mn_GreenBluePI phenotype

Description

Mean preference index (PI) over trials of the innate green-versus-blue light preference of females of the DGRP line (no cross) in a T-maze: 100 females (raised at 25 °C, 14:10 h light:dark, starved 8 h) chose for 20 s between a green (525 nm, one layer of 3x neutral density filter) and a blue (450 nm, three layers) LED light; PI = (NG - NB)/(NG + NB), number of flies in the green and blue tubes, from -1 (all blue) to +1 (all green); 5-12 trials per line; 54 lines (Figure 2—source data 1), column "PI". [No unit]

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