A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes Moreira, Camila Do Nascimento Ventura, Karen Percequillo, Alexandre Reis Yonenaga-Yassuda, Yatiyo Zootaxa 2020 2020-11-06 4876 1 1 111 Thomas 1900 [151,266,619,644] Mammalia Muridae Neacomys Animalia Rodentia 35 36 Chordata genus  The authors established maps of chromosomal homology between the karyotype of  Neacomyssp. A and  Neacomyssp. B by using whole chromosome probes of  H. megacephalus. The comparative genomic mapping between the two  Neacomysspecies shows that these karyotypes differs by the occurrence of 11 fusion/fission events, one translocation, four pericentric inversions, and four heterochromatic amplification events ( Silva et al. 2017).