Behavioral effects induced by disturbing the GABA
R or G-proteins within the ORNs. (A,B,C) Response index of flies challenged with either spearmint, citronella or octanol in a T-maze without pre-exposure (hollow bars) or after pre-exposure (filled bars) for 5 min to the same odor. (Cont: Or83b,GA/CS; Or83b,GA/GBi-RNAi and Or83b,GA/UAS-PTX). For all groups, n = 10 batches of 10 flies/batch (100 flies per group). Values are means + SEM. Three types of comparisons have been performed: first, comparisons within the same genotype are made between those without and after pre-exposure; second, comparisons between control and the different genotypes are made for the "without pre-exposure condition" (all groups are non significant, except UAS-PTX for citronella); and third, comparisons between control and the different genotypes are made for the "after pre-exposure condition" (all groups are significantly different). (* P < 0,05; ** P < 0,001; *** P < 0,0001, Mann-Whitney U-test).