Algal endosymbionts as vectors of horizontal gene transfer in photosynthetic eukaryotes by Huan eQiu, Hwan Su eYoon, Debashish eBhattacharya

“…Photosynthesis in eukaryotes occurs in the plastid, an organelle that is derived from a single cyanobacterial primary endosymbiosis in the common ancestor of the supergroup Plantae (or Archaeplastida) that includes green, red, and glaucophyte algae and plants. …”
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The Ancient Link between G-Protein-Coupled Receptors and C-Terminal Phospholipid Kinase Domains by D. Johan van den Hoogen, Harold J. G. Meijer, Michael F. Seidl, Francine Govers

“…Here we reveal the sporadic occurrence of GPCR-PIPKs in all eukaryotic supergroups, except for plants. Notably, all species having GPCR-PIPKs are unicellular microorganisms that favor aquatic environments. …”
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