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Genome wide identification, genomic organization, and expression profiling of the CONSTANS-like (COL) gene family in petunia under multiple stresses

Citation

Debnath, Sourav; Khatun, Khadiza; Mi‑Young, Chung (2021), Genome wide identification, genomic organization, and expression profiling of the CONSTANS-like (COL) gene family in petunia under multiple stresses, Dryad, Dataset, https://doi.org/10.5061/dryad.r2280gbd3

Abstract

CONSTANS-like (CO-like, COL) is a putative zinc-finger transcription factor family that plays a key role in the control of flowering time in photoperiod-sensitive plants. Besides, the COL family protein is also involved in plant development, responses to stresses. However, information on plant development and stress response related function has not been previously performed in any solanaceous crop. In this study, a genome-wide analysis of COL gene family was conducted in petunia to elucidate their roles in organ development and stress response. A total of 33 COL genes (15 PaCOL genes in P. axillaris and 18 PiCOL genes in P. inflata) were identified in petunia. Subsequently, a genome-wide systematic analysis was performed in 15 PaCOL genes. Based on their amino acid sequence identity and domain composition they were phylogenetically classified into three groups those are conserved among the flowering plants. Similar gene structure and motif distribution were observed in the same group. Subcellular localization assays demonstrated that all PaCOL proteins were localized in nucleus. Furthermore, differential expression patterns of PaCOL genes were observed in various tissues. The expression patterns of PaCOL genes were observed under various abiotic and phytohormone treatment to explore their relatedness in different stresses. Moreover, several stress and light-responsive cis-elements were detected for different PaCOL genes. The COL genes of petunia species, those were clustered into three distinct groups, are conserved among flowering plants, were expressed in different tissues and induced under multiple abiotic stress treatments indicating their involvement in plant growth and development and stress response mechanism. This work laid the significant foundation for functional characterization of PaCOL gene family to uncover their biological roles in plant growth, development and in stress response. Petunia, Genome-wide analysis, Constans-like gene(COL), Expression patterns, Abiotic stresses

Usage Notes

It is usefull for phylogenetic analysis of CONSTANS-like (COL) gene family.