[Coral-List] zooxanthella genome

Douglas Fenner douglasfennertassi at gmail.com
Thu Nov 5 22:10:20 EST 2015

The *Symbiodinium kawaguii *genome illuminates dinoflagellate gene
expression and coral symbiosis.

Dinoflagellates are important components of marine ecosystems and essential
coral symbionts, yet little is known about their genomes. We report here on
the analysis of a high-quality assembly from the 1180-megabase genome
of *Symbiodinium
kawagutii*. We annotated protein-coding genes and identified
gene families. No whole-genome duplication was observed, but instead we
found active (retro)transposition and gene family expansion, especially in
processes important for successful symbiosis with corals. We also
documented genes potentially governing sexual reproduction and cyst
formation, novel promoter elements, and a microRNA system potentially
regulating gene expression in both symbiont and coral. We found biochemical
complementarity between genomes of *S. kawagutii* and the anthozoan
*Acropora,* indicative of host-symbiont coevolution, providing a resource
for studying the molecular basis and evolution of coral symbiosis.

Science 350: 691-694.  Nov 6, 2015.


Free with registration.

Douglas Fenner
Consultant, corals, coral reefs, coral identification
"have regulator, will travel"
PO Box 7390
Pago Pago, American Samoa 96799  USA

phone 1 684 622-7084

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"Belief in climate change is optional, participation is not."- Jim Beever.
  "Everyone is entitled to their own opinion, but not to their own facts."-
Daniel Patrick Moynihan.

Exxon and probably other fossil fuel companies have long known that global
warming is real and mostly caused by humans, because their own scientists
did some of the earliest good studies that showed it was true.  But they
decided to fund a denial campaign to protect their profits, which has
worked very well.



Climate change could cost trillions more in damage, because of thawing
Arctic permafrost.   (a mere $3-166 Trillion, while even without Arctic
warming, climate change is estimated to cost $326 Trillion globally.  The
entire world economy is only about $72-85 Trillion a year.)


website:  http://independent.academia.edu/DouglasFenner

blog: http://ocean.si.edu/blog/reefs-american-samoa-story-hope

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