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GrainGenes Reference Report: CUG-23-160

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Reference	CUG-23-160
Title	Structural alterations of the chloroplast genome found in grasses are not common in monocots
Journal	Current Genetics
Year	1993
Volume	23
Pages	160-165
Author	Katayama H Ogihara Y
Abstract	The distribution of structural rearrangements of the chloroplast genome found in grass cpDNA in comparison to that of tobacco was systematically checked in the cpDNAs of representative monocots The physical map of lily cpDNA, which shares a key position in the diversity of monocotyledonous plants, was constructed to assess whether three inversions found in grass cpDNA are common in monocots Specific probes for the detection of (1) intron loss in the rpoCl gene (2) insertional sequence gain in rpoC2, (3) deletion of ORF2280 in the inverted repeats, (4) non-reciprocal translocation of rpl23, and (5) rearrangements of ORF512, were hybridized to cpDNAs of lily, onion spiderwort, two turf grasses, and wheat. The existence of intervening sequences in the rpoC1 and rpoC2 genes was also confirmed by PCR analysis. All markers used in the study revealed that structural rearrangements of the chloroplast genome were restricted to grasses, indicating, that drastic structural alterations of the chloroplast genome had occurred in the ancestor(s) of grasses. These results also suggest that structural analysis of the chloroplast genome is applicable to the phylogenetic reconstruction of related plants.
Keyword	[ Hide all but 1 of 23 ] allium-cepa chloroplast genetics chloroplasts cynodon-dactylon deletion dna dna hybridization dna probes gene-mapping genetic variation genomes inversion lilium-maculatum lolium multiflorum lolium perenne nicotiana tabacum phylogeny restriction mapping southern-blotting structural-rearrangements tradescantia-ohiensis tradescantia-paludosa triticum aestivum

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