Autor(es)Newton M E,Southern D I,Wood R J

ResumoA Giemsa C-banding technique applied to the mosquito, Aedes aegypti, has revealed a distinctive banding pattern which is described as a reliable means of distinguishing between the morphologically similar X and Y chromosomes during all stages of mitosis and meiosis. The essential difference is that the Y chromosome, unlike the X and the autosomes, is not C-banded in the centromere region. An intercalary band is also present in one arm of all X chromosomes and some Y chromosomes. The distribution of these cytological markers throughout meiosis indicates that the sex locus occurs somewhere within a pericentric region, the minimum extent of which includes both the intercalary band and the centromere.

Palavras-ChaveDevelopmental biology; Banding pattern; Essential difference; Centromere region; Distinctive banding

ImprentaChromosoma, v. 49, n. 1, p. 41-49, 1974

DescritoresAedes aegypti - Cell ; Aedes aegypti - Proteins

Data de Publicação:1974