Differential Occurrence Of Chromosome Inversion Polymorphisms Among Muller's Elements In Three Species Of The Tripunctata Group Of Drosophila, Including A Species With Fast Chromosomal Evolution.

dc.creatorBrianti, Mitsue T
dc.creatorAnanina, Galina
dc.creatorKlaczko, Louis B
dc.date2013-Jan
dc.date2015-11-27T13:31:19Z
dc.date2015-11-27T13:31:19Z
dc.date.accessioned2018-03-29T01:17:09Z
dc.date.available2018-03-29T01:17:09Z
dc.identifierGenome / National Research Council Canada = Génome / Conseil National De Recherches Canada. v. 56, n. 1, p. 17-26, 2013-Jan.
dc.identifier1480-3321
dc.identifier10.1139/gen-2012-0074
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/23379335
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200469
dc.identifier23379335
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300702
dc.descriptionDetailed chromosome maps with reliable homologies among chromosomes of different species are the first step to study the evolution of the genetic architecture in any set of species. Here, we present detailed photo maps of the polytene chromosomes of three closely related species of the tripunctata group (subgenus Drosophila): Drosophila mediopunctata, D. roehrae, and D. unipunctata. We identified Muller's elements in each species, using FISH, establishing reliable chromosome homologies among species and D. melanogaster. The simultaneous analysis of chromosome inversions revealed a distribution pattern for the inversion polymorphisms among Muller's elements in the three species. Element E is the most polymorphic, with many inversions in each species. Element C follows; while the least polymorphic elements are B and D. While interesting, it remains to be determined how general this pattern is among species of the tripunctata group. Despite previous studies showing that D. mediopunctata and D. unipunctata are phylogenetically closer to each other than to D. roehrae, D. unipunctata shows rare karyotypic changes. It has two chromosome fusions: an additional heterochromatic chromosome pair and a pericentric inversion in the X chromosome. This especial conformation suggests a fast chromosomal evolution that deserves further study.
dc.description56
dc.description17-26
dc.languageeng
dc.relationGenome / National Research Council Canada = Génome / Conseil National De Recherches Canada
dc.relationGenome
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectChromosome Inversion
dc.subjectDrosophila
dc.subjectEvolution, Molecular
dc.subjectIn Situ Hybridization, Fluorescence
dc.subjectKaryotype
dc.subjectPhylogeny
dc.subjectPhysical Chromosome Mapping
dc.subjectPolymorphism, Genetic
dc.subjectPolytene Chromosomes
dc.titleDifferential Occurrence Of Chromosome Inversion Polymorphisms Among Muller's Elements In Three Species Of The Tripunctata Group Of Drosophila, Including A Species With Fast Chromosomal Evolution.
dc.typeArtículos de revistas


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