Abstract

The basic helix–loop–helix (bHLH) transcription factors are involved in several biological processes both in plant development and stress responses. Agarwood, a major active and economical product, is only induced and accumulated when the roots, stems, or branches are wounded in Aquilaria sinensis. Although genome-wide comprehensive analyses of the bHLH family have been identified in many plants, no systematic study of the genes in this family has been conducted in A. sinensis. In this study, 105 bHLH genes were identified in A. sinensis through genome-wide analysis and named according to their chromosomal locations. Based on a phylogenetic tree, AsbHLH family proteins were classified into 18 subfamilies. Most of them were distributed on eight chromosomes, with the exception of two genes. Based on the tissue-specific expression characteristics and expression patterns in response to methyl jasmonate (MeJA) treatment, seven AsbHLH genes were likely involved in wound-induced agarwood formation. The results provide comprehensive information on AsbHLHs that can be used to elucidate the molecular functions and physiological roles of these proteins in A. sinensis.

Details

Title
Genome-wide analysis of basic helix–loop–helix (bHLH) transcription factors in Aquilaria sinensis
Author
Pei-Wen, Sun 1 ; Zhi-Hui, Gao 1 ; Fei-Fei, Lv 2 ; Cui-Cui, Yu 1 ; Jin, Yue 1 ; Yan-Hong, Xu 1 ; Jian-He, Wei 3 

 Chinese Academy of Medical Sciences and Peking Union Medical College, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Beijing, China (GRID:grid.506261.6) (ISNI:0000 0001 0706 7839) 
 Chinese Academy of Medical Sciences and Peking Union Medical College, Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine and Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Haikou, China (GRID:grid.506261.6) (ISNI:0000 0001 0706 7839) 
 Chinese Academy of Medical Sciences and Peking Union Medical College, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Beijing, China (GRID:grid.506261.6) (ISNI:0000 0001 0706 7839); Chinese Academy of Medical Sciences and Peking Union Medical College, Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine and Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Haikou, China (GRID:grid.506261.6) (ISNI:0000 0001 0706 7839) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2658987129
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.