Navigation Links
Genes and calls reveal 5-fold greater diversity of Amazon frog species

Amazonian biodiversity has been studied for hundreds of years. Early explorers of Amazonian plants and animals included renowned naturalists of the stature of Alexander von Humboldt and A. R. Wallace. Despite this long history of exploration, new studies are resulting in the discovery of a large number of new species. The key of these discoveries lies in the use of advanced new tools for species detection.

The study, published in the open access journal ZooKeys, found up to 11 species among populations of what were previously considered two widespread treefrog species. Based on analyses of the genetic variation of dozens of Amazonian populations across six countries, the team lead by Marcel Caminer from the Museum of Zoology at Catholic University of Ecuador, found unequivocal evidence of the existence of a large amount of the so called "cryptic diversity". The genetic results were corroborated with detailed analyses of male calls and body shape and color. The study formally describes four of the new species identified.

'These findings could not be possible without large-scale genetic sampling' said Dr Santiago Ron, one of the authors of the study. 'The genetic data allows the discovery of species that have been hidden in museum shelves for decades. Genetic screening is opening a new age of scientific discovery in biodiversity studies in the Amazon region'

"Cryptic species" are two or more species mistakenly classified as a single one. Traditionally, taxonomists recognized species purely on morphological grounds and therefore failed to discriminate between species with similar appearance. The increasing use of DNA sequences for species recognition is demonstrating that current estimates vastly underestimate the true Amazonian species richness.

The discovery of cryptic diversity also has important implications for the conservation prospects of the species. 'What were considered two species with wide geographic distribution turned out to be eleven species with much smaller geographic ranges. This change implies that each species has a higher extinction probability' said Dr. Ron. 'If our results are typical of Amazonian amphibians, a large scale reassessment of their conservation status and geographic distribution will be required'.


Contact: Dr. Santiago Ron
Pensoft Publishers

Related biology news :

1. Mitochondrial genes matter!
2. Is multitasking mastery in the genes?
3. Hypoxic preconditioning stimulates angiogenesis in ischemic penumbra after ACI
4. Methylation signaling controls angiogenesis and cancer growth
5. Study to identify functions of hypothetical genes in 2 infectious disease pathogens
6. Protein coding junk genes may be linked to cancer
7. Researchers identify main genes responsible for asthma attacks in children
8. Gut microbes in healthy kids carry antibiotic resistance genes
9. Events coordination during embryogenesis
10. NIH-supported study identifies 11 new Alzheimers disease risk genes
11. International collaboration finds 11 new Alzheimers genes to target for drug discovery
Post Your Comments:
Related Image:
Genes and calls reveal 5-fold greater diversity of Amazon frog species
(Date:5/3/2016)...  Neurotechnology, a provider of high-precision biometric identification ... Identification System (ABIS) , a complete system for ... can process multiple complex biometric transactions with high ... face or iris biometrics. It leverages the core ... MegaMatcher Accelerator , which have been used in ...
(Date:4/26/2016)... LONDON , April 26, 2016 ... EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... a partnership to integrate the Onegini mobile security ... (Logo: ) The ... enhanced security to access and transact across channels. ...
(Date:4/15/2016)... 2016  A new partnership announced today will ... decisions in a fraction of the time it ... high-value life insurance policies to consumers without requiring ... Force Diagnostics, rapid testing (A1C, Cotinine and HIV) ... pressure, weight, pulse, BMI, and activity data) available ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Parallel 6 , the leading software as ... Clinical Reach Virtual Patient Encounter CONSULT module which enables both audio and video ... trial team. , Using the CONSULT module, patients and physicians can schedule a face ...
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... the funding of a Sponsored Research Agreement with ... tumor cells (CTCs) from cancer patients.  The funding ... CTC levels correlate with clinical outcomes in cancer ... data will then be employed to support the ...
(Date:6/24/2016)... , June 24, 2016 Epic ... sensitively detects cancers susceptible to PARP inhibitors by ... tumor cells (CTCs). The new test has already ... therapeutics in multiple cancer types. Over ... DNA damage response pathways, including PARP, ATM, ATR, ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... its second eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced ... this eBook by providing practical tips, tools, and strategies for clinical researchers. , ...
Breaking Biology Technology: