Histology, physiology, and transcriptomic and metabolomic profiling reveal the developmental dynamics of annual shoots in tree peonies (Paeonia suffruticosa Andr.)
作者机构：State Key Laboratory of Plant Diversity and Specialty CropsInstitute of BotanyChinese Academy of SciencesBeijing 100093China China National Botanical GardenBeijing 100093China University of Chinese Academy of SciencesBeijing 100049China Photosynthesis Research CenterKey Laboratory of PhotobiologyInstitute of BotanyChinese Academy of SciencesBeijing 100093China
出 版 物：《Horticulture Research》 (园艺研究（英文）)
年 卷 期：2023年第10卷第9期
页 面：68-84页
核心收录：
学科分类：090706[农学-园林植物与观赏园艺] 0907[农学-林学] 09[农学]
主 题：harvesting annual dynamics
摘 要：The development of tree peony annual shoots is characterized by“withering,which is related to whether there are bud points in the leaf axillaries of annual ***,the mechanism of“witheringin tree peony is still *** this study,Paeonia ostii‘Fengdan’and ***‘Luoyanghong’were used to investigate dynamic changes of annual shoots through anatomy,physiology,transcriptome,and *** results demonstrated that the developmental dynamics of annual shoots of the two cultivars were *** withering degree of ***‘Luoyanghong’was higher than that of ***‘Fengdan’,and their upper internodes of annual flowering shoots had a lower degree of lignin deposition,cellulose,C/N ratio,showing no obvious sclerenchyma,than the bottom ones and the whole internodes of vegetative shoot,which resulted in the“witheringof upper internodes.A total of 36 phytohormone metabolites were detected,of which 33 and 31 were detected in ***‘Fengdan’and ***‘Luoyanghong’,*** addition,302 and 240 differentially expressed genes related to lignin biosynthesis,carbon and nitrogen metabolism,plant hormone signal transduction,and zeatin biosynthesis were screened from the two ***,36 structural genes and 40 transcription factors associated with the development of annual shoots were highly co-expressed,and eight hub genes involved in this developmental process were ***,this study explained the developmental dynamic on the varied annual shoots through multi-omics,providing a theoretical foundation for germplasm innovation and the mechanized harvesting of tree peony annual shoots.
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