文献类型：期刊文献

英文题名：The Diesel Tree Sindora glabra Genome Provides Insights Into the Evolution of Oleoresin Biosynthesis

作者：Yu, Niu[1] Sun, Haixi[2] Yang, Jinchang[1] Li, Rongsheng[1]

第一作者：余纽

通信作者：Yu, N[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, State Key Lab Tree Genet & Breeding, Guangzhou, Peoples R China;[2]Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China

年份：2022

卷号：12

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-85123219790);WOS:【SCI-EXPANDED(收录号:WOS:000745156000001)】；

基金：Funding This work was supported by Guangdong Provincial Natural Science Foundation under grant numbers 2021A1515012196 and 2019A1515012106, and Guangzhou Basic and Applied Basic Research Foundation under grant number 202002030318.

语种：英文

外文关键词：genome evolution; oleoresin; terpene biosynthesis; plant defense; Sindora glabra

摘要：Sindora glabra is an economically important tree that produces abundant oleoresin in the trunk. Here, we present a high-quality chromosome-scale assembly of S. glabra genome by combining Illumina HiSeq, Pacific Biosciences sequencing, and Hi-C technologies. The size of S. glabra genome was 1.11 Gb, with a contig N50 of 1.27 Mb and 31,944 predicted genes. This is the first sequenced genome of the subfamily Caesalpinioideae. As a sister taxon to Papilionoideae, S. glabra underwent an ancient genome triplication shared by core eudicots and further whole-genome duplication shared by early-legume in the last 73.3 million years. S. glabra harbors specific genes and expanded genes largely involved in stress responses and biosynthesis of secondary metabolites. Moreover, 59 terpene backbone biosynthesis genes and 64 terpene synthase genes were identified, which together with co-expressed transcription factors could contribute to the diversity and specificity of terpene compounds and high terpene content in S. glabra stem. In addition, 63 disease resistance NBS-LRR genes were found to be unique in S. glabra genome and their expression levels were correlated with the accumulation of terpene profiles, suggesting potential defense function of terpenes in S. glabra. These together provide new resources for understanding genome evolution and oleoresin production.