title: [N-terminal sequence of omega-gliadins from Aegilops longissima. The origin of the genome of polyploid wheat].
abstract: Using high-performance reversed phase liquid chromatography, the major components of omega-gliadins were isolated from four samples of Aegilops longissima. A high interspecific variability of Ae. longissima with regard to gliadin composition was demonstrated. The N-terminal sequences of omega-gliadins were determined. It was shown that omega-gliadins under study belong to the SRQ type earlier discovered in hexaploid wheat species and in Ae. squarrosa. It is supposed that this type of sequence is specific to the whole Aegilops genus. The N-terminal sequence of omega-gliadin of Ae. longissima was identified and its similarity to the alpha/beta-type sequence found in hexaploid wheat species was revealed. The data obtained are discussed in terms of the origin of polyploid wheat genomes.
authors.forename: T I
authors.initials: TI
authors.lastname: Odintsova
authors.forename: Ts A
authors.initials: TsA
authors.lastname: Egorov
mesh_terms: D000595:Amino Acid Sequence; D002851:Chromatography, High Pressure Liquid; D005903:Gliadin / Q000032:analysis / Q000235:genetics*; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000235:genetics*; D011123:Polyploidy; D013045:Species Specificity; D014908:Triticum / Q000235:genetics*
chemical_list: D010940:Plant Proteins; D005903:Gliadin
vernacular_title: N-kontsevye posledovatel'nosti omega-gliadinov Aegilops longissima. K voprosu o proiskhozhdenii genomov poliploidnykh pshenits.