Abstract
Mouse single chromosome paints were applied to rat prophase/prometaphase chromosomes to detect homologous chromosome regions. The analysis revealed 49 rat chromosomal regions ranging in size from whole chromosomes down to small bands near the limit of detection with this method, which was estimated to be 2-3 Mb. When all the painted regions were taken into account, the whole rat genome was covered with mouse-homologous regions, with the exception of small segments near the centromeres and the short arms of Chromosomes (Chrs) 3, 11, 12, and 13. These regions were shown to contain high levels of rat-specific repetitive DNA. The number of conserved segments between rat and mouse detected by our high-resolution zoo-FISH method was significantly higher than that reported in previous studies.
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Schedule a callMore From: Mammalian genome : official journal of the International Mammalian Genome Society
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