X and Y chromosomes of Aedes aegypti (L.) distinguished by Giemsa C-banding
Autor(es): Newton M E,Southern D I,Wood R J
Resumo: A 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-Chave: Developmental biology; Banding pattern; Essential difference; Centromere region; Distinctive banding
Imprenta: Chromosoma, v. 49, n. 1, p. 41-49, 1974
Identificador do objeto digital: 10.1007/BF00284986
Descritores: Aedes aegypti - Cell ; Aedes aegypti - Proteins
Data de publicação: 1974
