Identification of genes associated with soluble sugar and organic acid accumulation in ‘Huapi’ kumquat (<i>Fortunella crassifolia</i> Swingle) via transcriptome analysis

Abstract

The high sugar accumulation in HP fruit was associated with up-regulation of SUS, SPS, TST, STP and ERD6L genes. The PEPCK, PEPC, NAD-MDH, NADP-IDH, GS and FBPase genes played important roles in acid synthesis and degradation in HP kumquat. These findings provide further insight into understanding the mechanisms underlying metabolism of sugars and organic acids in citrus. © 2021 Society of Chemical Industry.