Polytene chromosome map and inversion polymorphism in Drosophila mediopunctata

Autor:	Galina Ananina, Alexandre A Peixoto, Wilma N Souza, Louis B Klaczko
Jazyk:	angličtina
Rok vydání:	2002
Předmět:	linkage disequilibrium gene order cytogenetic analysis chromosome mapping Microbiology QR1-502 Infectious and parasitic diseases RC109-216
Zdroj:	Memorias do Instituto Oswaldo Cruz, Vol 97, Iss 5, Pp 691-694 (2002)
Druh dokumentu:	article
ISSN:	0074-0276 1678-8060
DOI:	10.1590/S0074-02762002000500019
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/cabf8a2c684e4b16b572b35c005bfc0a Zobrazit plný text záznamu View record in DOAJ