On the Origin and Evolution of the Extant System of B Chromosomes in Oryzomyini Radiation (Rodentia, Sigmodontinae) - Fig 6

<p>Characterization of <i>Drymoreomys albimaculatus</i> X and Y, and <i>Nectomys squamipes</i> B after hybridization using HBR Y and telomeric sequences as probes (a) Sex chromosomes of a male <i>Drymoreomys albimaculatus</i> after dual-colour FISH. HBR Y signals are red and telomeric sequences are green. (b) Medium metacentric B of <i>N</i>. <i>squamipes</i> after dual-colour FISH. HBR Y signals are green and telomeric sequences are red. Note the pericentromeric ITS linked to <i>OSHR</i> on the X and Y chromosomes of <i>D</i>. <i>albimaculatus</i> and on <i>N</i>. <i>squamipes</i> supernumerary.