling score (BMS) is one of the economically important traits of beef cattle [1]
We recently showed that a single nucleotide polymerphism (SNP), namely, rs41648172, in the pancreatic lipase (PNLIP) gene was associated with the BMS level in a Japanese Black beef cattle population in Oita prefecture, with the T allele of the SNP being associated with a highest level of the BMS [5]
The frequency of the T allele of rs41648172 SNP in the Niigata prefecture population was higher than the frequencies of this allele of Japanese Brown, Japanese Short Horn, Holstein, or Brown Swiss cattle populations that have not been strongly selected for high marbling [7], but lower than the frequency of this allele in Japanese Black cattle population of the Oita prefecture determined in our previous study [7]
Summary
Intramuscular fat deposition (marbling) measured as a beef marbling score (BMS) is one of the economically important traits of beef cattle [1]. A high level of the BMS enriches the taste and tenderness of beef, improving the palatability [2,3,4], the BMS affects the evaluation of beef quality [1]. It would be desirable to construct a more effective markerassisted breeding scheme for increasing the BMS level in Japanese Black beef cattle. We recently showed that a single nucleotide polymerphism (SNP), namely, rs41648172, in the pancreatic lipase (PNLIP) gene was associated with the BMS level in a Japanese Black beef cattle population in Oita prefecture, with the T allele of the SNP being associated with a highest level of the BMS [5]. Tanomura et al / Open Journal of Animal Sciences 3 (2013) 89-92 effects of the SNP genotypes on the carcass traits other than the BMS, in order to confirm the application of the rs41648172 SNP to effective marker-assisted selection
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
