Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/55681
Type: Artigo de periódico
Title: Y-LINKED SUPPRESSORS OF THE SEX-RATIO TRAIT IN DROSOPHILA-MEDIOPUNCTATA
Author: DECARVALHO, AB
KLACZKO, LB
Abstract: X-linked meiotic drive causing female-biased progenies is known to occur in nine Drosophila species and is called 'sex-ratio'. In D. mediopunctata this trait is associated with the X:21 chromosome inversion and has variable expression. We describe here a powerful Y-linked suppressor system of sex-ratio expression in this species. There are two types of Y chromosomes (suppressor and nonsuppressor) and two types of X:21 chromosomes (suppressible and unsuppressible). Sex-ratio expression is suppressed in males with the 21 (suppressible)/Y-suppressor genotype, whereas the remaining three genotypes produce female-biased progenies.
Subject: DROSOPHILA MEDIOPUNCTATA
MEIOTIC DRIVE
SEX-RATIO
SEX RATIO EVOLUTION
Y CHROMOSOME
Country: Inglaterra
Editor: Nature Publishing Group
Rights: fechado
Date Issue: 1994
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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