6533b7d2fe1ef96bd125f858
RESEARCH PRODUCT
Patterns of puffing activity and chromosomal polymorphism in Drosophila subobscura : 3. Puffing activity depression by inbreeding.
R. De FrutosL. PascualAmparo Latorresubject
GeneticsPolytene chromosomePlant biochemistryGeneticsChromosomal polymorphismGeneral MedicineBiologyAgronomy and Crop ScienceInbreedingDrosophila subobscuraBiotechnologyHybriddescription
The effect of inbreeding on the puffing patterns of polytene chromosomes of Drosophila subobscura was analysed. Puffing activity was studied in two strains of D. subobscura: one which had been subject to inbreeding for 288 generations, and in the hybrids from a cross between them. A strong overall decrease in puffing activity was found in the inbred line. In general, hybrids behaved in a similar way to the inbred line or showed activity intermediate between the two lines. The fertility and viability of the two homozygous lines and of the hybrids were also determined. These parameters of fitness are very low in the inbred line. Hybrids displayed intermediate behaviour.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1984-11-01 | TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik |