Genome-wide identification of tea plant (Camellia sinensis) BAHD acyltransferases reveals their role in response to herbivorous pests

• DOI: 10.1186/s12870-024-04867-2
• Publication Date: 2024-04-01T15:01:52Z
• Authors: Dahe Qiao; Chun Yang; Xiaozeng Mi; Mengsha Tang; Sihui Liang; Zhengwu Chen
• Keywords: Biotic stress

Abstract Background BAHD acyltransferases are among the largest metabolic protein domain families in genomes of terrestrial plants and play important roles plant growth development, aroma formation, biotic abiotic stress responses. Little is known about BAHDs tea plant, a cash crop rich secondary metabolites. Results In this study, 112 genes ( CsBAHD01 - CsBAHD112 ) were identified from genome, with 85% (98/112) unevenly distributed across 15 chromosomes. The number gene family members has significantly expanded wild to assamica type sinensis type. Phylogenetic analysis showed that they could be classified into seven subgroups. Promoter cis -acting element revealed contain large light, phytohormones, stress-responsive elements. Many displayed tissue-specific expression patterns. CsBAHD05 was expressed at more than 500-fold higher levels purple leaves green leaves. exhibiting most significant response MeJA treatment feeding by herbivorous pests primarily concentrated subgroups 5 6. 23 these two different time points after leafhoppers geometrids examined via qPCR, results CsBAHD93 , CsBAHD94 CsBAHD95 induced subjected both pricking chewing pests. Moreover, based on transcriptome data for being fed pests, transcriptional regulatory network transcription factor coexpressed constructed. Conclusions Our study provides new insights role defense plants, will facilitate in-depth studies molecular function resistance