Male courtship and mating ability for different C. elegans strains. (A) Male courtship was assayed as the number of body contacts and spicule insertions observed with females across 14 point-observations over a 9 hour period in mating arenas comprised of 14 females and a single male. (B) Mating ability was assayed as the number of females that were successfully fertilized in the courtship assay. Box-plots indicate the median and interquartile range (points beyond whiskers are candidate outlier values); horizontal lines indicate the grand mean across strains.
Murray et al. BMC Evolutionary Biology 2011 11:99 doi:10.1186/1471-2148-11-99