title: Two-dimensional gel electrophoresis of proteins for genetic studies in Douglas fir (Pseudotsuga menziesii).
abstract: A method of two-dimensional gel electrophoresis of proteins from Douglas fir needles is described. Extraction in the presence of sodium dodecyl sulfate (SDS) and 2-mercaptoethanol followed by heating at 100 degrees C produces reliable two-dimensional gels which are convenient for genetic studies. Three genotypes from different geographical origins have been compared: among 225 loci expressed, 22 display regulatory variations and 7 show allelic variations. Thus it is now possible to undertake the genetic study of Douglas fir using this powerful technique.
mesh_terms: D014644:Genetic Variation; D007526:Isoelectric Point; D008970:Molecular Weight; D010940:Plant Proteins / Q000032:analysis / Q000235:genetics*; D010944:Plants
chemical_list: D010940:Plant Proteins