The Jasmine (Jasminum sambac) Genome Provides Insight into the Biosynthesis of Flower Fragrances and Jasmonates

被引：20

作者：

Chen, Gang ^{[1
,2
]}

Mostafa, Salma ^{[1
,3
]}

Lu, Zhaogeng ^{[1
,4
]}

Du, Ran ^{[5
]}

Cui, Jiawen ^{[1
]}

Wang, Yun ^{[1
]}

Liao, Qinggang ^{[5
]}

Lu, Jinkai ^{[1
]}

Mao, Xinyu ^{[1
]}

Chang, Bang ^{[1
]}

Gan, Quan ^{[1
]}

Wang, Li ^{[1
]}

Jia, Zhichao ^{[1
]}

Yang, Xiulian ^{[6
]}

Zhu, Yingfang ^{[7
]}

Yan, Jianbin ^{[5
]}

Jin, Biao ^{[1
,4
]}

机构：

[1] Yangzhou Univ, Coll Hort & Plant Protect, Yangzhou 225009, Peoples R China

[2] Yangzhou Univ, Coll Biosci & Biotechnol, Yangzhou 225009, Peoples R China

[3] Alexandria Univ, Fac Agr, Dept Floriculture, Alexandria 21526, Egypt

[4] Yangzhou Univ, Key Lab Plant Funct Genom, Minist Educ, Yangzhou 225009, Peoples R China

[5] Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr,Key Lab Synthet B, Shenzhen, Peoples R China

[6] Nanjing Forestry Univ, Coll Landscape Architecture, Nanjing 210037, Peoples R China

[7] Henan Univ, Inst Plant Stress Biol, Dept Biol, State Key Lab Cotton Biol, Kaifeng 475001, Peoples R China

来源：

GENOMICS PROTEOMICS & BIOINFORMATICS | 2023年 / 21卷 / 01期

关键词：

Jasmine flower; Jasminum sambac; Genome; Jasmonate; Flower fragrance; FLORAL SCENT; IDENTIFICATION; EVOLUTION; QUANTIFICATION; ARABIDOPSIS; ALIGNMENT; GENES; METABOLISM; PREDICTION; VOLATILES;

D O I：

10.1016/j.gpb.2022.12.005

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Jasminum sambac (jasmine flower), a world-renowned plant appreciated for its excep-tional flower fragrance, is of cultural and economic importance. However, the genetic basis of its fragrance is largely unknown. Here, we present the first de novo genome assembly of J. sambac with 550.12 Mb (scaffold N50 = 40.10 Mb) assembled into 13 pseudochromosomes. Terpene synthase (TPS) genes associated with flower fragrance are considerably amplified in the form of gene clusters through tandem duplications in the genome. Gene clusters within the salicylic acid/benzoic acid/theobromine (SABATH) and benzylalcohol O-acetyltransferase/anthocyanin O-hydroxycinnamoyltransferases/anthranilate N-hydroxycinnamoyl/benzoyltransferase/deacetyl-vindoline 4-O-acetyltransferase (BAHD) superfamilies were identified to be related to the biosyn-thesis of phenylpropanoid/benzenoid compounds. Several key genes involved in jasmonate biosyn-thesis were duplicated, causing an increase in copy numbers. In addition, multi-omics analyses identified various aromatic compounds and many genes involved in fragrance biosynthesis path-ways. Furthermore, the roles of JsTPS3 in b-ocimene biosynthesis, as well as JsAOC1 and JsAOS in jasmonic acid biosynthesis, were functionally validated. The genome assembled in this study for J. sambac offers a basic genetic resource for studying floral scent and jasmonate biosynthesis, and provides a foundation for functional genomic research and variety improvements in Jasminum.

引用

页码：127 / 149

页数：23

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