Cytogenetics of four species of Spirostreptidae (Diplopoda, Spirostreptida).
Considering an estimated number of millipedes of approximately 80,000, cytogenetic studies on these animals are rare, as only a total of 70 species have their karyotypes described. The present study reports on the chromosomal number of four Brazilian diplopods of the family Spirostreptidae: Urostreptus atrobrunneus with 2n=24, XY; Gymnostreptus olivaceus 2n=12, XY and Alloporus araraquarensis and A. principes, 2n=18, XY. The C-banding pattern and NOR staining of U. atrobrunneus, G. olivaceus and A. araraquarensis are described.
de Godoy
Juliana Aparecida Preto
JA
Department of Biology, São Paulo State University (UNESP), Bioscience Institute (IB), Av. 24A, No. 1515, Bela Vista, 13506-900 Rio Claro, São Paulo, Brazil.
Pierozzi
Pedro Henrique Braga
PH
Fontanetti
Carmem Silvia
CS
D000818:Animals; D001181:Arthropods / Q000145:classification / Q000235:genetics*; D002871:Chromosome Banding; D003582:Cytogenetics; D006570:Heterochromatin / Q000648:ultrastructure; D009697:Nucleolus Organizer Region; D019849:Sex Determination Processes
D006570:Heterochromatin