Robertsonian Fusion, Pericentric Inversion and Sex Chromosome Heteromorphisms inOryzomys Subflavus(Cricetidae, Rodentia)
Open Access
- 1 January 1985
- journal article
- research article
- Published by Firenze University Press in Caryologia
- Vol. 38 (2) , 129-137
- https://doi.org/10.1080/00087114.1985.10797737
Abstract
Seven different karyotypes were identified in a sample of 14 specimens of Oryzomys subflavus (2n = 56, 55 and 54; FN = 62 and 63). Homozygous and heterozygous individuals for a Robertsonian rearrangement of autosomes 5 and 6 were detected. Chromosome 5 was found to be acrocentric or subtelocentric due to a pericentric inversion. The X chromosome was acrocentric or subtelocentric, and the Y was a medium sized or a large acrocentric. The possible mechanisms of these sexual polymorphisms are considered.Keywords
This publication has 14 references indexed in Scilit:
- Numerous chromosomal polymorphisms in a natural population of rice rats (Oryzomys, Cricetidae)Cytogenetic and Genome Research, 1983
- Chromosomal variability of sex chromosomes and NOR’s in Trichomys apereoides (Rodentia, Echimyidae)Cytogenetic and Genome Research, 1982
- Robertsonian polymorphism in chromosomes of Oryzomys subflavus(Rodentia, Cricetidae)Cytogenetic and Genome Research, 1981
- Sex chromosome polymorphism in Oryzomys longicaudatus philippii (Rodentia, Cricetidae)Cellular and Molecular Life Sciences, 1977
- Robertsonian metacentrics in the mouseChromosoma, 1976
- The AfricanMus(Pigmy-Mice): The Role of Chromosomal Polymorphism in SpeciationCaryologia, 1975
- The possibility of latent centromeres and a proposed nomenclature system for total chromosome and whole arm translocationsCytogenetic and Genome Research, 1975
- Chromosome homology in the climbing rats, genus tylomys (Rodentia: Cricetidae)Chromosoma, 1973
- A RAPID BANDING TECHNIQUE FOR HUMAN CHROMOSOMESThe Lancet, 1971
- Differential binding of alkylating fluorochromes in human chromosomesExperimental Cell Research, 1970