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Genome-wide analysis of CBL and CIPK family genes in cotton: conserved structures with divergent interactions and expression.


ABSTRACT: Calcineurin B-like proteins (CBLs) interact with CBL-interacting protein kinases (CIPKs) to form complex molecular modules in response to diverse abiotic stresses. Although previous studies demonstrated that the CBL-CIPK networks play a crucial role in plants response to abiotic stresses, however, little is known about their functions in cotton. In the present study, a total of 22 GhCBL and 79 GhCIPK gene family members were identified in upland cotton (Gossypium hirsutum Linn). Synteny analysis revealed that most genes of GhCBL and GhCIPK exist in pairs between At sub-genome and Dt sub-genome. Interaction analysis between GhCBL and GhCIPK proteins by yeast two-hybrid (Y2H) suggested that the GhCBL-GhCIPK networks were complex, and exhibited functional redundancy in cotton. Quantitative expression analysis by public transcriptome datasets revealed that some GhCBL and GhCIPK genes are differentially expressed under abiotic stress treatments, and especially under drought stress. Our results not only contribute to understanding the structural features of GhCBL and GhCIPK genes but also provide the basis for in-depth functional studies of GhCBL-GhCIPK networks in stress response for plants.

Supplementary information

The online version contains supplementary material available at (doi:10.1007/s12298-021-00943-1).

SUBMITTER: Sun W 

PROVIDER: S-EPMC7907412 | biostudies-literature |

REPOSITORIES: biostudies-literature

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