Molecular Characterization and Expression Profiling of Tomato GRF Transcription Factor Family Genes in Response to Abiotic Stresses and Phytohormones

International Journal of Molecular Sciences
Khadiza KhatunMi-Young Chung

Abstract

Growth regulating factors (GRFs) are plant-specific transcription factors that are involved in diverse biological and physiological processes, such as growth, development and stress and hormone responses. However, the roles of GRFs in vegetative and reproductive growth, development and stress responses in tomato (Solanum lycopersicum) have not been extensively explored. In this study, we characterized the 13SlGRFgenes. In silico analysis of protein motif organization, intron-exon distribution, and phylogenetic classification confirmed the presence of GRF proteins in tomato. The tissue-specific expression analysis revealed that most of theSlGRFgenes were preferentially expressed in young and growing tissues such as flower buds and meristems, suggesting thatSlGRFsare important during growth and development of these tissues. Some of theSlGRFgenes were preferentially expressed in fruits at distinct developmental stages suggesting their involvement in fruit development and the ripening process. The strong and differential expression of differentSlGRFsunder NaCl, drought, heat, cold, abscisic acid (ABA), and jasmonic acid (JA) treatment, predict possible functions for these genes in stress responses in addition to their growth regulat...Continue Reading

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Citations

May 28, 2020·Frontiers in Plant Science·J Calleja-CabreraM Pernas
Jun 6, 2020·Scientific Reports·Elham Younesi-MelerdiSeyed Abolfazl Motahari
Jul 25, 2020·Genetics and Molecular Biology·Leila Spagnolo FoniniMarcia Margis-Pinheiro
Jan 26, 2021·Plant Science : an International Journal of Experimental Plant Biology·Alessandra FracassoAndrea Carra

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Methods Mentioned

BETA
RNA-Seq
PCR
environmental stress

Software Mentioned

Blast2GO
Primer3
MEGA
ClustalW
Multiple EM for Motif Elicitation ( MEME )
QBlast
MapGene2Chrom
ProtParam
SMART
SOL

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