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:8/5/2020)... ... August 05, 2020 , ... Regenative Labs has received approval from the Centers ... making them the first Wharton’s jelly allografts to be assigned a Q code and ... are the first Wharton’s jelly allograft product to be recognized as a 361 HCT/P ...
(Date:7/18/2020)... SAN ANTONIO (PRWEB) , ... July 16, 2020 ... ... PLOS ONE that demonstrates the effectiveness of the Invictus Medical Neoasis™ active noise ... (NICU) environment. The study reported that the Neoasis™ device attenuated the alarm sounds ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. ... of Neihulizumab, a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), ... Dr. Paul J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... Diversified Technologies, Inc. has ... be configured to drive Klystrons, TWTs, IOTs, and magnetrons. , DTI Radar ... switches in a push-pull configuration; yielding fast fall time for a capacitive load. ...
(Date:7/31/2020)... ... July 30, 2020 , ... ... the life sciences industry, today announced the release of its signature product ... Medical Science Liaisons (MSLs) and other field medical professionals. , Beacon ...
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra , a leading ... food industries, is pleased to announce that Charles Galea has joined its clinical ... Charles is an accomplished and results-driven sales executive with over 10 years of ...
(Date:7/7/2020)... ... July 06, 2020 , ... R3 International is now ... up to 200 million stem cells. Depending on the patient's condition, treatment may be ... US will die having some form of Alzheimers dementia, and the incidence continues to ...
Breaking Biology Technology:
Cached News: