B. Goldschmidt et al., VISUALIZATION OF NUCLEOLAR ORGANIZER REGIONS IN SLOTHS (BRADYPUS-VARIEGATUS AND SCAEOPUS-TORQUATUS), Brazilian journal of genetics, 18(1), 1995, pp. 111-113
The nucleolar organizer regions of sloth chromosomes were studied. In
Bradypus vanegatus there was an intercalar localization of NORs on pai
r 25, while in Scaeopus torquatus, they were telomeric, suggesting a f
usion mechanism of chromosome evolution.