What if Noah got it wrong? What if he paired a male and a female animal thinking they were the same species, and then discovered they were not the same and could not produce offspring? As researchers from the Smithsonian's Panama Amphibian Rescue and Conservation Project race to save frogs from a devastating disease by breeding them in captivity, a genetic test averts mating mix-ups.
At the El Valle Amphibian Conservation Center, project scientists breed 11 different species of highland frogs threatened by the chytrid fungus Batrachochytrium dendrobatidis, which has already decimated amphibian populations worldwide. They hope that someday they will be able to re-release frogs into Panama's highland streams.
Different frog species may look very similar. "If we accidentally choose frogs to breed that are not the same species, we may be unsuccessful or unknowingly create hybrid animals that are maladapted to their parents' native environment," said Andrew J. Crawford, research associate at the Smithsonian Tropical Research Institute in Panama and professor at Colombia's Universidad de los Andes. Crawford and his colleagues make use of a genetic technique called DNA barcoding to tell amphibian species apart. By comparing gene sequences in a frog's skin cells sampled with a cotton swab, they discover how closely the frogs are related.
New knowledge about frog genetics contributes to saving amphibians from extinction, the mission of the Panama Amphibian Rescue and Conservation Project. Participating institutions include Africam Safari, Panama's Autoridad Nacional del Ambiente, Cheyenne Mountain Zoo, Defenders of Wildlife, El Valle Amphibian Conservation Center, Houston Zoo, Smithsonian's National Zoological Park, the Smithsonian Tropical Research Institute and Zoo New England.
Crawford, A.J., Cruz, C., Griffith, E., Ross, H., Ibanez, R., Lips, K., Driskell, A.C., Bermingham, E. and Crump, P. 2013. DNA barcoding applied to ex situ tropical amphibian conservation programme reveals cryptic diversity in captive populations. Molecular Ecology Resources. doi: 10.1111/1755-0998.12054
Smithsonian Tropical Research Institute: http://www.stri.org
This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.
Wild bumblebees are infected with many of the diseases found in honeybees looked after by bee keepers, according to a national survey.
Forests may only achieve half of their predicted increase in carbon sink capacity because insects munch more when CO2 levels rise
The two regions have recently suffered their worst droughts on record. And Syria's may have helped to trigger its civil war
Opponents say measures designed to hamper regulatory efforts
Manmade warming in past decade has likely been offset by cooling from natural cycles in the Pacific and Atlantic - but effect will reverse in coming decades
A devastating disease that has wiped out amphibians around the world has been discovered in Madagascar, scientists report.
The Oklahoma Republican, who chairs the Senate Environment and Public Works committee, has long argued climate change is a "hoax"
Warmer temperatures in Alaska are giving farmers flexibility to plant a wider range of crops over a longer growing season. One farmer says the secret to his bounty is soil enriched by flooding rivers.
The canal would allow passage for the largest ships on the water, but cut through wetlands, forests and the region's largest freshwater lake — and environmentalists worry about the consequences.
The results of the UK government's first auction for renewable energy subsidies are a boost for offshore wind, with solar the biggest loser.