Navigation Links
A snapshot of pupfish evolution in action
Date:1/10/2013

Chris Martin has bred more than 3,000 hybrid fish in his time as a graduate student in evolution and ecology at UC Davis, a pursuit that has helped him create one of the most comprehensive snapshots of natural selection in the wild and demonstrated a key prediction in evolutionary biology.

"We can see a surprisingly complex snapshot of natural selection driving the evolution of new specialized species," said Martin, who with Professor Peter Wainwright published a paper on the topic in the Jan. 11, 2013, issue of the journal Science.

The "adaptive landscape" is very important for evolutionary biology, but rarely measured, Martin said. He's been fascinated with the concept since high school.

An adaptive landscape takes variable traits in an animal or plant, such as jaw size and shape, spreads them over a surface, and reveals peaks of success (what evolutionary scientists call fitness) where those traits become most effective, or adaptive.

It is a common and powerful idea that influences thinking about evolution. But while the concept is straightforward, it is much harder to map out such a landscape in the wild.

For example, about 50 species of pupfish are found across the Americas. The tiny fish, about an inch or so long, mostly eat algae on rocks and other detritus. Martin has been studying species found only in a few lakes on the island of San Salvador in the Bahamas, where some of the fish have evolved different-shaped jaws that allow them to feed on hard-shelled prey like snails or, in one case, to snatch scales off other fish.

In a paper published in 2011, Martin showed that these San Salvadoran fish are evolving at an explosively faster rate than other pupfish.

Martin brought some of the fish back to the lab at UC Davis and bred hybrids with fish with different types of jaws. He created about 3,000 hybrids in all, which were measured, photographed and tagged. Martin then took about 2,000
'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Leading evolutionary scientist to discuss how genome of bacteria has evolved
2. An evolutionary surprise
3. Ancient Egyptian cotton unveils secrets of domesticated crop evolution
4. Did climate change shape human evolution?
5. A University of Tennessee professors hypothesis may be game changer for evolutionary theory
6. Analysis of stickleback genome sequence catches evolution in action
7. Study shows unified process of evolution in bacteria and sexual eukaryotes
8. Rapid method of assembling new gene-editing tool could revolutionize genetic research
9. Whats in a surname? New study explores what the evolution of names reveals about China
10. Scientists trace evolutionary history of what mammals eat
11. Not by DNA alone: How the epigenetics revolution is fostering new medicines
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A snapshot of pupfish evolution in action
(Date:4/20/2015)... Huntington Memorial Hospital is the first facility ... miniaturized, wireless monitoring sensor to manage heart failure (HF). ... FDA-approved heart failure monitoring device that has been proven ... to manage heart failure. The CardioMEMS HF ... pulmonary artery (PA) during a non-surgical procedure to directly ...
(Date:4/14/2015)... NEW YORK , April 14, 2015 /PRNewswire/ ... Fast IDentity Online (FIDO ® ) Alliance tm ... standards-based specifications. FIDO members commit to share technology ... authentication methods that are interoperable, more secure and ... specifications enable biometric identity verification that protects sensitive ...
(Date:4/13/2015)... 2015  higi, a leading cloud-based consumer engagement platform ... engage with their communities around health and wellness, announced ... secure API.  ... affordable, and convenient vehicle to receive validated health information ... The API will allow higi,s trusted partners, on ...
Breaking Biology News(10 mins):Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... researchers have discovered a novel molecular mechanism that can ... progression of some cancers. In the March 23 online ... scientists from the University of Montreal explain how they ... of inflammatory cytokines that normally activate the immune system, ...
... diagnosis is critical in treating Lyme disease. However, ... initially misdiagnosed because currently available serological tests have ... of infection. Misdiagnosed patients may go untreated and ... face longer and more invasive treatments, as well ...
... National Renewable Energy Laboratory (NREL) recently convened the ... with a mission to enable securitization of solar ... marketplace. SAPC,s primary efforts center on the ... documents relevant to residential and commercial deployment, and ...
Cached Biology News:University of Montreal researchers discover how drug prevents aging and cancer progression 2Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 2Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 3Penn Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device 4NREL assembles industry working group to advance solar securitization 2
(Date:4/21/2015)... April 21, 2015  Scientists from the J. ... organization, published a paper today outlining new synthetic ... called diatoms. The researchers, led by first author ... Philip Weyman , Ph.D., conclude that these ... of diatom genetics and thus facilitate advances in ...
(Date:4/21/2015)... , April 21, 2015 Merrimack Pharmaceuticals, ... from a multi-arm Phase 1 study of MM-141, a ... presented in an oral session by Dr. Mansoor ... Cancer Research Annual Meeting in Philadelphia, PA. ... of MM-141 as a monotherapy and in combination with ...
(Date:4/21/2015)... -- Ampio Pharmaceuticals, Inc. (NYSE MKT: AMPE) today announced ... April 23, 4:30 p.m. ET. Participants are invited to ... Investor call information: U.S./ Canada ... (925) 418-7845 Participant Passcode: 32888538 Questions can ... tina.amirkiai@fleishman.com . Access will be provided ...
(Date:4/21/2015)... 21, 2015  Cryoport, Inc. (OTCBB: CYRX) ... logistics solutions for the life sciences industry, ... lines, clinical research organizations, vaccine manufacturers and ... Mark W. Sawicki , Chief Commercial Officer, ... Summit in San Francisco, CA ...
Breaking Biology Technology:Scientists at the J. Craig Venter Institute Publish Paper Outlining Efficient Synthetic Biology Methods to Genetically Engineer Microalgae 2Scientists at the J. Craig Venter Institute Publish Paper Outlining Efficient Synthetic Biology Methods to Genetically Engineer Microalgae 3First-in-Human Phase 1 Trial of MM-141 Demonstrates Activity in Biomarker Positive Patients 2First-in-Human Phase 1 Trial of MM-141 Demonstrates Activity in Biomarker Positive Patients 3First-in-Human Phase 1 Trial of MM-141 Demonstrates Activity in Biomarker Positive Patients 4First-in-Human Phase 1 Trial of MM-141 Demonstrates Activity in Biomarker Positive Patients 5Ampio Announces Investor Call on Thursday, April 23, 4:30 p.m. ET 2Cryoport to Present at the 3rd Annual BioLogistics Summit in San Francisco, CA 2Cryoport to Present at the 3rd Annual BioLogistics Summit in San Francisco, CA 3
... Oct. 29 Vical Incorporated,(Nasdaq: VICL ) today ... three months and nine months ended September 30, 2008,before ... conduct a,conference call and webcast to discuss the financial ... on Wednesday, November 5. The call is,open on a ...
... Clearance from ... Development Progress Triggered $1M Milestone Payment from Cook Medical - ... 4:30 p.m. Eastern Time -, REDWOOD CITY, Calif., October 28 ... its fiscal 2009 first quarter ended September 30, 2008., "We had ...
... $490 Million, Up 14 Percent over Third Quarter 2007 ... Sales and Earnings Guidance, Introduces 2009 Adjusted Net ... Oct. 28 Cephalon, Inc. (Nasdaq:,CEPH) today reported third quarter ... for the third quarter of 2007, and at the high,end ...
Cached Biology Technology:Vical Announces News Release and Conference Call Schedule For Third Quarter 2008 Financial Results 2Vical Announces News Release and Conference Call Schedule For Third Quarter 2008 Financial Results 3Cardica Announces Fiscal 2009 First Quarter Financial Results 2Cardica Announces Fiscal 2009 First Quarter Financial Results 3Cardica Announces Fiscal 2009 First Quarter Financial Results 4Cardica Announces Fiscal 2009 First Quarter Financial Results 5Cardica Announces Fiscal 2009 First Quarter Financial Results 6Cephalon Reports Another Strong Quarter 2Cephalon Reports Another Strong Quarter 3Cephalon Reports Another Strong Quarter 4Cephalon Reports Another Strong Quarter 5Cephalon Reports Another Strong Quarter 6Cephalon Reports Another Strong Quarter 7Cephalon Reports Another Strong Quarter 8Cephalon Reports Another Strong Quarter 9Cephalon Reports Another Strong Quarter 10Cephalon Reports Another Strong Quarter 11Cephalon Reports Another Strong Quarter 12Cephalon Reports Another Strong Quarter 13Cephalon Reports Another Strong Quarter 14Cephalon Reports Another Strong Quarter 15Cephalon Reports Another Strong Quarter 16Cephalon Reports Another Strong Quarter 17Cephalon Reports Another Strong Quarter 18Cephalon Reports Another Strong Quarter 19
5,6 Carboxyfluorescein is conjugated to BSA (bovine serum albumin) protein through amide bonds....
2,4,6-Trinitrophenyl hapten is conjugated to Bovine Serum Albumin protein through lysine by amide bonds....
... Edwards (1996) • Provides key ... immunoassays, including RIA, ELISA and ... the photoluminescent and chemiluminescent labels ... also given on assay design ...
EoProbe Eosinophil Staining Kit, 1 Kit...
Biology Products: