HOME >> BIOLOGY >> NEWS
Genetic analysis finds greater threat in frog-killing fungus

Berkeley -- A deadly fungus that has decimated populations of mountain yellow-legged frogs in the Sierra Nevada can likely be spread by sexual reproduction, seriously complicating efforts to save the frogs from extinction, according to a new genetic analysis led by researchers at the University of California, Berkeley.

The dramatic decline of the mountain yellow-legged frog over the past several decades has been attributed to the introduction of non-native predatory fish in some areas and to chytridiomycosis, a quickly spreading disease caused by this waterborne fungus, Batrachochytrium dendrobatidis.

The study, to appear in next week's edition of the journal Proceedings of the National Academy of Sciences, suggests that the frog-killing fungus may end up playing the bigger role in the frog's demise because of the pathogen's ability to spread over long distances and possibly persist in the environment as a consequence of sexual reproduction, according to the researchers.

"This group of fungi, when it reproduces sexually, can create spores that can last for a decade," said John Taylor, UC Berkeley professor of plant and microbial biology and principal investigator of the study. "That could make this pathogen a harder problem to defeat. As a resistant spore, the fungus could be transported by animals, including humans or birds, or lay dormant in an infected area until a new host comes along."

Biologists are still determining exactly how this fungus, first identified in 1998, kills the amphibians it infects, but most believe that the pathogen disrupts the frogs' ability to absorb water through its skin.

In the western United States, the fungus has been spreading quickly, moving west to east across the Sierra Nevada at a pace of about a mile per year, according to the researchers. Tens of thousands of mountain yellow-legged frogs in hundreds of sites have virtually disappeared in the wake of the pathogen's emergence i
'"/>

Contact: Sarah Yang
scyang@berkeley.edu
510-643-7741
University of California - Berkeley
6-Aug-2007


Page: 1 2 3 4 5

Related biology news :

1. Genetic variation helps to understand predisposition to schizophrenia
2. Genetic factors strongly shape how peers are chosen
3. Genetic diversity in honeybee colonies boosts productivity
4. 2007-2008 Genzyme/ACMGF Clinical Genetics Fellowship In Biochemical Genetics award winner announced
5. Maynard Olson receives $500,000 Gruber Genetics Prize
6. Genetic defect links respiratory disease and congenital heart disease
7. Cell Press announces new partnership with the American Society of Human Genetics
8. Genetic fellow traveler discovered in Alzheimers
9. Genetic roots of bipolar disorder revealed by first genome-wide study of illness
10. Health disparities -- Genetics, society and race play an important role in access to healthcare
11. Genetic studies endow mice with new color vision

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/1/2020)... ... ... Liver cancer, called hepatocellular carcinoma (HCC), occurs each year in more than ... the 5th most common cancer and the 2nd leading cause of cancer deaths. Mongolia ... HCC, while China has half of all patients suffering from liver cancer. The incidence ...
(Date:1/28/2020)... OF PRUSSIA, Pa. and CAMBRIDGE, Mass. (PRWEB) , ... ... ... dedicated to solving complex problems for life sciences companies and government agencies, announced ... largest life sciences hubs in the country. Tunnell’s Cambridge office will be in ...
(Date:1/24/2020)... ... January 24, 2020 , ... The ... Colorado’s capital resources to support early-stage bioscience companies in the state. ... struggled to find the funding they need to innovate and grow. This ...
Breaking Biology News(10 mins):
(Date:1/24/2020)... N.J. (PRWEB) , ... January 24, 2020 , ... The ... The Plastic Surgery Center in New Jersey epitomize the notion that plastic surgery is ... is typically characterized in popular media. , Over the last 20 years NJ Top ...
(Date:1/24/2020)... ... January 24, 2020 , ... Sierra Instruments, global leader in ... controllers ideal for BioPharm OEMS. Sierra also announces RedyCompact™ flow ... instruments employ high-precision MEMS (Micro-Electro Mechanical Systems) technology utilizing an advanced, ultra-stable no-drift ...
(Date:1/22/2020)... MATEO, Calif. (PRWEB) , ... January 20, 2020 ... ... System, today announced a partnership with WAVE Electronics, the largest independent electronics distributor ... installer partners to purchase Brilliant Smart Home Systems with leading smart home products ...
(Date:1/22/2020)... ... January 21, 2020 , ... COBO ... of Genome editing. The partners have agreed to co-develop and market a portfolio ... agricultural, and pre-clinical programs. Over the longer-term, the parties aim to develop a ...
Breaking Biology Technology:
Cached News: