Author statement
JB, LMC, and CW designed and supervised the study. LMC, DN, AU & CW did the experimental breeding. LMC, DN & AU sampled the juveniles from the wild and LMC determined their growth. JB & LMC were responsible for the parental assignments and the genetic sexing. JB & SSC performed bio-informatic analysis. JB & CW performed the statistical analyses and wrote the manuscript. All authors revised and approved the final manuscript for publication.