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KMID : 0613820210310070626
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Journal of Life Science
2021 Volume.31 No. 7 p.626 ~ p.630
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Association Analysis of the 6-bp Deletion Variant of the MYH3 Gene with Meat Color Traits in Crossbred (Landrace x Jeju Native Black Pig) Pigs
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Kang Yong-Jun
Kim Sang-Geum
Kim Su-Yeon
Kim Min-Ji
Kim Hyeon-Ah
Yoo Ji-Hyun
Shin Moon-Cheol
Yang Byoung-Chul
Cho In-Cheol
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Abstract
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This study was conducted to examine the association between the myosin heavy chain 3 (MYH3) in 6-bp deletion variant genotypes and meat color traits in a crossbred pig population Landrace and Jeju native black pigs (JNBP). The longissimus dorsi, semimembranosus, triceps brachii and biceps femoris muscle from each carcass were used for the analysis of meat color traits. A total of 187 pigs and three meat color traits, CIE L* (lightness), CIE a* (redness), and CIE b* (yellowness), were analyzed. All experimental pigs were successfully genotyped for the MYH3 6-bp deletion variant using Polymerase chain reaction (PCR) analysis. We detected three MYH3 6-bp deletion variant genotypes qq, Qq, and QQ with 0.091, 0.551 and 0.358 genotype frequencies, respectively. Compared to qq homozygotes, the MYH3 6-bp deletion QQ genotype animals showed a higher levels of the meat colors traits CIE L* (lightness), CIE a* (redness), and CIE b* (yellowness) in longissimus dorsi (p>0.05, p<0.001, p<0.001), semimembranosus (p>0.05, p<0.001, p<0.001), triceps brachii (p<0.001, p<0.001, p<0.001), and biceps femoris (p<0.01, p<0.001, p<0.001), respectively. The QQ genotype pigs was associated with increasing meat color traits in the crossbred between Landrace and JNBP. Our findings suggest that the MYH3 6-bp deletion variant genotypes can be used as valuable genetic markers for JNBP-related breeding programs to improve meat quality and control meat color traits.
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KEYWORD
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Association, genotypes, Jeju native pig, meat color, MYH3
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