DNA collection and analysis for wildlife conservation
De Flamingh tested a relatively inexpensive alternative: using postcard-sized data-collection cards that have been treated to prevent the samples from degrading. Previous research has shown that once samples are smeared on the cards, they can be stored for months without refrigeration.
By running the sequence data obtained from the cards through genomic databases, the team found a treasure trove of information in the dung.
“I was surprised,” Roca said. “I thought we might get some elephant DNA from the cards, but I was thinking on the order of 2%. However, on average, more than 12% of the DNA was attributed to the elephant.”
each sample yielded a vast amount of data about the elephant, the microbial composition of its gut, its habitat and diet. The researchers even detected the DNA of butterflies and other arthropods that interact with the dung after it is deposited.
When it comes to the elephant genomes, the results are comparable to those obtained via blood samples, Roca said.
It sounds like the tech in the old Sci-fi movie Gattaca. A lot has happened in 25 years.