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Table 1 Derivation of the mean adaptive value of offspring for each of the three strategies of inheritance (biparental, maternal and paternal)

From: Sex-biased dispersal promotes adaptive parental effects

Environnement1

   

Offspring fitness

Father

Mother

Offspring

Case i

Number of cases i

Probability of case i

biparental

maternal

paternal

0/0

0/0

0/0

1

n1

p1

1

1

1

0/1

0/1

1/0

2

n2

p2

α

α

α

0/0

1/1

0/0

3

n3

p3

(1 + α)/2

α

1

0/1

1/0

1/0

4

n4

p4

(1 + α)/2

1

α

Total

   

20,000

1

wb = p1 + αp2 + (1+ α)(p3 + p4)/2

wm = p1 + p4 + α(p2 + p3)

wp = p1 + p3 + α(p2+ p4)

  1. 1 Values before the slash correspond to the plant model and after the slash to the animal model. In the plant model, the father is always in state 0, in the animal model, the offspring is always in state 0