title: [Analysis of nucleotide sequences polymorphism of chloroplast trnL-trnF spacer of tRNA genes in giant duckweed Spirodela polyrrhiza (L.) Schleiden].
abstract: Chloroplast DNA trnL-trnF spacer sequences of tRNA genes of 14 specimens of the fam. Lemnaceae have been characterized. Nucleotide polymorphism analysis of the spacer trnL-trnF of geographically isolated and morphologically differing accessions of S. polyrrhiza that is the most widespread species of Spirodela genus showed the low level of intraspecific variability. Five trnL-trnF haplotypes of S. polyrrhiza are identified. Both mono-, and polynucleotide repeats, and also extensive indels, specific to representatives Spirodela polyrrhiza, Landoltia punctata and Lemna sp. are revealed. Competency of Landoltia genus allocation as separate entity was confirmed.
authors.forename: N N
authors.initials: NN
authors.lastname: Ryzhova
authors.forename: L V
authors.initials: LV
authors.lastname: Martirosian
authors.forename: T V
authors.initials: TV
authors.lastname: Kolganova
authors.forename: S V
authors.initials: SV
authors.lastname: Goriunova
authors.forename: E Z
authors.initials: EZ
authors.lastname: Kochieva
mesh_terms: D029064:Araceae / Q000145:classification* / Q000235:genetics; D001483:Base Sequence; D018742:DNA, Chloroplast / Q000235:genetics*; D021901:DNA, Intergenic / Q000235:genetics*; D017343:Genes, Plant; D006239:Haplotypes; D008969:Molecular Sequence Data; D010802:Phylogeny; D020641:Polymorphism, Single Nucleotide; D012343:RNA, Transfer / Q000235:genetics*
chemical_list: D018742:DNA, Chloroplast; D021901:DNA, Intergenic; D012343:RNA, Transfer