Standardized gene count as a function of the relative distance (Mb) from the telomere along the chromosome (physical distances expressed in 20 bins).

Chromosomes were split in halves, a relative distance of 0.5 being the centre of the chromosome, and only one side was randomly sampled to avoid averaging patterns. Then, chromosomes were pooled per species. Each colour is a species. A loess regression was estimated for each species. Species presented in four plots for clarity. (TIF)