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- Title
The phenylalanine ammonia lyase (PAL) gene family shows a gymnosperm-specific lineage.
- Authors
Bagal, Ujwal R; Leebens-Mack, James H; Lorenz, W Walter; Dean, Jeffrey F D
- Abstract
Phenylalanine ammonia lyase (PAL) is a key enzyme of the phenylpropanoid pathway that catalyzes the deamination of phenylalanine to trans-cinnamic acid, a precursor for the lignin and flavonoid biosynthetic pathways. To date, PAL genes have been less extensively studied in gymnosperms than in angiosperms. Our interest in PAL genes stems from their potential role in the defense responses of Pinus taeda, especially with respect to lignification and production of low molecular weight phenolic compounds under various biotic and abiotic stimuli. In contrast to all angiosperms for which reference genome sequences are available, P. taeda has previously been characterized as having only a single PAL gene. Our objective was to re-evaluate this finding, assess the evolutionary history of PAL genes across major angiosperm and gymnosperm lineages, and characterize PAL gene expression patterns in Pinus taeda.
- Publication
BMC genomics, 2012, Vol 13 Suppl 3, pS1
- ISSN
1471-2164
- Publication type
Journal Article
- DOI
10.1186/1471-2164-13-S3-S1