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Ribosomal RNA Probes and Microarrays: Their Potential Use in Assessing Microbial Biodiversity

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Metfies, K. and Medlin, L. (2005): Ribosomal RNA Probes and Microarrays: Their Potential Use in Assessing Microbial Biodiversity , Methods in Enzymology, 395, 258-278. Ed. by E.A. Zimmer & E. Roalson, Elsevier. .
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Abstract:

The awareness that global biological diversity is impacted by numerous, mostly man-made threats has made biodiversity assessment an important scientific issue for decades. Biodiversity includes different levels of complexity, such as community diversity, habitat diversity and genetic diversity as well as species diversity. The application of molecular methods to answer ecological questions permits issues of biodiversity to be addressed at all levels. Microorganisms dominate global biological diversity in terms of their species numbers. However, their small size and limited morphological features make it challenging to obtain a comprehensive view of their biodiversity. The application of ribosomal RNA (rRNA) probes contributes significantly to the assessment of biodiversity at the molecular level. DNA microarrays offer a great potential to facilitate the application of molecular probes and other DNA analytic methods to answer ecological and biodiversity questions. We provide an introduction into the application of rRNA probes and DNA microarrays for the assessment of microbial biodiversity, and detailed protocols for the implementation of DNA microarrays.

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