Next Article in Journal
From the Psychiatrist’s Couch to Induced Pluripotent Stem Cells: Bipolar Disease in a Dish
Next Article in Special Issue
Key Hormonal Components Regulate Agronomically Important Traits in Barley
Previous Article in Journal
Structural Biology of the TNFα Antagonists Used in the Treatment of Rheumatoid Arthritis
Previous Article in Special Issue
Functional Characterization of the Steroid Reductase Genes GmDET2a and GmDET2b from Glycine max
Article

Evolution and Stress Responses of Gossypium hirsutum SWEET Genes

State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang 455000, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2018, 19(3), 769; https://doi.org/10.3390/ijms19030769
Received: 7 February 2018 / Revised: 21 February 2018 / Accepted: 26 February 2018 / Published: 8 March 2018
The SWEET (sugars will eventually be exported transporters) proteins are sugar efflux transporters containing the MtN3_saliva domain, which affects plant development as well as responses to biotic and abiotic stresses. These proteins have not been functionally characterized in the tetraploid cotton, Gossypium hirsutum, which is a widely cultivated cotton species. In this study, we comprehensively analyzed the cotton SWEET gene family. A total of 55 putative G. hirsutum SWEET genes were identified. The GhSWEET genes were classified into four clades based on a phylogenetic analysis and on the examination of gene structural features. Moreover, chromosomal localization and an analysis of homologous genes in Gossypium arboreum, Gossypium raimondii, and G. hirsutum suggested that a whole-genome duplication, several tandem duplications, and a polyploidy event contributed to the expansion of the cotton SWEET gene family, especially in Clade III and IV. Analyses of cis-acting regulatory elements in the promoter regions, expression profiles, and artificial selection revealed that the GhSWEET genes were likely involved in cotton developmental processes and responses to diverse stresses. These findings may clarify the evolution of G. hirsutum SWEET gene family and may provide a foundation for future functional studies of SWEET proteins regarding cotton development and responses to abiotic stresses. View Full-Text
Keywords: cotton; SWEET; evolution; stress response; artificial selection cotton; SWEET; evolution; stress response; artificial selection
Show Figures

Graphical abstract

MDPI and ACS Style

Li, W.; Ren, Z.; Wang, Z.; Sun, K.; Pei, X.; Liu, Y.; He, K.; Zhang, F.; Song, C.; Zhou, X.; Zhang, W.; Ma, X.; Yang, D. Evolution and Stress Responses of Gossypium hirsutum SWEET Genes. Int. J. Mol. Sci. 2018, 19, 769. https://doi.org/10.3390/ijms19030769

AMA Style

Li W, Ren Z, Wang Z, Sun K, Pei X, Liu Y, He K, Zhang F, Song C, Zhou X, Zhang W, Ma X, Yang D. Evolution and Stress Responses of Gossypium hirsutum SWEET Genes. International Journal of Molecular Sciences. 2018; 19(3):769. https://doi.org/10.3390/ijms19030769

Chicago/Turabian Style

Li, Wei, Zhongying Ren, Zhenyu Wang, Kuan Sun, Xiaoyu Pei, Yangai Liu, Kunlun He, Fei Zhang, Chengxiang Song, Xiaojian Zhou, Wensheng Zhang, Xiongfeng Ma, and Daigang Yang. 2018. "Evolution and Stress Responses of Gossypium hirsutum SWEET Genes" International Journal of Molecular Sciences 19, no. 3: 769. https://doi.org/10.3390/ijms19030769

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop