Friday, August 13, 2010
Former lab-member publishes paper on intralocus sexual conflict on wing shape and wing size
As a follow-up to my previous blogpost about intralocus sexual conflict, it is worth pointing to a new and interesting study by a former lab-member and PhD-student: Jessica Abbott (now postdoc in Ted Morrow's lab in Uppsala). Jessica has studied intralocus sexual conflict over wing size and wing shape in Drosophila melanogaster, during her first postdoc in Adam Chippindale's laboratory at Queens University (Canada). The paper will appear in Journal of Evolutionary Biology, and it can be downloaded here (scroll down the list of publications to the bottom), for those who are interested in details. An abstract is posted below.
The fascinating topic of the evolution of wing shape and the selection pressure operating on wings have also been subject of several other studies in our laboratory, mainly related to natural selection and predation on Calopteryx-wings. Like Jessica, we (Shawn Kuchta, I and Sophia Engel) have been using landmark-based geometric morphometric techniques to quantify wing shape and have been used these measures to estimate the strength of natural selection on wings. More will follow, and in addition to sexual selection and intralocus sexual conflict, natural selection is also likely to play a major role in shaping wing size and wing shape in both fruitflies, damselflies and other insects.