Extended Data Fig. 3: No scaling relationship was found between the logarithmically transformed estimated effective population size (Ne) and the logarithmically transformed genome size across 21 bacterial and two archaeal species.
From: Prochlorococcus have low global mutation rate and small effective population size
The generalized linear model (GLM) regression and the phylogenetic generalized least square (PGLS) regression of the 23 species are identical from what is presented in Fig. 3c. The Pagel’s λ among 23 species is near to 1, suggesting strong phylogenetic signal (that is, traits evolve in close association with the phylogeny). Thus, the scaling was further investigated at a lower taxonomic rank. Specifically, the 21 bacterial species were divided into two deep lineages, the Terrabacteria clade (seven species marked by green dots) and the Gracilicutes clade (14 species marked by blue dots), and both GLM and PGLS regression analyses were applied to each. Again, no scaling relationship between Ne and genome size was found for either Terrabacteria or Gracilicutes.
