title: Chromosomal localization of a novel repetitive sequence in the Chenopodium quinoa genome.
abstract: In this study, a novel repetitive sequence pTaq10 was isolated from the Taq I digest of the genomic DNA of the pseudocereal Chenopodium quinoa. Sequence analysis indicated that this 286-bp monomer is not homologous to any known retroelement sequence. FISH and Southern blot analysis showed that this sequence is characterized by an interspersed genomic organization. After FISH, hybridization signals were observed as small dots spread throughout all of the chromosomes. pTaq hybridization signals were excluded from 45S rRNA gene loci, but they partly overlapped with 5S rDNA loci. pTaq10 is not a species-specific sequence, as it was also detected in C. berlandieri.
authors.affiliation: Department of Plant Anatomy and Cytology, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland. bkolano@us.edu.pl
authors.forename: Bozena
authors.initials: B
authors.lastname: Kolano
authors.forename: Andrzej
authors.initials: A
authors.lastname: Plucienniczak
authors.forename: Miroslaw
authors.initials: M
authors.lastname: Kwasniewski
authors.forename: Jolanta
authors.initials: J
authors.lastname: Maluszynska
mesh_terms: D001483:Base Sequence; D027465:Chenopodium quinoa / Q000235:genetics*; D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D017404:In Situ Hybridization, Fluorescence; D008969:Molecular Sequence Data; D012091:Repetitive Sequences, Nucleic Acid