User:Mjbyrd2/sandbox

Source: Wikipedia, the free encyclopedia.
Environmental DNA (eDNA) is DNA that an organism leaves behind as it moves through an environment. Generally, eDNA follows a pattern of exponential decay over time. The fish above leaves its eDNA behind as it moves through the aquatic environment. The eDNA stays behind in the environment, and slowly dissipates over time.

Environmental DNA or eDNA is

subenvironments.[4]

Collection

Ancient environments

Terrestrial sediments

The importance of eDNA analysis stemmed from the recognition of the limitations presented by culture-based studies.[3] Organisms have adapted to thrive in the specific conditions of their natural environments. Although scientists work to mimic these environments, many microbial organisms can not be removed and cultured in a laboratory setting.[4] The genetic makeup of some microbes is then only accessible through eDNA analysis. Analytical techniques of eDNA were first applied to terrestrial sediments yielding DNA from both extinct and extant mammals, birds, insects and plants.[5] Samples extracted from these terrestrial sediments are commonly referenced as 'sedimentary ancient DNA' (sedaDNA or dirtDNA).[6]

See also

References

  1. PMID 18400683
    .
  2. ^ "What is eDNA?". Freshwater Habitats Trust.
  3. ^
    PMID 24821515
    .
  4. ^
    doi:10.1016/j.biocon.2014.11.019
    .
  5. S2CID 1222227
    .
  6. S2CID 43351435
    .
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