Comparative Transcriptome Analysis Reveals Potential Gene Modules Associated with Cold Tolerance in Sugarcane (Saccharum officinarum L.)
文献类型： 外文期刊
作者： Huang, Xing 1 ; Liang, Yongsheng 5 ; Zhang, Baoqing 2 ; Song, Xiupeng 2 ; Li, Yangrui 1 ; Li, Changning 2 ; Qin, Zhengqiang 2 ; Li, Dewei 2 ; Wei, Jiguang 1 ; Wu, Jianming 2 ;
作者机构： 1.Guangxi Univ, Coll Agr, Nanning 530005, Guangxi, Peoples R China
2.Guangxi Acad Agr Sci, Sugarcane Res Inst, Nanning 530007, Guangxi, Peoples R China
3.Minist Agr, Key Lab Sugarcane Biotechnol & Genet Improvement, Nanning 530007, Guangxi, Peoples R China
4.Guangxi Acad Agr Sci, Guangxi Key Lab Sugarcane Genet Improvement, Nanning 530007, Guangxi, Peoples R China
5.Nanning Inst Agr Sci, Nanning 530021, Peoples R China
关键词： Sugarcane; Transcriptome; Cold tolerance; Metabolism; Gene module
期刊名称：JOURNAL OF PLANT GROWTH REGULATION （ 影响因子：4.169； 五年影响因子：4.038 ）
ISSN： 0721-7595
年卷期：
页码：
收录情况： SCI
摘要： Sugarcane is an important crop worldwide, and most sugar is derived directly from sugarcane. Due to its thermophilic nature, the yield of sugarcane is largely influenced by extreme climate conditions, especially cold stress. Therefore, the development of sugarcane with improved cold tolerance is an important goal. However, little is known about the multiple mechanisms underlying cold acclimation at the bud stage in sugarcane. In this study, we emphasized that sensitivity to cold stress was higher for the sugarcane variety ROC22 than for GT42, as determined by physical signs, including bud growth capacity, relative conductivity, malonaldehyde contents, and soluble sugar contents. To understand the factors contributing to the difference in cold tolerance between ROC22 and GT42, comparative transcriptome analyses were performed. We found that genes involved in the regulation of the stability of the membrane system were the relative determinants of difference in cold tolerance. Additionally, genes related to protein kinase activity, starch metabolism, and calcium signal transduction were associated with cold tolerance. Finally, 25 candidate genes, including 23 variety-specific and 2 common genes, and 7 transcription factors were screened out for understanding the possible cold resistance mechanism. The findings of this study provide candidate gene resources for cold resistance and will improve our understanding of the regulation of cold tolerance at the bud stage in sugarcane.
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