Abstract
ABSTRACT The PAL gene family plays an important role in plant growth, development, and response to abiotic stresses and has been identified in a variety of plants. However, a systematic characterization is still lacking in Ginkgo biloba. Using a bioinformatics approach, 11 GbPAL members of the PAL gene family identified in ginkgo were identified in this study. The protein structure and physicochemical properties indicated that the GbPAL genes were highly similar. Based on their exon-intron structures, they can be classified into three groups. A total of 62 cis-elements for hormone, light, and abiotic stress responses were identified in the promoters of GbPAL genes, indicating that PAL is a multifunctional gene family. GbPAL genes were specifically expressed in different tissues and ploidy of ginkgo. These results provide a theoretical basis for further studies on the functional expression of the GbPAL genes.
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