Transcriptome-Wide Identification and Quantification of Caffeoylquinic Acid Biosynthesis Pathway and Prediction of Its Putative BAHDs Gene Complex in A. spathulifolius

The phenylpropanoid pathway is a major secondary metabolite that helps plants overcome biotic and abiotic stress produces various byproducts promote human health. Its byproduct caffeoylquinic acid soluble phenolic compound present in many angiosperms. Hydroxycinnamate-CoA shikimate/quinate transferase significant enzyme plays role accumulating CQA biosynthesis. This study analyzed transcriptome-wide identification of the to biosynthesis candidate genes A. spathulifolius flowers leaves. Transcriptomic analyses leaves showed differential expression PPP regulated unigenes. An analysis PPP-captive unigenes revealed duplication following genes: PAL, 120 76 flowers; C3?H, 169 140 4CL, 41 27 C4H, 12 4 flowers. phylogenetic 82 BAHDs superfamily members 72 flowers, among which five encode for HQT three HCT. are common both whereas two were specialized pattern synthesis was upregulated HCT expressed strongly spathulifolius. Overall, CAA show more As result, quantification indicates abundant caffeic