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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Format: | Article |
Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2002-07-01
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Series: | Memorias do Instituto Oswaldo Cruz |
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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. |
first_indexed | 2024-03-12T08:47:11Z |
format | Article |
id | doaj.art-cabf8a2c684e4b16b572b35c005bfc0a |
institution | Directory Open Access Journal |
issn | 0074-0276 1678-8060 |
language | English |
last_indexed | 2024-03-12T08:47:11Z |
publishDate | 2002-07-01 |
publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
record_format | Article |
series | Memorias do Instituto Oswaldo Cruz |
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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