|Citation||Yannopoulos, G., Zabalou, S., Alahiotis, S.N. (1994). Distribution of P and hobo mobile elements in environmentally manipulated long-term Drosophila melanogaster cage populations. Hereditas 121(1): 87--102. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||The copy number and the chromosome positions of the P and hobo insertions were determined by means of in situ hybridization to polytene chromosomes, in five long-term Drosophila melanogaster cage populations kept for 18 years under different culture conditions (temperature and relative humidity). The analysis revealed that the copy number of both P and hobo elements were similar between the populations kept under the same culture conditions and significantly different among the populations maintained under different culture conditions. A tendency for similar distribution of these elements along the major chromosome arms was also observed in the populations of the same environmental manipulation. The distribution of the insertions along the chromosomes was not random for both the P and hobo elements; sites with high insertion frequencies were found (hot spots of occupation). Some of them were common in all cage populations while others were characteristic of the populations kept under the same conditions. Finally, fixed sites of occupation were also observed in all populations and refer mostly to hobo distribution. The data are discussed on the basis of the possible involvement of the P and hobo elements, in some way, to the adaptation process and speciation.|
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|Language of Publication||English|
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|Data from Reference|
|Natural transposons (2)|