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Table 4 Copulation duration

From: Experimental evolution under hyper-promiscuity in Drosophila melanogaster

Test Male typea Female typea Generation F df P
(a) Effects of SPR- deficiency in malesb SPR- or C WT N/A 0.2 1,95 0.64
Experimental evolution of males SPR- or C WT 16 14.6 1,6.2 0.0083
Experimental evolution of males SPR- or C WT 36 6.6 1,6.8 0.038
(b) Effects of SPR- deficiency in females, first mating WT SPR- or C N/A 13.5 1,78 0.0004
Experimental evolution of females WT SPR- or C 26 0.9 1,6.0 0.37
(c) Effects of SPR- deficiency in within-treatment pairs SPR- or C SPR- or C N/A 3.7 1,49 0.059
Experimental evolution in within-treatment pairs SPR- or C SPR- or C 26 67.8 1,6.5 0.0001
  1. aMales and females were SPR- or genetically matched controls (C), or wild-type (WT)
  2. bCopulation duration did not vary between blocks (F1,95 = 0.0, P = 0.91)
  3. Effects of the SPR- deficiency itself in unselected flies, or experimental evolution in SPR- and control populations, on copulation duration in virgin flies for (a) experimental males paired with wild-type females, (b) experimental females paired with wild-type males, or (c) experimental males and females paired within treatment and replicate population