Experimental evolution of learning ability in fruit flies Export

@article{citeulike:4007232, abstract = {10.1073/pnas.222371199 The presence of genetic variation for learning ability in animals opens the way for experiments asking how and under what ecological circumstances improved learning ability should evolve. Here we report experimental evolution of learning ability in . We exposed experimental populations for 51 generations to conditions that we expected to favor associative learning with regard to oviposition substrate choice. Flies that learned to associate a chemical cue (quinine) with a particular substrate, and still avoided this substrate several hours after the cue had been removed, were expected to contribute more alleles to the next generation. From about generation 15 on, the experimental populations showed marked ability to avoid oviposition substrates that several hours earlier had contained the chemical cue. The improved response to conditioning was also expressed when the flies were faced with a choice of novel media. We demonstrate that these behavioral changes are caused by the evolution of both a higher learning rate and a better memory.}, author = {Mery, Frederic and Kawecki, Tadeusz J.}, citeulike-article-id = {4007232}, citeulike-linkout-0 = {http://dx.doi.org/10.1073/pnas.222371199}, citeulike-linkout-1 = {http://www.pnas.org/content/99/22/14274.full.abstract}, citeulike-linkout-2 = {http://www.pnas.org/content/99/22/14274.full.full.pdf}, citeulike-linkout-3 = {http://view.ncbi.nlm.nih.gov/pubmed/12391295}, citeulike-linkout-4 = {http://www.hubmed.org/display.cgi?uids=12391295}, day = {29}, doi = {10.1073/pnas.222371199}, journal = {Proceedings of the National Academy of Sciences of the United States of America}, keywords = {behavior, drosophila, evolution, learningmemory}, month = {October}, number = {22}, pages = {14274--14279}, posted-at = {2009-02-04 13:09:47}, priority = {2}, title = {Experimental evolution of learning ability in fruit flies}, url = {http://dx.doi.org/10.1073/pnas.222371199}, volume = {99}, year = {2002} }

TY - JOUR ID - citeulike:4007232 L3 - citeulike-article-id:4007232 N2 - 10.1073/pnas.222371199 The presence of genetic variation for learning ability in animals opens the way for experiments asking how and under what ecological circumstances improved learning ability should evolve. Here we report experimental evolution of learning ability in . We exposed experimental populations for 51 generations to conditions that we expected to favor associative learning with regard to oviposition substrate choice. Flies that learned to associate a chemical cue (quinine) with a particular substrate, and still avoided this substrate several hours after the cue had been removed, were expected to contribute more alleles to the next generation. From about generation 15 on, the experimental populations showed marked ability to avoid oviposition substrates that several hours earlier had contained the chemical cue. The improved response to conditioning was also expressed when the flies were faced with a choice of novel media. We demonstrate that these behavioral changes are caused by the evolution of both a higher learning rate and a better memory. IS - 22 JF - Proceedings of the National Academy of Sciences of the United States of America EP - 14279 TI - Experimental evolution of learning ability in fruit flies VL - 99 SP - 14274 KW - behavior KW - drosophila KW - evolution KW - learningmemory AU - Mery, Frederic AU - Kawecki, Tadeusz PY - 2002/10/29/ UR - http://dx.doi.org/10.1073/pnas.222371199 ER -