Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata

Drosophila mediopunctata belongs to the tripunctata group, and is one of the commonest Drosophila species collected in some places in Brazil, especially in the winter. A standard map of the polytene chromosomes is presented. The breakpoints of the naturally occurring chromosomal rearrangements are m...

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Main Authors: Galina Ananina, Alexandre A Peixoto, Wilma N Souza, Louis B Klaczko
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2002-07-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000500019
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author Galina Ananina
Alexandre A Peixoto
Wilma N Souza
Louis B Klaczko
author_facet Galina Ananina
Alexandre A Peixoto
Wilma N Souza
Louis B Klaczko
author_sort Galina Ananina
collection DOAJ
description Drosophila mediopunctata belongs to the tripunctata group, and is one of the commonest Drosophila species collected in some places in Brazil, especially in the winter. A standard map of the polytene chromosomes is presented. The breakpoints of the naturally occurring chromosomal rearrangements are marked on the map. The distribution of breaking points through the chromosomes of D. mediopunctata is apparently non-random. Chromosomes X, II and IV show inversion polymorphisms. Chromosome II is the most polymorphic, with 17 inversions, 8 inversions in the distal region and 9 in the proximal region. Chromosome X has four different gene arrangements, while chromosome IV has only two.
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spelling doaj.art-cabf8a2c684e4b16b572b35c005bfc0a2023-09-02T16:25:40ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602002-07-0197569169410.1590/S0074-02762002000500019Polytene chromosome map and inversion polymorphism in Drosophila mediopunctataGalina AnaninaAlexandre A PeixotoWilma N SouzaLouis B KlaczkoDrosophila mediopunctata belongs to the tripunctata group, and is one of the commonest Drosophila species collected in some places in Brazil, especially in the winter. A standard map of the polytene chromosomes is presented. The breakpoints of the naturally occurring chromosomal rearrangements are marked on the map. The distribution of breaking points through the chromosomes of D. mediopunctata is apparently non-random. Chromosomes X, II and IV show inversion polymorphisms. Chromosome II is the most polymorphic, with 17 inversions, 8 inversions in the distal region and 9 in the proximal region. Chromosome X has four different gene arrangements, while chromosome IV has only two.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000500019linkage disequilibriumgene ordercytogenetic analysischromosome mapping
spellingShingle Galina Ananina
Alexandre A Peixoto
Wilma N Souza
Louis B Klaczko
Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
Memorias do Instituto Oswaldo Cruz
linkage disequilibrium
gene order
cytogenetic analysis
chromosome mapping
title Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
title_full Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
title_fullStr Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
title_full_unstemmed Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
title_short Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata
title_sort polytene chromosome map and inversion polymorphism in drosophila mediopunctata
topic linkage disequilibrium
gene order
cytogenetic analysis
chromosome mapping
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000500019
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AT alexandreapeixoto polytenechromosomemapandinversionpolymorphismindrosophilamediopunctata
AT wilmansouza polytenechromosomemapandinversionpolymorphismindrosophilamediopunctata
AT louisbklaczko polytenechromosomemapandinversionpolymorphismindrosophilamediopunctata