Navigation Links
Frogs evolution tracks rise of Himalayas and rearrangement of Southeast Asia
Date:8/5/2010

s do, evidently to prevent the slimy female from being whisked away during the sometimes hours-long amplexus required for the female to ovulate.

Using frogs collected by Che and others, including frogs collected 20 years ago in Tibet and the Himalayas by Theodore Papenfuss, a herpetologist in UC Berkeley's Museum of Vertebrate Zoology, the researchers analyzed four genes from the nucleus in 29 individuals from 24 species of spiny frog. The analysis showed the Paini is composed of two major groups and five distinct lineages, which was a surprise, Wake said.

"The study has revealed at least five unnamed frogs in Indochina and adjacent Yunnan Province in China," Papenfuss said.

According to the researchers' genetic reconstruction, the tribe Paini arose in what is now Indochina and spread into Western China about 27 million years ago, diverging into two groups: Nanorana, now consisting primarily of high-elevation species up to 4,700 meters, in Western China; and Quasipaa, consisting of mostly low-elevation species in Indochina and South China.

As the Tibetan plateau was pushed higher, it became separated from the Himalayas, isolating populations in these regions some 19 million years ago. Those restricted to the Himalayas are now considered the Paa subgenus. The Nanorana subgenus isolated in Tibet began to diversify again about 9 million years ago, consistent with the period during which the Tibetan plateau rose above 3,000 meters. These new Nanorana species became well adapted to the cold, arid, low-oxygen conditions of Tibet, and as a result, some organs degenerated, Papenfuss said. For example, some frogs today have no or reduced structures in the ear, including the external tympanum, which transmits sound to the inner ear, and the columella in the middle ear.

The researchers found that in Indochina and South China, on the other hand, the Quasipaa frogs were split by the uplift of the Truong Son Mountain Rang
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Stanford researchers: Global warming is killing frogs and salamanders in Yellowstone Park
2. Frogs reveal clues about the effects of alcohol during development
3. UCLA scientists discover ultrasonic communication among frogs
4. Disease threat may change how frogs mate
5. McDonalization of frogs
6. Pesticide atrazine can turn male frogs into females
7. Frogs, foam and fuel: University of Cincinnati researchers convert solar energy to sugars
8. Counting frogs: Why monitoring our amphibian populations is important
9. Prehistoric frogs face extinction
10. Primitive frogs do a belly flop
11. Research of cell movements in developing frogs reveals new twists in human genetic disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Frogs evolution tracks rise of Himalayas and rearrangement of Southeast Asia
(Date:7/29/2014)... in locomotion. Swimming microorganisms, such as bacteria and spermatozoa, ... the viscous forces exerted by the surrounding fluid. ... scientists have found that the direction of propulsion made ... by a viscoelastic fluid. These findings have been published ... the Alternative Energies and Atomic Energy Commission (CEA), in ...
(Date:7/29/2014)... wildfires that have been plaguing the Northern Territories in ... Great Lakes in the U.S. continue on. NASA,s ... Resolution Imaging Spectroradiometer, MODIS, instrument on July 26, 2014. ... outlined in red. Copious amount of smoke are drifting ... havoc for residents of Yellowknife. Fire has caused ...
(Date:7/29/2014)... the University of Kent has shown for the first ... a breakthrough that could have a major impact on ... of Biosciences uncovered the mechanism whereby the physical properties ... actin filaments are ,fine-tuned, to undertake different functions. ... completely stable, providing a framework for the cell, others ...
Breaking Biology News(10 mins):Optimum inertial self-propulsion design for snowman-like nanorobot 2
... GOCE satellite from the Plesetsk cosmodrome in northern Russia had ... due to an anomaly identified in one of the units ... stage (Breeze KM ). The correction of the problem ... perform this operation, it will be necessary to de-mate the ...
... physician-geneticist and leader of the Human Genome Project, has ... the Inamori International Center for Ethics and Excellence at ... and Kyoto Prizes for science, technology, philosophy and the ... ethical leaders. It is presented annually to an individual ...
... de los Alimentos (Institute of Nutrition and Food Technology) ... doing research into the positive effects of Mediterranean diet,s ... is a new research line about pancreatic cancer cells. ... points out that in the study ,Influence of the ...
Cached Biology News:Leader of Human Genome Project honored with the Inamori Ethics Prize 2New studies on the Mediterranean diet confirm its effectiveness for chronic disease prevention 2
(Date:7/29/2014)... & Rockville, MD (PRWEB) July 29, 2014 ... Inc. (ITI), a vaccine pioneer in the biotechnology ... services firm Newport Coast Securities, Inc. to explore ... is commercializing LAMP-vax technology, a breakthrough vaccine platform ... and immunotherapy market. The company exclusively licensed the ...
(Date:7/29/2014)... 29, 2014  Sigma-Aldrich Corporation (NASDAQ: SIAL ... increased its investment in Green Chemistry and donated more ... last year, the Company announced Monday in its new ... the World? The report comes in ... being a responsible corporate citizen, including recognition for the ...
(Date:7/29/2014)...  United Therapeutics Corporation (NASDAQ: ... for the second quarter ended June 30, 2014. ... our medicines are reaching increasing numbers of ... said Martine Rothblatt, Ph.D., United Therapeutics, Chairman ... this quarter of our extended-release tablet called ...
(Date:7/29/2014)... 29, 2014 Eppendorf Centrifuge 5427 ... selection. Eppendorf 5427 R is geared towards high-end applications ... it is targeted towards work requiring high sample throughput. ... as it compliments their extensive 16, 48, and 64 ... microcentrifuge tubes, PCR tubes, PCR strip tubes, and more. ...
Breaking Biology Technology:Immunomic Therapeutics Engages Newport Coast Securities, Inc. 2Immunomic Therapeutics Engages Newport Coast Securities, Inc. 3Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 2Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13International Pipette Distributor, Pipette.com Announces the Addition of the Eppendorf Centrifuge 5427 R to Their Product Portfolio 2
... energy company, BioPower Systems (BPS), today announced that the ... O,Brien MP, has awarded the company conditional funding support ... Program. The funding will be applied towards ... bioWAVE ocean wave energy system at a grid-connected site ...
... Medical Center researchers could still be close to giving heart ... The "LateTIME" trial was a study of adult ... to have the ability to improve heart function after an ... the attack. Results were released this week ...
... Palatin Technologies, Inc. (NYSE Amex: ... peptide therapeutics for the treatment of diseases with ... announced that Dr. Carl Spana, President and Chief ... Area Partnerships conference on Thursday, December 1, 2011.  ...
Cached Biology Technology:BioPower Systems Awarded $5 Million from Victorian Government 2BioPower Systems Awarded $5 Million from Victorian Government 3Post Heart Attack Recovery Not Aided By Stem Cell Injections, But Trial Demonstrates Promise 2Palatin Technologies to Present at Windhover's Therapeutic Area Partnerships Conference 2
... The Label IT siRNA Tracker Intracellular Localization ... directly label and deliver siRNA, of your ... for in vitro tracking experiments. Subcellular localization ... can be monitored following introduction of the ...
... The Label IT siRNA Tracker Intracellular ... provides a straight forward approach to ... your design, in an efficient yet ... experiments. Subcellular localization and functional inhibition ...
... and reproducible immunoprecipitation (IP) by using a 96 ... than regular IPs, which are problematic with regards ... the agarose bed. The binding of the antibody/antigen ... elution of the immune complex can occur with ...
... The Yeast Oligo Microarray Kit (V2), ... to simultaneously characterize expression of many ... gene activity during important biological processes. ... representing 6,256 known ORFs from the ...
Biology Products: