SnRK2 Homologs in Gossypium and GhSnRK2.6 Improved Salt Tolerance in Transgenic Upland Cotton and Arabidopsis |
| |
| Authors: | Ying Su Yumei Wang Junbo Zhen Xi Zhang Zhiwen Chen Le Li Yi Huang Jinping Hua |
| |
| Affiliation: | 1.Laboratory of Cotton Genetics, Genomics and Breeding, College of Agronomy and Biotechnology/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement,China Agricultural University,Beijing,China;2.Institute of Cash Crops,Hubei Academy of Agricultural Sciences,Wuhan,China;3.Institute of Cotton,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang,China;4.Oil Crops Research Institute,Chinese Academy of Agricultural Sciences,Wuhan,China |
| |
| Abstract: | SnRK2s are a large family of plant-specific protein kinases, which play important roles in multiple abiotic stress responses in various plant species. But the family in Gossypium has not been well studied. Here, we identified 13, 10, and 13 members of the SnRK2 family from Gossypium raimondii, Gossypium arboreum, and Gossypium hirsutum, respectively, and analyzed the locations of SnRK2 homologs in chromosomes based on genome data of cotton species. Phylogenetic tree analysis of SnRK2 proteins showed that these families were classified into three groups. All SnRK2 genes were comprised of nine exons and eight introns, and the exon distributions and the intron phase of homolog genes among different cotton species were analogous. Moreover, GhSnRK2.6 was overexpressed in Arabidopsis and upland cotton, respectively. Under salt treatment, overexpressed Arabidopsis could maintain higher biomass accumulation than wild-type plants, and GhSnRK2.6 overexpression in cotton exhibited higher germination rate than the control. So, the gene GhSnRK2.6 could be utilized in cotton breeding for salt tolerance. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
