학술논문

Location of ribosomal genes in the chromosomes of Anopheles darlingi and Anopheles nuneztovari (Diptera, Culicidae) from the Brazilian Amazon
Document Type
article
Source
Memorias do Instituto Oswaldo Cruz, Vol 98, Iss 5, Pp 629-635 (2003)
Subject
Anopheles darlingi
Anopheles nuneztovari
fluorescence in situ hybridization
rDNA genes
nucleolar organizer region
sex chromosomes
Microbiology
QR1-502
Infectious and parasitic diseases
RC109-216
Language
English
ISSN
0074-0276
1678-8060
Abstract
Fluorescence in situ hybridization of Anopheles darlingi and A. nuneztovari demonstrated nucleolar organizer region activity at the end of the fourth larval instar, when the nucleolar organizer regions underwent gradual condensation. The heteromorphic sex chromosomes showed intraindividual size variation in the rDNA blocks located in the pericentromeric region and this coincided with the location of constitutive heterochromatin (C-banding).