An environmental DNA sampling method for aye-ayes from their feeding traces

Megan L. Aylward, Alexis P. Sullivan, George H. Perry, Steig E. Johnson, Edward E. Louis

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Noninvasive sampling is an important development in population genetic monitoring of wild animals. Particularly, the collection of environmental DNA (eDNA) which can be collected without needing to encounter the target animal facilitates the genetic analysis of endangered species. One method that has been applied to these sample types is target capture and enrichment which overcomes the issue of high proportions of exogenous (nonhost) DNA from these lower quality samples. We tested whether target capture of mitochondrial DNA from sampled feeding traces of the aye-aye, an endangered lemur species would yield mitochondrial DNA sequences for population genetic monitoring. We sampled gnawed wood where aye-ayes excavate wood-boring insect larvae from trees. We designed RNA probes complementary to the aye-aye's mitochondrial genome and used these to isolate aye-aye DNA from other nontarget DNA in these samples. We successfully retrieved six near-complete mitochondrial genomes from two sites within the aye-aye's geographic range that had not been sampled previously. Our method demonstrates the application of next-generation molecular techniques to species of conservation concern. This method can likely be applied to alternative foraged remains to sample endangered species other than aye-ayes.

Original languageEnglish (US)
Pages (from-to)9229-9240
Number of pages12
JournalEcology and Evolution
Volume8
Issue number18
DOIs
StatePublished - Sep 2018

Fingerprint

endangered species
DNA
sampling
mitochondrial DNA
population genetics
genome
RNA probes
genetic analysis
monitoring
boring
methodology
animal genetics
Lemur
boring insects
RNA
wild animals
application methods
probe
genetic techniques and protocols
insect

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Aylward, Megan L. ; Sullivan, Alexis P. ; Perry, George H. ; Johnson, Steig E. ; Louis, Edward E. / An environmental DNA sampling method for aye-ayes from their feeding traces. In: Ecology and Evolution. 2018 ; Vol. 8, No. 18. pp. 9229-9240.
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Aylward, ML, Sullivan, AP, Perry, GH, Johnson, SE & Louis, EE 2018, 'An environmental DNA sampling method for aye-ayes from their feeding traces', Ecology and Evolution, vol. 8, no. 18, pp. 9229-9240. https://doi.org/10.1002/ece3.4341

An environmental DNA sampling method for aye-ayes from their feeding traces. / Aylward, Megan L.; Sullivan, Alexis P.; Perry, George H.; Johnson, Steig E.; Louis, Edward E.

In: Ecology and Evolution, Vol. 8, No. 18, 09.2018, p. 9229-9240.

Research output: Contribution to journalArticle

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