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Models with unequal transition rates favor marine origins of Cyanobacteria and photosynthetic eukaryotes

2017-12-12
We re-analyzed a recently published dataset that recovered freshwater ancestry of Archaeplastida (plants and algae with primary plastids). We tested an ever-so-slightly more complex model and found that the MRCA of arachaeplastids was, in fact, marine. The results are detailed in this study just published in PNAS and are available here. This study raised all sorts of interesting questions that the Alverson and Beaulieu labs are currently following up on.