Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Multifarious Roles of GRAS Transcription Factors in Plants

Version 1 : Received: 26 February 2021 / Approved: 2 March 2021 / Online: 2 March 2021 (10:01:42 CET)

How to cite: Kumari, P.; Kakkar, M.; Gahlaut, V.; Jaiswal, V.; Kumar, S. Multifarious Roles of GRAS Transcription Factors in Plants. Preprints 2021, 2021030066 (doi: 10.20944/preprints202103.0066.v1). Kumari, P.; Kakkar, M.; Gahlaut, V.; Jaiswal, V.; Kumar, S. Multifarious Roles of GRAS Transcription Factors in Plants. Preprints 2021, 2021030066 (doi: 10.20944/preprints202103.0066.v1).

Abstract

The GAI‐RGA ‐ and ‐SCR (GRAS) proteins belong to the plant-specific transcription factor gene family and involved in several developmental processes, phytohormone and phytochrome signaling, symbiosis, stress responses etc. GRAS proteins have a conserved GRAS domain at C-terminal and hypervariable N-terminal. The C-terminal conserved domain directly affects the function of the GRAS proteins. For instance, in Arabidopsis, mutations in this domain in Slender rice 1 (SLR1) and Repressor of GA (RGA) proteins cause significant phenotypic changes. GRAS proteins have been reported in more than 30 plant species and till now it has been divided into 17 subfamilies. This review highlighted GRAS protein's importance during several biological processes in plants, structural features of GRAS proteins, their expansion and diversification in the plants, GRAS-interacting proteins complexes and their role in biological processes. We also summarized available recent research that utilized CRISPR-Cas9 technology to manipulate GRAS genes in a plant for different traits. Further, the exploitation of GRAS genes in crop improvement programs has also been discussed

Keywords

GRAS protein, DELLA, Intrinsically Disordered Proteins, Arbuscular Mycorrhizal association, abiotic stress

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