Fig. 8.

Requirement of DAN-h1, but not DAN-i1, for specifically odor-fructose association. a Silencing of DAN-h1 by means of Kir2.1::GFP expression leads to an impairment in odor-fructose association (left) (these data include the odor-fructose association data shown in Fig. 3a), but not in odor-^lowsalt (middle) and not in odor-amino-acid association (right). b Silencing DAN-i1 does not impair association of odor with any of these three rewards (odor-fructose association data include those shown in Fig. 4a). Likewise, odor-arabinose association as well as odor-sorbitol association is unaffected by silencing of DAN-i1 (Supplementary Fig. 15). The preference scores underlying the associative performance indices can be found in Supplementary Fig. 14. c From left to right, schematics of the indicated association tasks are shown. The green, light blue, and brown circles indicate the fructose, odor-^lowsalt, and amino-acid reward, respectively. Other details as in Fig. 3