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Metaphase chromosomes of B. distachyon genotype ABR1. a FISH of 5S (red fluorescence) and 25S rDNA (green fluorescence) to five pairs of chromosomes. b Idiogram of haploid set of chromosomes. The sites of rDNA loci are indicated. c–d Idiograms of B. distachyon chromosomes showing physical localisation of BAC clones used in sequential FISH reactions. The positions of BAC landing sites are marked by red dots. Bar 5 μm
