Foxtail millet (Setaria italica (L.) P. Beauv) CIPKs are responsive to ABA and abiotic stresses


Autoři: Jinfeng Zhao aff001;  Aili Yu aff001;  Yanwei Du aff001;  Gaohong Wang aff001;  Yanfang Li aff001;  Genyou Zhao aff001;  Xiangdong Wang aff002;  Wenzhong Zhang aff001;  Kai Cheng aff001;  Xin Liu aff001;  Zhenhua Wang aff001;  Yuwen Wang aff001
Působiště autorů: Millet Research Institute, Shanxi Academy of Agricultural Sciences, Shanxi Key Laboratory of Genetic Resources and Breeding in Minor Crops, Changzhi, Shanxi, People's Republic of China aff001;  Tangshan Academy of Agricultural Sciences, Tangshan, Hebei, People's Republic of China aff002
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
doi: 10.1371/journal.pone.0225091

Souhrn

CBL-interacting protein kinases (CIPKs) have been shown to regulate a variety of environmental stress-related signalling pathways in plants. Foxtail millet (Setaria italica (L.) P. Beauv) is known worldwide as a relatively stress-tolerant C4 crop species. Although the foxtail millet genome sequence has been released, little is known about the functions of CIPKs in foxtail millet. Therefore, a systematic genome-wide analysis of CIPK genes in foxtail millet was performed. In total, 35 CIPK members were identified in foxtail millet and divided into four subgroups (I to IV) on the basis of their phylogenetic relationships. Phylogenetic and gene structure analyses clearly divided all SiCIPKs into intron-poor and intron-rich clades. Cis-element analysis subsequently indicated that these SiCIPKs may be involved in responses to abiotic stimuli, hormones, and light signalling during plant growth and development, and stress-induced expression profile analysis revealed that all the SiCIPKs are involved in various stress signalling pathways. These results suggest that the CIPK genes in foxtail millet exhibit the basic characteristics of CIPK family members and play important roles in response to abiotic stresses. The results of this study will contribute to future functional characterization of abiotic stress responses mediated by CIPKs in foxtail millet.

Klíčová slova:

Cereal crops – Flowering plants – Gene expression – Millet – Plant resistance to abiotic stress – Sequence motif analysis – Stress signaling cascade – Thermal stresses


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