@article{
author = "Živanović, Goran and Arenas, Conxita and Mestres, Francesc",
year = "2014",
abstract = "Using a well-adapted Drosophila subobscura population (Avala, Serbia), a
drastic experiment of inbreeding was carried out to assess whether the
expected level of homozygosity could be reached or if other evolutionary
forces affected the process. In general, no significant changes of
inversion (or arrangement) frequencies were detected after 12
brother-sister mating generations. Furthermore, no significant
differences were obtained between observed and expected (under the
inbreeding model) karyotypic frequencies. Thus, these results seemed to
indicate that the main evolutionary factor in the experiment was
inbreeding. However, in the G(12) generation, complete chromosomal
fixation was reached only in two out of the eight final inbred lines. In
these lines, the chromosomal compositions were difficult to interpret,
but they could be likely a consequence of adaptation to particular
laboratory conditions (constant 18 degrees C, food, light period, etc.).
Finally, in a second experiment, the inbred lines presented higher
fertility at 18 degrees C than at 13 degrees C. Also, there was a
significant line effect on fertility: inbred line number 6 (A(1), J(1),
U(1) under bar+(2) under bar; U(1) under bar+(2) under bar+(6) under
bar, E-8, and O (3) under bar (+(4) under bar+(7) under bar)) presented
the highest values, which maybe the result of an adaptation to
laboratory conditions. Thus, the results obtained in our experiments
reflect the adaptive potential of D. subobscura inversions.",
journal = "Genome",
title = "Inbreeding and thermal adaptation in Drosophila subobscura",
number = "9",
volume = "57",
doi = "10.1139/gen-2014-0149",
pages = "481-488"
}
