Worker sterility - Code and data

Worker sterility - Code and dat

Experimental results and theoretical predictions.

<p>Red and blue colourings correspond to genes of maternal and paternal origin, respectively. Orange and brown colourings correspond to genes expressed in the pup and the mother, respectively. Gray colouring corresponds to genes contributing to the phenotype but not considered in the current experiment. Arrowed and crossed-out rectangles correspond to expressed and silenced genes, respectively. All possible pairings between the wild type <i>Grb10</i> and the loss-of-function mutant <i>Grb10KO</i> in the pup and mother are presented in a 2 × 2 matrix. In each cell, we indicate (i) the experimental result in white over grey background and (ii) the theoretical prediction in black. The amount of milk a pup obtains results from a tension between offspring demand and maternal supply. Eliminating genes that maintain this tension (by rendering them nonfunctional) alters the amount of milk the pup obtains. (A) If the mother is more related to the recipients of allo-maternal care through her father, then in the pup, demand-inhibitor (DI) genes should be paternally silenced and demand-enhancer (DE) genes should be maternally silenced; in the mother, supply-inhibitor (SI) genes should be maternally silenced and supply-enhancer (SE) genes should be paternally silenced; and so, as <i>Grb10</i> is maternally expressed in pup and mother, this gene is predicted to be a DI in the pup and a SE in the mother, and the corresponding predicted 2 × 2 matrix of pup weights exactly matches that observed in the experiment. (B) If the mother is more related to the recipients of allo-maternal care through her mother, then in the pup, DI genes should be paternally silenced and DE genes should be maternally silenced; in the mother, SI genes should be paternally silenced and SE genes should be maternally silenced; and so, as <i>Grb10</i> is maternally expressed in pup and mother, this gene is predicted to be a DI in the pup and a SI in the mother, and the corresponding predicted 2 × 2 matrix of pup weights only partially matches that observed in the experiment. Accordingly, the kinship theory suggests that, in the natural setting in which GI has evolved, the mother is more related to the recipients of her allo-maternal care through her father than through her mother.</p

Simulation code: Conditions for the expected local frequency of helpers to increase.

This is c++ code which was used to produce simulation data presented in Figure 3

Incidence of larval egg cannibalism in Formica ants

Incidence of larval egg cannibalism, nestmate relatedness, larvae size and larvae sex ratios in eight species of Formica an

Simulation codes from Intrafamily and intragenomic conflicts in human warfare

Codes for individual-based simulation

Simulation code: The effect of natural selection on helping in large populations

This is c++ code which was used to produce the simulation data presented in Figure 2

Fig1

Colony forming unit counts for strains competing in two-way competitions and corrected proportions accounting for the evolution of de novo cheats

Fig2

Colony forming unit counts for a ten day evolution experiment, where proportions of all three strain (loner, cooperator, and defector) cycle over time

Resource supply and the evolution of public-goods cooperation in bacteria-6

M colony morphology (i.e., biofilm SM density/[biofilm SM density + WS density]). These data show that selection for biofilm-dwelling SM, rather than SM , peaked at intermediate resource supply.<p><b>Copyright information:</b></p><p>Taken from "Resource supply and the evolution of public-goods cooperation in bacteria"</p><p>http://www.biomedcentral.com/1741-7007/6/20</p><p>BMC Biology 2008;6():20-20.</p><p>Published online 14 May 2008</p><p>PMCID:PMC2409295.</p><p></p

Invasion of bacteriocin producer and an isogenic non producing mutant that does not produce under a range of different starting frequencies

Colony counts for competition assays between bacteriocin producing, non-producing, and sensitive strains, with relative fitness calculations. Competitions include both direct (in the same tube) and indirect (separate tubes) data