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Transcriptome Sequencing of Agave angustifolia Reveals Conservation and Diversification in the Expression of Cinnamyl Alcohol Dehydrogenase Genes in Agave Species

文献类型： 外文期刊

作者： Huang, Xing 1 ; Xu, Bochao 2 ; Tan, Shibei 1 ; Huang, Yanlei 3 ; Xi, Jingen 1 ; Qin, Xu 4 ; Chen, Tao 4 ; Chen, Helong 1 ; Yang, Xiaohan 5 ; Yi, Kexian 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China

2.Hainan Univ, Sch Life Sci, Haikou 570228, Hainan, Peoples R China

3.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Hubei, Peoples R China

4.Guangxi Subtrop Crops Res Inst, Nanning 530001, Peoples R China

5.Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA

6.Minist Agr & Rural Affairs, Key Lab Integrated Pest Management Trop Crops, Haikou 571101, Hainan, Peoples R China

7.Minist Agr & Rural Affairs, Key Lab Low Carbon Green Agr Trop China, Haikou 571101, Hainan, Peoples R China

8.Hainan Key Lab Monitoring & Control Trop Agr Pest, Haikou 571101, Hainan, Peoples R China

关键词： transcriptome; Agave angustifolia; cinnamyl alcohol dehydrogenase; phylogeny; gene expression

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.408； 五年影响因子：3.459 ）

ISSN：

年卷期： 2022 年 12 卷 7 期

页码：

收录情况： SCI

摘要： Agave angustifolia is an important crassulacean acid metabolism plant species, with wide applications in beverage and sisal fiber production. In this study, we carried out a transcriptome analysis of A. angustifolia leaves, generating a total of 58,482,436 clean reads through Illumina paired-end sequencing. De novo transcriptome assembly generated 67,314 unigenes, with about half of them having homologs in four public databases. In the Nr database, Asparagus officinalis was shown to be most closely related to agave, and the early angiosperm Amborella trichopoda was selected as an outgroup species. We further identified five, two, seven, seven, seven, six and six CAD genes in asparagus, amborella, A. deserti, A. tequilana, A. americana, A. hybrid H11648 and A. angustifolia, respectively. The maximum likelihood phylogenetic tree revealed the species-specific expansion of CAD genes in arabidopsis, rice and agave. The expression analysis indicated the conservatively expressed CAD1/2/4/6, providing candidate targets for manipulation to improve lignin traits. The species-specific expression of CAD3/5/7 indicates the existence of different regulatory mechanisms controlling the expression of these genes in agave species. This study presents the first transcriptome dataset of A. angustifolia, facilitating future studies on lignin biosynthesis in agave.

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