文献类型：期刊文献

英文题名：The updated weeping forsythia genome reveals the genomic basis for the evolution and the forsythin and forsythoside A biosynthesis

作者：Li, Yong[1] Wang, Fan[1] Pei, Nancai[2] Li, Qian[1] Liu, Hongli[1] Yuan, Wangjun[3] Zhang, Hechen[4]

第一作者：Li, Yong

通信作者：Pei, NC[1]

机构：[1]Henan Agr Univ, Coll Landscape & Art, Innovat Platform Mol Biol, Zhengzhou 450002, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[3]Henan Univ, Sch Pharm, Kaifeng 475000, Henan, Peoples R China;[4]Henan Acad Agr Sci, Hort Res Inst, Zhengzhou 450002, Peoples R China

年份：2023

卷号：9

期号：6

起止页码：1149-1161

外文期刊名：HORTICULTURAL PLANT JOURNAL

收录：;Scopus(收录号：2-s2.0-85139188566);WOS:【SCI-EXPANDED(收录号:WOS:001107463900001)】；

基金：Acknowledgments This work was supported by the Open Fund of State Key Laboratory of Tree Genetics and Breeding (Chinese Academy of Forestry) (Grant No. TGB2021004) , National Natural Science Foundation of China (Grant Nos. 31770225, 31570594) , and Pro-gram of Guangzhou Municipal Science and Technology Bureau (Grant No. 202102021257) .

语种：英文

外文关键词：Forsythia suspensa; Chromosome-level genome; Comparative genomics; Forsythoside A; Forsythin; Whole-genome duplication

摘要：Weeping forsythia (Forsythia suspensa, Oleaceae) is a deciduous broad-leaved tree species distributed in the warm temperate zone of China. However, the species still lacks a chromosome-level genome. In this study, the former draft genome (Accession No. WIPI00000000) of weeping forsythia was assembled into 14 chromosomes with a 712.9 Mb genome size. Weeping forsythia underwent a and b whole-genome duplication events. After the divergence between weeping forsythia and Olea europaea, 1 453 gene families had a significant expansion, and 1 146 gene families had a significant contraction. The enrichment pathways and ontologies of expanded genes suggested that the tillering, photosynthesis and growth capacity of weeping forsythia were enhanced after the divergence of weeping forsythia and O. europaea. The contracted genes suggested that the resistance of weeping forsythia to cold and drought was weakened. The last glacial period led to a significant decline in the effective population size of weeping forsythia. Forty-six candidate genes were identified for the synthesis of the forsythin and forsythoside A by genomic and transcriptomic data. In this study, we improved the previous draft genome of weeping forsythia. Our genome will provide genomic resources for the subsequent evolution and breeding research of weeping forsythia.