Fig. 2

Algal genes in Guillardia theta and Goniomonas avonlea. The diagram shows the distribution of topologies observed in Go. avonlea homologs to 508 “algal” endosymbiotic gene transfers predicted by Curtis et al. [18] in Gu. theta. Phylogenies were evaluated and sorted based on the relative positioning of Go. avonlea and Gu. theta (and other Cryptophyceae) and their relationship to Archaeplastida lineages and secondarily photosynthetic taxa. An exclusive relationship indicates a direct relationship with an Archaeplastida lineage while an inclusive one indicates there are intervening secondarily photosynthetic taxa. A given topological pattern was only assigned if the corresponding UFboot support was greater than 80%. Of the 285 homologs identified in Go. avonlea, only six show an affinity to Cryptophyceae and red algae