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Diversity 2010, 2(7), 973-1014; doi:10.3390/d2070973

Methods to Estimate the Diversity in the Marine Photosynthetic Protist Community with Illustrations from Case Studies: A Review

UPMC Univ Paris 06, UMR 7621, LOMIC, Observatoire Océanologique, F-66651, Banyuls/mer, France
CNRS, UMR 7621, LOMIC, Observatoire Océanologique, F-66651 Banyuls/mer, France
Ecology and Evolution of Plankton, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
Author to whom correspondence should be addressed.
Received: 23 June 2010 / Revised: 9 July 2010 / Accepted: 10 July 2010 / Published: 16 July 2010
(This article belongs to the Special Issue Biological Diversity Assessed by Molecular Methods)
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We review the application of molecular methods to estimate biodiversity in the marine environment. All of the methods reviewed here, which are at the forefront of molecular research, can be applied to all organisms in all habitats, but the case studies used to illustrate the points are derived from marine photosynthetic eukaryotic protists. It has been accepted that we know less than 10% of the identified diversity in the marine microbial world and the marine micro- and pico-eukaryotes are no exception. Even the species that we think we can easily recognize are often poorly described, and even less is known of their life histories and spatial and temporal trends in their abundance and distribution. With new molecular and analytical techniques, we can advance our knowledge of marine biodiversity at the species level to understand how marine biodiversity supports ecosystem structure, dynamics and resilience. Biogeochemical reactions performed by marine photosynthetic microbial organisms constitute a major sustaining component of ecosystem functioning, and therefore, affect climate changes. New interpretations of how environmental, ecological and evolutionary processes control and structure marine ecosystem biodiversity can be made so that we can augment our understanding of biodiversity and ecosystem dynamics in especially the pico- and nano-fractions of the plankton as well as in the deep sea benthos, both of which are very difficult to study without good analytical methods. View Full-Text
Keywords: barcoding; fingerprinting; molecular methods; phytoplankton; probes; sequencing; taxonomy barcoding; fingerprinting; molecular methods; phytoplankton; probes; sequencing; taxonomy

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Medlin, L.K.; Kooistra, W.H.F. Methods to Estimate the Diversity in the Marine Photosynthetic Protist Community with Illustrations from Case Studies: A Review. Diversity 2010, 2, 973-1014.

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