Chalking up a marine blooming alga: Genome fills a gap in the tree of life

Carbon dioxide is released when the calcium carbonate "armor" of the photosynthetic alga Emiliania huxleyi forms, but Ehux can trap as much as 20 percent of organic carbon derived from CO2 in some marine ecosystems. Its versatility in either contributing to primary production or adding to CO2 emissions makes Ehux a critical player in the marine carbon cycle. The Ehux genome sequence has now been compared with other algal sequences.

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