Colour polymorphism in Drosophila mediopunctata: genetic (chromosomal) analysis and nonrandom association with chromosome inversions

dc.creatorHatadani, LM
dc.creatorBaptista, JCR
dc.creatorSouza, WN
dc.creatorKlaczko, LB
dc.date2004
dc.dateDEC
dc.date2014-11-15T11:55:16Z
dc.date2015-11-26T17:19:52Z
dc.date2014-11-15T11:55:16Z
dc.date2015-11-26T17:19:52Z
dc.date.accessioned2018-03-29T00:07:31Z
dc.date.available2018-03-29T00:07:31Z
dc.identifierHeredity. Nature Publishing Group, v. 93, n. 6, n. 525, n. 534, 2004.
dc.identifier0018-067X
dc.identifierWOS:000225354800002
dc.identifier10.1038/sj.hdy.6800544
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78993
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/78993
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78993
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283003
dc.descriptionThe presence of three dark spots on the abdomen is typical of the tripunctata group of Drosophila, which is the second largest Neotropical group, with 56 species. In some species, such as D. mediopunctata, the colour pattern varies considerably: ranging from flies showing no spots up to flies with three dark spots. In this paper, we present a genetic (chromosomal) analysis of this character showing that this colour polymorphism is genetically determined mainly by the second chromosome. Since this chromosome is the most polymorphic for inversions in this species, we also examined the influence of the inversions on this character. We used strains in which different second chromosomes were placed on the same genetic background and the offspring between them. We found a nonrandom association between the number of spots and the inversions PA0 and PC0. Thus, our results are consistent with the idea that the factors or genes determining a conspicuous polymorphism are likely to be associated, forming a supergene, and this association would be most efficiently accomplished through a chromosome inversion. Moreover, this is the first time that an association between a conspicuous morphological polymorphism and chromosome inversions has been described.
dc.description93
dc.description6
dc.description525
dc.description534
dc.languageen
dc.publisherNature Publishing Group
dc.publisherLondon
dc.publisherInglaterra
dc.relationHeredity
dc.relationHeredity
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectpigmentation
dc.subjectsupergene
dc.subjectcolour polymorphism
dc.subjecttripunctata
dc.subjectgene arrangement
dc.subjectconspicuous polymorphism
dc.subjectBody-size
dc.subjectAbdominal Pigmentation
dc.subjectLinkage Disequilibrium
dc.subjectPhenotypic Plasticity
dc.subjectNatural-populations
dc.subjectGrowth Temperature
dc.subjectExtra Bristles
dc.subjectMelanogaster
dc.subjectCharacter
dc.subjectBuzzatii
dc.titleColour polymorphism in Drosophila mediopunctata: genetic (chromosomal) analysis and nonrandom association with chromosome inversions
dc.typeArtículos de revistas


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