Karyotypes defined by C-banding. (A) L1- Laranjal do Jari/AP (ZUEC 19196, male), (B) L2- Prainha/PA (ZUEC 16512, male), (C) L3- Monte Alegre/PA (ZUEC 19916, male), (D) L4- Alenquer/PA (ZUEC 19932, female), (E) L5- Óbidos/PA (ZUEC 19914, male), (F) L6- Oriximiná/PA (ZUEC 19922, male), (G) L7- Belterra/PA (ZUEC 16506, male), (H) L8- Alta Floresta/MT (ZUEC 16406, male), (I) L9- Chapada dos Guimarães/MT (ZUEC 15886, male), and (J) L10- Santa Terezinha/MT (ZUEC 13503, male). The arrowheads indicate the non-centromeric heterochromatic blocks. Note that in (G) and (H), pair 8 was stained using the C-banding technique, and the same pair was sequentially stained using DAPI (below). The negatively stained region coincided with the secondary constriction, which was homomorphic in the karyotype from Belterra (G) and heteromorphic in that from Alta Floresta (H), thus confirming inversion in this region. Scale Bar=3 μm.