Bioinformatics identification of new targets for improving low temperature stress tolerance in spring and winter wheat

BMC Bioinformatics

Research Article

Dan Tulpan¹  Youlian Pan²  Alain B. Tchagang²  François Fauteux² 

[1] Information and Communications Technologies, National Research Council Canada, E1A 7R1, Moncton, NB, Canada;Information and Communications Technologies, National Research Council Canada, K1A 0R6, Ottawa, ON, Canada;

关键词: Wheat;    Breeding;    Cold acclimation;    Cold stress;    Cold tolerance;    Low temperature;    Marker;    Target;    Transcriptional regulatory network;   

DOI  :  10.1186/s12859-017-1596-x

 received in 2016-09-03, accepted in 2017-03-10,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundPhenotypic studies in Triticeae have shown that low temperature-induced protective mechanisms are developmentally regulated and involve dynamic acclimation processes. Understanding these mechanisms is important for breeding cold-resistant wheat cultivars. In this study, we combined three computational techniques for the analysis of gene expression data from spring and winter wheat cultivars subjected to low temperature treatments. Our main objective was to construct a comprehensive network of cold response transcriptional events in wheat, and to identify novel cold tolerance candidate genes in wheat.ResultsWe assigned novel cold stress-related roles to 35 wheat genes, uncovered novel transcription (TF)-gene interactions, and identified 127 genes representing known and novel candidate targets associated with cold tolerance in wheat. Our results also show that delays in terms of activation or repression of the same genes across wheat cultivars play key roles in phenotypic differences among winter and spring wheat cultivars, and adaptation to low temperature stress, cold shock and cold acclimation.ConclusionsUsing three computational approaches, we identified novel putative cold-response genes and TF-gene interactions. These results provide new insights into the complex mechanisms regulating the expression of cold-responsive genes in wheat.

【 授权许可】

CC BY   
© The Author(s). 2017