title: Salt stress induced proteome and transcriptome changes in sugar beet monosomic addition line M14.
abstract: Sugar beet monosomic addition line M14 displays interesting phenotypes such as apomixis and salt stress tolerance. Here we reported proteomic and transcriptomic analysis of M14 leaves and roots under 500mM NaCl treatment for seven days. Proteins from control and treated samples were extracted and separated using two-dimensional difference gel electrophoresis (2D-DIGE). A total of 40 protein spots from leaf gels and 36 protein spots from root gels exhibited significant changes. Using mass spectrometry and database searching, 38 unique proteins in leaves and 29 unique proteins in roots were identified. The proteins included those involved in metabolism, protein folding, photosynthesis, and protein degradation. In addition, cDNA libraries of differentially expressed genes were constructed using suppression subtractive hybridization (SSH). Fifty-eight unigenes including 14 singletons and 44 contigs were obtained. Some salt-responsive genes were identified to function in metabolism, photosynthesis, stress and defense, energy, protein synthesis and protein degradation. This research has revealed candidate genes and proteins for detailed functional characterization, and set the stage for further investigation of the salt tolerance mechanisms in sugar beet.
authors.affiliation: Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
authors.forename: Le
authors.initials: L
authors.lastname: Yang
authors.forename: Chunquan
authors.initials: C
authors.lastname: Ma
authors.forename: Linlin
authors.initials: L
authors.lastname: Wang
authors.forename: Sixue
authors.initials: S
authors.lastname: Chen
authors.forename: Haiying
authors.initials: H
authors.lastname: Li
mesh_terms: D027461:Beta vulgaris / Q000737:chemistry* / Q000235:genetics*; D004781:Environmental Exposure; D018506:Gene Expression Regulation, Plant / Q000187:drug effects*; D017343:Genes, Plant; D009006:Monosomy; D018515:Plant Leaves / Q000737:chemistry; D010940:Plant Proteins / Q000378:metabolism; D018517:Plant Roots / Q000737:chemistry; D020543:Proteome / Q000187:drug effects* / Q000378:metabolism; D054712:Salinity; D055049:Salt Tolerance / Q000235:genetics*; D012965:Sodium Chloride / Q000032:analysis / Q000378:metabolism / Q000633:toxicity*; D013312:Stress, Physiological; D059467:Transcriptome / Q000187:drug effects*
chemical_list: D010940:Plant Proteins; D020543:Proteome; D012965:Sodium Chloride