FIGURE 4. Gr63a1 mutants and the GAL4 and UAS controls are all indifferent to CO2 in a T-maze, whereas wild-type and heterozygous Gr63a1 flies show robust avoidance.

From the following article:

Two chemosensory receptors together mediate carbon dioxide detection in Drosophila

Walton D. Jones, Pelin Cayirlioglu, Ilona Grunwald Kadow & Leslie B. Vosshall

Nature 445, 86-90(4 January 2007)

doi:10.1038/nature05466

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This deficit is rescued in Gr21a-GAL4/UAS-Gr63a; Gr63a1 flies. Mean avoidance plusminus s.e.m. is indicated (n = 15). Statistical significance was calculated using a Tukey HSD test comparing all pairs of means (P < 0.01). Bars labelled with different letters are significantly different.

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