An evaluation of primers for detecting denitrifiers via their functional genes

Research output: Contribution to journalArticle

Abstract

Microbial populations provide nitrogen cycling ecosystem services at the nexus of agriculture, environmental quality and climate change. Denitrification, in particular, impacts socio-environmental systems in both positive and negative ways, through reduction of aquatic and atmospheric nitrogen pollution, but also reduction of soil fertility and production of greenhouse gases. However, denitrification rates are quite variable in time and space, and therefore difficult to model. Microbial ecology is working to improve the predictive ecology of denitrifiers by quantifying and describing the diversity of microbial functional groups. However, metagenomic sequencing has revealed previously undescribed diversity within these functional groups, and highlighted a need to reevaluate coverage of existing DNA primers for denitrification functional genes. We provide here a comprehensive in silico evaluation of primer sets that target diagnostic genes in the denitrification pathway. This analysis makes use of current DNA sequence data available for each functional gene. It contributes a comparative analysis of the strengths and limitations of each primer set for describing denitrifier functional groups. This analysis identifies genes for which development of new tools is needed, and aids in interpretation of existing datasets, both of which will facilitate application of molecular methods to further develop the predictive ecology of denitrifiers.

Original languageEnglish (US)
Pages (from-to)1196-1210
Number of pages15
JournalEnvironmental Microbiology
Volume21
Issue number4
DOIs
StatePublished - Apr 2019

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Denitrification
denitrification
Ecology
functional group
gene
Genes
Nitrogen
genes
ecology
DNA
Metagenomics
DNA Primers
microbial ecology
Climate Change
nitrogen
DNA primers
environmental quality
greenhouse gases
Agriculture
ecosystem service

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

Cite this

An evaluation of primers for detecting denitrifiers via their functional genes. / Ma, Yanjun; Zilles, Julie; Kent, Angela D.

In: Environmental Microbiology, Vol. 21, No. 4, 04.2019, p. 1196-1210.

Research output: Contribution to journalArticle

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