title: [Variability of RNA in morphogenesis of sugar beet and sunflower leaves].
abstract: We investigated the developmental gene expression patterns of Beta vulgaris L. using DNA: RNA hybridization reactions. We found that 2,100 and 900 diversive poly(A)+mRNA were synthesized while 430 and 4,000 diversive poly(A)+mRNA were disappeared during greening in cells of cotyledons and during senescence in cells of yellowing leaves respectively. In the other periods of sugar beet vegetation differential poly(A)+mRNA transcription failed to be revealed in the cells of green leaves within the limits of sensitivity of this method. On the average in the sugar beet green leaves 34,600 poly(A)+mRNA are synthesized, whereas in the sunflower cells cytoplasm (Helianthus annuus L.) about 94,000 diverse mRNA are synthesized. The comparison with some literary data testifies about the species specificity of gene expression pattern during the morphogenesis of the cultural plants.
authors.affiliation: Institute of Plant Physiology and Genetics NAS of Ukraine.
authors.forename: E N
authors.initials: EN
authors.lastname: Tishchenko
mesh_terms: D019663:Chenopodiaceae / Q000235:genetics* / Q000254:growth & development; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D006368:Helianthus / Q000235:genetics* / Q000254:growth & development; D009024:Morphogenesis; D012333:RNA, Messenger / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D012333:RNA, Messenger