Definition
Metagenome is the entire collection of genetic material of a microbial community.
Species diversity of a community is defined as the number of species in the community, and in metagenomics, it is often estimated using the number of operational taxonomic units (OTUs).
Functional diversity of a microbial community refers to the variety of functions and biological processes encoded by its metagenome.
Introduction
Microbial communities are the major resources for genetic and metabolic diversity. Metagenomics, the direct analysis of DNA from environmental samples, has been applied to studies of microbial communities in various environments, including soil, ocean water, and human bodies, and has shown the impact of microbial organisms on almost every aspect of life on Earth. Some microbial communities have rather simple structures; for example, a biofilm from the acid mine drainage (AMD) was shown to contain merely several species (Tyson et al. 2004). Others are more complex,...
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Ye, Y. (2012). Metabolic and Species Diversity Analysis for Metagenomics. In: Nelson, K. (eds) Encyclopedia of Metagenomics. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6418-1_88-4
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DOI: https://doi.org/10.1007/978-1-4614-6418-1_88-4
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