Distribution of NAPs among 172 sampled eukaryotic genomes.

The evolutionary relationships between the sampled species, represented in a cladogram, were constructed from recent bibliographical references (see Materials and methods section). Species names were colored according to the taxonomic groups to which they belong. The presence of each NAP in each taxon is shown with symbols. Black symbols indicate NAP genes that are found within genome clusters of NAP genes. For illustration purposes, some clades of species (e.g. Metazoa) were collapsed into a single terminal leaf. For detailed information about the taxonomic categories and the NAP profiles and NAP cluster status of each species, see Table A in S1 Supporting information. Autotrophic and fungal-like osmotrophic lineages are also indicated (see Table A in S1 Supporting information for information about the nutrient acquisition strategy of each taxon).