Transposable elements P and gypsy in natural populations of Drosophila willistoni
Genet. mol. biol
;
28(4): 734-739, Dec. 2005. ilus, mapas, tab
Article
in English
| LILACS
| ID: lil-451005
ABSTRACT
The presence and integrity of the P transposon and the gypsy retrotransposon in the genome of 18 samples of natural Drosophila willistoni populations collected from a large area of South America were Southern blot screened using Drosophila melanogaster probes. The aim of this screening was provide further knowledge-base on the geographical distribution of D. willistoni and to carry out an inter-population analysis of the P and gypsy elements present in the genomes of the populations analyzed. The fragment patterns obtained indicate that both the P and gypsy elements are ancient in the D. willistoni genome, but whereas the gypsy retroelement appears to be invariable and stable the P element varies between populations and appears to still have some capacity for mobilization.
Full text:
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Index:
LILACS (Americas)
Main subject:
DNA
/
DNA Transposable Elements
/
Drosophila
Limits:
Animals
Language:
English
Journal:
Genet. mol. biol
Journal subject:
Genetics
Year:
2005
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Santa Maria/BR
/
Universidade Federal do Rio Grande do Sul/BR
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