文献类型：期刊文献

英文题名：Integrated multi-omics analysis to elucidate the role of shikimic acid and phenethylamine in the effect of scions on rootstocks of Camellia oleifera

作者：Ge, Xiaoning[1,2] Zhong, Qiuping[2] Tan, Xinjian[2] Wang, Jinfeng[2] Cao, Linqing[2] Zhou, Youcheng[2] Zou, Yuling[2] Yuan, Yaqi[2] Wan, Xirui[2] Yan, Chao[2] Guo, Hongyan[2] Tian, Feng[2] Chen, Danyang[2] Chen, Zexin[2] Wang, Sen[1]

第一作者：Ge, Xiaoning;葛晓宁

通信作者：Wang, S[1];Zhong, QP[2]

机构：[1]Cent South Univ Forestry & Technol, Changsha 410004, Hunan, Peoples R China;[2]Chinese Acad Forestry, Expt Ctr Subtrop Forestry, Fenyi 336600, Jiangxi, Peoples R China

年份：2023

卷号：203

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20233114476578);Scopus(收录号：2-s2.0-85166226102);WOS:【SCI-EXPANDED(收录号:WOS:001052608500001)】；

基金：This study was supported by the Fundamental Research Funds of CAF (CAFYBB2022MA008) , the Belt and Road International Union Research Center for Tropical Arid Non-wood Forest in Hunan Province (2022WK2021) , and the special project of Camellia oleifera in Jiangxi Province (YCYJZX (2023) 114) .

语种：英文

外文关键词：Camellia oleifera; Grafting; Metabolome; Transcriptome; Shikimic acid; Phenethylamine

摘要：Camellia oleifera is an important industrial crop whose leaf, flower, pericarp, and seed have multiple application values. Grafting is the main means of C. oleifera propagation, and the quality of grafted seedlings is directly related to the propagation coefficient and yield promotion. However, the research on C. oleifera grafting is lacking, and there is little comprehensive understanding of the growth characteristics, metabolic patterns, and molecular mechanisms of different grafting combinations of C. oleifera. In this study, the phenotypic, metabolomic, and transcriptomic profiles of four grafting combinations [C. oleifera (Co), C. yuhsienensis (Cy), C. chekiangoleosa (Cc), and C. gigantocarpa (Cg) four kinds of scions grafted onto one rootstock, C. oleifera (Co)] were investigated. The phenotypic analysis showed that hetero-grafting inhibited the growth vigor of grafted unions. The abundance of shikimic acid and phenylethylamine in hetero-grafting was lower than in auto-grafting based on the differential metabolite analysis, and the exogenous addition of both metabolites promoted the growth of grafted unions. Multi-omics analysis revealed that hetero-grafting could significantly affect the differential expression of hub genes (aroD, aroE, aroK, pheA, tyrB) in the biosynthesis of shikimic acid and phenylethylamine and that AP2/ERF, MYB, and GRAS transcription factors were involved in regulating the expression of the above hub genes. These findings innovatively characterized the important role of shikimic acid and phenethylamine in the growth of C. oleifera grafted seedlings and provided new insights for promoting the propagation and industry development of C. oleifera.