Download or read book Genomic Insights Into Mamiellophyceae Organismal Interactions written by Luiz Felipe Benites and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mamiellophyceae algae are the basis of coastal marine environments. Despite their ecological importance, the aspects related to their organismal interactions remain enigmatic. Single cell genomes (SCGs) from uncultivated samples can identify biotic associations, from sex to parasitism. In protists, sex is determined by the mating types (MTs), which are present in Ostreococcus. Here, we used genetic data to answer: How did MTs evolve in this group? Can we find interaction signals in the SCGs? The analysis of the MT genes suggests an old divergence of the Ostreococcus MTs, and the presence of new MTs. Finally, using SCGs, we identified new viruses associated with Ostreococcus. We provide here a framework for the evolution of sex in this class and, using SCGs, we have identified new associations in environmental Mamiellophyceae.