Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 181, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2022.114812
Keywords
Alternative splicing; Intron retention; Ginkgo biloba; Secondary metabolites
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Funding
- Guangdong Basic and Applied Basic Research Foundation [2019A1515111150]
- China Postdoctoral Sci-ence Foundation [2019M663196]
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This study revealed the genome-wide landscape of alternative splicing (AS) patterns in G. biloba, a relict tree species with rich medicinal value. Intron retention was found to be the dominant AS type, and the AS patterns of important secondary metabolites in G. biloba were analyzed. These findings have important implications for studying gene regulation and the synthesis mechanisms of secondary metabolites in woody plants.
Alternative splicing (AS) is an important genetic regulation mechanism for enhancing the diversity and complexity of the transcriptome and proteome from a limited number of genes. G. biloba is a typical relict tree species with rich medicinal value; the alternative splicing characteristics of the G. biloba genome are intriguing due to its very large proportion of large introns. In this study, the genome-wide landscape of the ginkgo AS pattern was revealed through a comprehensive analysis of multiple tissues across different developmental stages. Intron retention was the dominant AS type in all tissues together with a much lower frequency compared to other plants, and the functional enrichment of different AS type-related genes also showed great differences. In addition, the AS patterns of important secondary metabolites in G. biloba, including flavonoids and terpenoids, were thoroughly analyzed. These results could be beneficial for studies on gene regulation and the synthesis mechanisms of important secondary metabolites in woody plants.
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