Sophie Echeynié   Are you Sophie Echeynié?  Claim your profile
Publications (1)9.74 Total impact    • Source     [show
abstract] [hide abstract]     ABSTRACT: The green lineage is
reportedly 1,500 million years old, evolving shortly after the
endosymbiosis event that gave rise to early photosynthetic
eukaryotes. In this study, we unveil the complete genome
sequence of an ancient member of this lineage, the unicellular
green alga Ostreococcus tauri (Prasinophyceae). This
cosmopolitan marine primary producer is the world's smallest
free-living eukaryote known to date. Features likely reflecting
optimization of environmentally relevant pathways, including
resource acquisition, unusual photosynthesis apparatus, and
genes potentially involved in C(4) photosynthesis, were
observed, as was downsizing of many gene families. Overall, the
12.56-Mb nuclear genome has an extremely high gene density, in
part because of extensive reduction of intergenic regions and
other forms of compaction such as gene fusion. However, t