A splice mutation in the PHKG1 gene causes high glycogen content and low meat quality in pig skeletal muscle.

In the F 2 population, there was a tendency towards lower ultimate pH and higher drip loss in AA pigs with higher GP compared to CA and CC individuals (the mean values of pH 24h in AA , CA and CC groups were 5.70, 5.72 and 5.77, respectively; for drip loss: 1.01%, 0.85% and 0.92%, respectively), although the mean differences did not reach statistical significance, partially due to a low frequency (5%) of the AA genotype in the population.

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