Departamento de Genética, Facultad de Ciencias Biológicas, Universidad de Valencia, Dr. Moliner 50, Burjasot, Valencia, Spain.
Theor Appl Genet. 1984 Nov;69(1):101-10. doi: 10.1007/BF00262552.
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.
研究了近亲繁殖对果蝇亚隐性多线染色体膨突模式的影响。在两个经过 288 代近亲繁殖的 D. subobscura 品系和它们杂交的杂种中，研究了膨突活性。在近交系中发现膨突活性总体上明显下降。一般来说，杂种的行为与近交系相似，或表现出两种品系之间的中间活性。还测定了两个纯合系和杂种的育性和活力。在近交系中，这些适应性参数非常低。杂种表现出中间行为。
