Abstract
<jats:p><jats:italic>Emiliania huxleyi</jats:italic>(Lohm.) Hay and Mohler is a ubiquitous unicellular marine alga surrounded by an elaborate covering of calcite platelets called coccoliths. It is an important primary producer involved in oceanic biogeochemistry and climate regulation. Currently,<jats:italic>E. huxleyi</jats:italic>is separated into five morphotypes based on morphometric, physiological, biochemical, and immunological differences. However, a genetic marker has yet to be found to characterize these morphotypes. With the use of sequence analysis and denaturing gradient gel electrophoresis, we discovered a genetic marker that correlates significantly with the separation of the most widely recognized A and B morphotypes. Furthermore, we reveal that the A morphotype is composed of a number of distinct genotypes. This marker lies within the 3′ untranslated region of a coccolith associated protein mRNA, which is implicated in regulating coccolith calcification. Consequently, we tentatively termed this marker the coccolith morphology motif.</jats:p>
Original language | English |
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Pages (from-to) | 874-879 |
Number of pages | 0 |
Journal | Journal of Phycology |
Volume | 41 |
Issue number | 4 |
DOIs | |
Publication status | Published - Aug 2005 |