Identification and expression of PAL genes in sisal

Sisal is an important fiber crop in tropical areas, but its research foundation of molecular biology is relatively weak, and the mechanism of fiber development still remains unclear. Phenylalanine ammonia-lyase(PAL) is the first enzyme of lignin bio-synthesis, which is an important component of fibe...

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Bibliographic Details
Published inZuo wu xue bao Vol. 47; no. 6; p. 1082
Main Authors Huang, Xing, Gen, Jin-Xi, Chen, Tao, Qin, Xu, Tan, Shi-Bei, Chen, He-Long, Yi, Ke-Xian
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Agricultural Sciences (CAAS) 01.01.2021
Subjects
Ammonia
Breeding
Disease resistance
Gene expression
Gene regulation
Genes
Heavy metals
Inoculation
Lignin
Metabolites
Molecular biology
Phenylalanine
Phenylalanine ammonia-lyase
Phylogeny
Post-transcription
Secondary metabolites
Sisal
Synthesis
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Summary:Sisal is an important fiber crop in tropical areas, but its research foundation of molecular biology is relatively weak, and the mechanism of fiber development still remains unclear. Phenylalanine ammonia-lyase(PAL) is the first enzyme of lignin bio-synthesis, which is an important component of fiber. According to published transcriptome data, two sisal PAL genes with complete coding sequences were successfully identified. Their expression patterns during sisal leaf development were consistent with previously reported PAL activity changes during fiber development, indicating that PAL was closely related to lignin bio-synthesis. Phylogenetic analysis showed that sisal PALs were closely related with Agave americana. Selection pressure analysis showed similar selection pressure of PALs in sisal and A. americana, which were higher than those in A. tequilana. This might be caused by the convergent evolution of fiber-related traits in sisal and A. americana. In addition, sisal PALs were not significantly expressed
ISSN:0496-3490