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Agave schidigera Transcriptome Reveals Stress-Responsive Phenylalanine ammonia-lyase Genes in Agave

文献类型： 外文期刊

作者： Wang, Xuxia 1 ; Hu, Xiaoli 2 ; Lin, Chen 4 ; Liu, Qingqing 4 ; Li, Yubo 2 ; Du, Dengxiang 6 ; Mkapa, Dietram 2 ; Zhang, Weiyi 5 ; Huang, Xing 2 ; Yi, Kexian 2 ;

作者机构： 1.Wuchang Shouyi Univ, Urban Construct Coll, Wuhan 430064, Peoples R China

2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Natl Key Lab Trop Crop Breeding, Haikou 571101, Peoples R China

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

4.Shanghai Chenshan Bot Garden, Shanghai Key Lab Plant Funct Genom & Resources, Shanghai 201602, Peoples R China

5.Hainan Univ, Sch Trop Agr & Forestry, Danzhou 571737, Peoples R China

6.Wuhan Polytech Univ, Sch Life Sci & Technol, Wuhan 430023, Peoples R China

7.Tanzania Agr Res Inst TARI, Mlingano Ctr, POB 5088, Tanga, Tanzania

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

9.Hainan Key Lab Monitoring & Control Trop Agr Pests, Haikou 571101, Peoples R China

10.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China

关键词： transcriptome; Agave schidigera; PAL genes; phylogeny; stress; expression pattern

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2024 年 14 卷 11 期

页码：

收录情况： SCI

摘要： Agave is a significant fiber crop in tropical regions, known for its high fiber strength. Lignin is closely associated with fiber strength, and phenylalanine ammonia-lyase (PAL) serves as the initial enzyme in biosynthesis of lignin. Hence, it is of considerable significance to study the genes of PAL family to analyze the characteristics and mechanism of sisal fiber development. In this research, we conducted a transcriptomic analysis of Agave schidigera, a widely recognized ornamental plant in agave. Approximately 29.85 million clean reads were acquired through Illumina sequencing. In total, 116,602 transcripts including 72,160 unigenes were assembled, and 22.06 similar to 63.56% of those unigenes were annotated in public databases. Two, six, six and six PAL genes were successfully identified and cloned from A. schidigera, A. deserti, A. tequilana and A. H11648, respectively. After phylogenetic analysis, these genes were clustered into two branches. Genes AhPLA2a and AhPLA2c exhibited higher expression levels compared to other genes but had different expression patterns. Moreover, AhPLA2a and AhPLA2c were expressed at high levels under full-nutrient, nitrogen-free and phosphorus-free stresses. Most PAL genes were induced by Phytophthora nicotianae Breda, especially AhPAL1a, AhPAL1b, AhPAL2b and AhPAL2c. This research is the first work to present a de novo transcriptome dataset for A. schidigera, enriching its bioinformation of transcripts. The cloned PAL genes and the expression analyses will form the basis of future research on lignin biosynthesis, the relationship between lignin and fiber strength, and stress resistance in Agave species.

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