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Table 5 Re-mating behaviour

From: Experimental evolution under hyper-promiscuity in Drosophila melanogaster

Test

Male typea

Female typea

Generation

Risk ratio, SPR-:control (95 % CI)

χ

P

(a) Effects of SPR- deficiency in malesb

SPR- or C

WT

N/A

0.6 (0.3, 1.3)

1.7

0.19

Experimental evolution of males, generation 16

SPR- or C

WT

16

1.2 (0.8, 1.9)

0.9

0.35

Experimental evolution of males, generation 36b

SPR- or C

WT

36

1.4 (1.0, 1.8)

4.2

0.04

(b) Effects of SPR- deficiency in females

WT

SPR- or C

N/A

1.4 (0.9, 2.3)

2.2

0.14

Experimental evolution of females

WT

SPR- or C

26

2.8 (2.0, 4.1)

30.6

<0.0001

(c) Effects of SPR- deficiency in within-treatment pairs

SPR- or C

SPR- or C

N/A

2.6 (1.3, 5.1)

7.7

0.006

Experimental evolution in within-treatment pairs

SPR- or C

SPR- or C

26

2.3 (1.6, 3.3)

20.7

<0.0001

  1. aMales and females were SPR- or genetically matched controls (C), or wild-type (WT)
  2. bFull model details are given in Additional file 1: Table S4
  3. Effects of the SPR- deficiency itself in unselected flies, or experimental evolution in SPR- and control populations, on (a) experimental male ability to inhibit re-mating by wild-type females, or (b, c) experimental female propensity to re-mate with wild-type males following a mating with a (b) wild-type male or (c) experimental male of the same treatment group