Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

CBL-Interacting Protein Kinases (CIPKs) in Chickpea: Genome-Wide Identification, Structure and Expression Analysis under Abiotic Stresses and Development

Version 1 : Received: 11 March 2021 / Approved: 15 March 2021 / Online: 15 March 2021 (11:27:46 CET)

How to cite: Poddar, N.; Singh, A.; Kumar, S. CBL-Interacting Protein Kinases (CIPKs) in Chickpea: Genome-Wide Identification, Structure and Expression Analysis under Abiotic Stresses and Development. Preprints 2021, 2021030369 (doi: 10.20944/preprints202103.0369.v1). Poddar, N.; Singh, A.; Kumar, S. CBL-Interacting Protein Kinases (CIPKs) in Chickpea: Genome-Wide Identification, Structure and Expression Analysis under Abiotic Stresses and Development. Preprints 2021, 2021030369 (doi: 10.20944/preprints202103.0369.v1).

Abstract

Calcineurin B-like proteins (CBL)-interacting protein kinases (CIPKs) by interacting with CBLs regulate developmental processes, hormone signalling transduction and mediate stress responses in plants. Although the genome of chickpea is available, information of CIPK gene family has been missing in chickpea. Here, a total of 22 CIPK encoding genes were identified in chickpea and characterized by in silico methods. We found a high structural conservation in chickpea CIPK family. Our analysis showed that chickpea CIPKs have evolved with dicots from common ancestors, and extensive gene duplication events have played an important role in evolution and expansion of CIPK family in chickpea. Most chickpea CIPK proteins localize in cytoplasm and nucleus. Promoter analysis revealed various cis-regulatory elements related to plant development, hormone signaling and abiotic stresses. Expression analysis indicated that CIPKs are significantly expressed in a spectrum of developmental stages, tissue/organs that hinted their important role in plant development. Several CIPK genes had specific and overlapping expressions in different abiotic stresses and seed development stages, suggesting the important role of CIPK family in abiotic stress signaling, and seed development in chickpea. Thus, this study provides the avenue for detailed functional characterization of CIPK family in chickpea and other legume crops.

Subject Areas

CIPK; Calcium; Chickpea; Structure; Phylogeny; Expression; Stress; Development

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