Chromosome variability in Brazilian populations of Drosophila buzzatii (Diptera, Drosophilidae)
Rev. bras. biol
;
52(4): 555-61, nov. 1992. tab, mapas
Article
in English
| LILACS
| ID: lil-134375
ABSTRACT
Analysis of 28 strains of Drosophila buzzatii from six different localities revealed that populations from southern Brazil apparently differ from northeastern populations in chromosome structure. Of the 16 polymorphic chromosome inversions detected in this species, only two (2j and 5c2) were present in southern populations. The Northeastern populations were the first of this species found not to have the 2j inversion. This suggests that the populations of Drosophila buzzatii may have lost chromosome polymorphism during dispersion, supporting the idea that the current geographic distribution of this species in South America is due to active dispersion
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Index:
LILACS (Americas)
Main subject:
Genetic Variation
/
Chromosome Aberrations
/
Drosophila
Limits:
Animals
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Rev. bras. biol
Journal subject:
Biology
Year:
1992
Type:
Article
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