The largest glomeruli displayed primary afferent reorganization within a restricted space during chronic odorant exposure.

<p>The figure shows the expression of I7tauGFP glomeruli in non-exposed mice and mice exposed to heptaldehyde. Notice that primary afferents redistribute in variable ways between the largest and supernumerary glomeruli (arrows) in exposed mice. The effect was seen in all half bulbs analyzed (n = 10 for each condition) when mice were exposed from postnatal day (PD) 0 to PD5. In mice exposed from PD10 to PD15 the effect was seen in 8 out of 10 total half bulbs analyzed. Scale bar 100 µm; inset square is 2× magnification.