Genome-Wide Analysis of YABBY Gene Family in Lettuce (Lactuca sativa) and Functional Characterization of LsaFILd

The YABBY gene family of plant-specific transcription factors plays important roles in the development of lateral organs, the establishment of adaxial-abaxial polarity and abiotic stress response. The YABBY gene family in lettuce ( Lactuca sativa ), an important leafy vegetable, remains to be identi...

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Published inJournal of plant growth regulation Vol. 42; no. 4; pp. 2124 - 2135
Main Authors Luo, Kangsheng, Zhang, Dechun, Zhai, Zhaodong, Liu, Xue, Zhou, Jun, Zhang, Bin, Li, Dayong
Format Journal Article
LanguageEnglish
Published New York Springer US 01.04.2023
Springer Nature B.V
Subjects
Agriculture
Biomedical and Life Sciences
Ectopic expression
Gene expression
Genes
Genomes
Lactuca sativa
Leaves
Lettuce
Life Sciences
Localization
Phylogeny
Plant Anatomy/Development
Plant Physiology
Plant Sciences
Transcription factors
Vegetables
Expression profile
Leaf development
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Summary:The YABBY gene family of plant-specific transcription factors plays important roles in the development of lateral organs, the establishment of adaxial-abaxial polarity and abiotic stress response. The YABBY gene family in lettuce ( Lactuca sativa ), an important leafy vegetable, remains to be identified. In this study, we analyzed the chromosomal distribution, gene structure and cis-transcriptional elements of the YABBY gene family in lettuce. Phylogenetic analysis of YABBY genes in lettuce classified them into four groups. The expression profile of YABBY genes in lettuce indicated that they might exert distinct functions in different tissues and developmental processes. The subcellular localization analysis and transactivation assay showed that LsaFILd probably functions as a transcription factor in the nucleus. Furthermore, the ectopic expression of LsaFILd exhibited leaves curled outwardly, not only in Arabidopsis thaliana but also in lettuce. Altogether, LsaFILd is a key functional gene in lettuce leaf development. Our study laid a foundation for the molecular research of functional genes in lettuce.
ISSN:0721-7595
1435-8107
DOI:10.1007/s00344-022-10687-1