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GrainGenes Reference Report: GNM-45-339

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Reference	GNM-45-339
Title	Species relationships between antifungal chitinase and nuclear rDNA (internal transcribed spacer) sequences in the genus Hordeum
Journal	Genome
Year	2002
Volume	45
Pages	339-347
Author	De Bustos A Loarce Y Jouve N
Abstract	Summary: The sequences of the chitinase gene (Chi-26) and the internal transcribed spacer of 18S - 5.8S - 26S rDNA (ITS1) were determined to analyze the phylogenetic relationships among species representing the four basic genomes of the genus Hordeum. Grouping analysis based on data for Chi-26 gene sequences placed Hordeum secalinum (H genome) near the Hordeum murinum complex (Xu genome), and Hordeum bulbosum distant from the other species that carried the I genome. ITS sequence data showed the expected grouping based on the genome classification of the species studied. Different sequences of ITS were detected even in the genomes of the diploid species. The results are interpreted in terms of defective or unfinished concerted evolution processes in each taxon
Keyword	[ Hide all but 1 of 39 ] analysis antifungal barley hordeum c-banded karyotypes canada chitinase chitinase gene chloroplast dna classification complex concerted evolution diploid evolution gene gene sequence genetic genome genus genus hordeum h genome hordeum hordeum bulbosum internal transcribed spacer molecular characterization murinum nuclear nuclear rdna nucleotide-sequences phylogenetic relationship phylogeny rdna repeat units repetitive dna-sequences ribosomal rna gene sequence sequence data spacer species species relationships

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