Fig. 1From: Increased exposure to acute thermal stress is associated with a non-linear increase in recombination frequency and an independent linear decrease in fitness in DrosophilaSchematic representation of the two-step crossing scheme using ebony (e) and rough (ro). Females used in each cross are shown on the left, males on the right. Boxed backcross 1 progeny (BC1) correspond to the two recombinant genotypes that can be visually identified using our screenBack to article page