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eDNA (Environmental DNA)

Why is it in the news?

  • Researchers at the Laboratory for the Conservation of Endangered Species (LaCONES) developed a new method for assessing total biodiversity.
  • LaCONES is a laboratory under the CSIR-Centre for Cellular and Molecular Biology (CCMB).

More about the news

  • The method involves sequencing eDNA (Environmental DNA) from samples like water, soil, or air.
  • This method allows for non-destructive and non-invasive biological monitoring to assess biodiversity.
  • It provides a way to analyse the genetic material present in environmental samples to understand the diversity of species in an ecosystem without direct observation or sampling of organisms.


eDNA consists of DNA shed by all organisms into their surroundings naturally during their lifetime or after death.

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