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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

Dissecting host-associated communities with DNA barcodes.

Christopher C M Baker¹, Leonora S Bittleston¹, Jon G Sanders¹

¹Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences

|August 3, 2016

Summary

This summary is machine-generated.

DNA barcoding and metabarcoding reveal symbiotic communities in plants and animals. These genetic methods identify species, classify new ones, and track evolutionary histories, enhancing ecological studies.

Keywords:

Cephalotes DNA barcoding Nepenthes Vachellia drepanolobium metabarcoding species interactions

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Area of Science:

Ecology
Genetics
Evolutionary Biology

Background:

Symbiotic interactions are fundamental to ecosystems.
Traditional methods struggle to identify and classify diverse symbiotic organisms.
DNA barcoding offers a molecular tool for species identification.

Purpose of the Study:

To illustrate the utility of DNA barcoding and metabarcoding in studying symbiotic interactions.
To showcase applications in diverse host-symbiont systems.
To highlight the role of genetic methods in ecological and evolutionary research.

Main Methods:

DNA barcoding and metabarcoding for symbiont identification and community characterization.
Application to arthropod communities in ant-plants (Vachellia drepanolobium).
Analysis of arthropod and protozoan inquilines in Nepenthes pitcher plants.
Investigation of gut bacterial communities in Cephalotes ants.

Main Results:

Demonstrated effectiveness of DNA barcoding for identifying symbionts, including undescribed species.
Showcased rapid characterization of entire symbiont communities using metabarcoding.
Enabled simultaneous assessment of symbiont and host evolutionary histories.

Conclusions:

DNA barcoding and metabarcoding are invaluable tools for studying host-symbiont interactions.
These genetic methods facilitate ecological signal isolation and evolutionary analyses.
Future advancements in sequencing and computation will further expand their utility, especially with flexible approaches to genetic loci and genomic data.