The association between polymorphism of PKM2 gene and glycolytic potential and pork meat quality.
The association between polymorphism of PKM2 gene and glycolytic potential and pork meat quality.
复制标题
DOI：
10.1016/j.meatsci.2009.08.045
复制
发表时间：
2010
期刊：
影响因子：
7.1
通讯作者：
H. Sieczkowska;M. Koćwin-Podsiadła;A. Zybert;E. Krzęcio;K. Antosik;S. Kamiński;E. Wójcik
中科院分区：
文献类型：
--
作者：
H. Sieczkowska;M. Koćwin-Podsiadła;A. Zybert;E. Krzęcio;K. Antosik;S. Kamiński;E. Wójcik
本研究的目的是探讨 PKM2 基因与三组育肥猪（长白猪、长白×约克夏猪和（长白×约克夏）×杜洛克）的糖酵解潜力和肉品质性状的关联。本研究对 243 头不含 RYR1T 基因的育肥猪进行，其中 95 头为长白品种，其余为以下杂交：66 头长白×约克夏和 82 头（长白×约克夏）×杜洛克。据称，PKM2 基因（独立于品种）与 GP、乳酸含量、R1 指标、pH 值和滴水损失显着相关。 TT基因型的存在可能导致GP和乳酸含量增加，导致屠宰后96和144小时pH24和pH144较低以及测得的滴水损失较大。除地方品种育肥猪外，PKM2基因与糖原含量的关联尚未得到统计学证实。统计证实的相互作用表明，PKM2 基因与糖酵解潜力和糖原含量的关联主要涉及长白猪。此外，PKM2 基因的基因型与 RN-表型的高度一致性（几乎 89%）可以作为支持该论文的额外论据。
The objective of this study was to investigate the association of PKM2 gene with glycolytic potential and meat quality traits in three groups of fatteners – Landrace, Landrace×Yorkshire and (Landrace×Yorkshire)×Duroc. The present study was conducted on 243 fatteners, free of RYR1Tgene, which 95 were of Landrace breed and the rest were the following crosses: 66 – Landrace×Yorkshire and 82 (Landrace×Yorkshire)×Duroc. It has been stated, that PKM2 gene (independently from the breed) was significantly associated with GP, lactate content, R1indicator, pH and drip loss. The presence of TT genotype may lead to increase of GP and lactate content and results in low pH24and pH144and bigger drip loss measured 96 and 144h after the slaughter. Except for the landrace fatteners, the association of the PKM2 gene with the glycogen content has not been statistically confirmed. Statistically confirmed interaction shows, that the association of PKM2 gene with glycolytic potential and glycogen content concerns mainly the Landrace pigs. Moreover, a high (almost 89%) conformability of the genotype of PKM2 gene with the RN−phenotype, can serve as an additional argument in favour of the thesis.