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Yuanqiu Li,Chaobing Luo,Ying Chen,Ximeng Xiao,Chun Fu,Yaojun Yang 한국식물학회 2019 Journal of Plant Biology Vol.62 No.4
Bambusa emeiensis is one of the most economicallyimportant bamboos, yet the yield and quality of this bamboospecies continue to be challenged by insect herbivores. APETALA2/ethylene responsive factors (AP2/ERF) comprise alarge family of plant transcription factors regulating numerousbiological processes and playing critical roles in plantdefence responses. In the present study, 47 AP2/ERF genes wereidentified and classified in the B. emeiensis herbivore-inducedtranscriptome. Based on AP2 domain numbers, conservedamino-acid residues, motif analyses and phylogenetic trees andBeAP2/ERF proteins were grouped into four subfamilies,namely AP2, ERF, Dehydration-responsive-element-binding(DREB) and Soloist, and these subfamilies consisted of nine, 23,14 and 1 proteins, respectively. Amino-acid residue sequencesof the AP2 domain in B. emeiensis were conserved comparedwith those in Arabidopsis thaliana. Expression analyses revealedthat the treatment (herbivore damage) and control groupsexhibited different expression patterns, and majority of BeERF/DREB genes were significantly and differentially expressed inthe transcriptome, as verified using quantitative real-time PCR(qPCR). Finally, eight genes were selected for further PCRanalyses of tissue-specific expression, of which the four tissuesexhibited different expression patterns. Our data indicated thatthe genes encoding the ERF/DREB subfamily of B. emeiensisplay critical roles in its response to herbivores.