Life-cycle modification in open oceans accounts for genome variability in a cosmopolitan phytoplankton.
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ABSTRACT:
SUBMITTER: von Dassow P
PROVIDER: S-EPMC4438323 | biostudies-literature | 2015 Jun
REPOSITORIES: biostudies-literature
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Life-cycle modification in open oceans accounts for genome variability in a cosmopolitan phytoplankton.
von Dassow Peter P John Uwe U Ogata Hiroyuki H Probert Ian I Bendif El Mahdi el M Kegel Jessica U JU Audic Stéphane S Wincker Patrick P Da Silva Corinne C Claverie Jean-Michel JM Doney Scott S Glover David M DM Flores Daniella Mella DM Herrera Yeritza Y Lescot Magali M Garet-Delmas Marie-José MJ de Vargas Colomban C
The ISME journal 20141202 6
Emiliania huxleyi is the most abundant calcifying plankton in modern oceans with substantial intraspecific genome variability and a biphasic life cycle involving sexual alternation between calcified 2N and flagellated 1N cells. We show that high genome content variability in Emiliania relates to erosion of 1N-specific genes and loss of the ability to form flagellated cells. Analysis of 185 E. huxleyi strains isolated from world oceans suggests that loss of flagella occurred independently in line ...[more]
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