Navigation Links
Genetic rarity rules in wild guppy population, study finds
Date:11/1/2013

TALLAHASSEE, Fla. When it comes to choosing a mate, female guppies don't care about who is fairest. All that matters is who is rarest.

Florida State University Professor Kimberly A. Hughes in the Department of Biological Science has a new study just published in the journal Nature that is the first to demonstrate a female preference for rare males using an experiment in a wild population, rather than a laboratory setting.

This study of genetic differences in male guppies is relevant to understanding variation in humans as well as in other organisms, Hughes said.

Hughes and her longtime collaborators studied guppies in Trinidad and found that male guppies with rare color patterns mated more and lived longer than the common males. The males' color variations are genetic and not due to diet or temperature. And the males' actual appearance didn't matter to the females, who are tan in color and do the choosing of mates.

"No matter which color pattern we made rare in any group, they mated more and had more offspring," Hughes said.

So, a male guppy common in one grouping, i.e., placed in a stream with many fish that look like him, is a dud to the females also in the stream. But, take that common male and place him in a different stream with only one or two others similar to him, and he's suddenly rare and a desirable mate.

In an earlier study, Hughes showed that male guppies with rare color patterns had a survival advantage compared to those with common patterns in natural populations. During a three-week study, also in Trinidad, 70 percent of common males survived, while 85 percent of rare males survived.

This new study, "Mating advantage for rare males in wild guppy populations," reports the results of paternity analyses of the offspring produced by the females in that earlier field experiment.

Hughes approached this new, rare-male-as-mating-champ theory with the goal of ruling i
'/>"/>

Contact: Nicole Brooks
nbrooks@fsu.edu
850-645-1294
Florida State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. GenSeq: Updated nomenclature for genetic sequences to solve taxonomic determination issues
2. BUSM researchers study epigenetic mechanisms of tumor metastasis for improved cancer therapy
3. HIV -- Geneticists map human resistance to AIDS
4. Measuring segments of genetic material may help predict and monitor recurrence after thyroid cancer
5. Genetic variants associated with bronchodilator responsiveness
6. EUREKA grant to fund development of new optogenetic technique for mapping neural networks at UMMS
7. New software traces origins of genetic disorders 20 times more accurately
8. 2 genetic wrongs make a biochemical right
9. Babcock Genetics Launches Breed Select Program
10. New genetic discovery could reduce the guesswork in drug dosing
11. What makes us left or right handed? New study rules out strong genetic factors
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... researchers have identified a gene that could help scientists ... protein in the cell membrane of plants that senses ... conservation machinery accordingly. , "It,s similar to a ... at Duke. , The findings, which appear Aug. ... it easier to feed the world,s growing population in ...
(Date:8/27/2014)... requires nerve cells to rearrange existing patterns of activity ... patterns, a study of monkeys has found. The scientists ... electrical activity of brain cell networks. The study was ... "We looked into the brain and may have seen ... said Aaron Batista, Ph.D., an assistant professor at the ...
(Date:8/27/2014)... invasive grass species frequently found in forests has created ... on American toads, a new University of Georgia study ... to the U.S. in the early 1900s, is one ... to more than a dozen states in the past ... and in forests, it can survive in widely diverse ...
Breaking Biology News(10 mins):Water 'thermostat' could help engineer drought-resistant crops 2Scientists plug into a learning brain 2Scientists plug into a learning brain 3More wolf spiders feasting on American toads due to invasive grass, UGA study shows 2More wolf spiders feasting on American toads due to invasive grass, UGA study shows 3
... One fifth of the standard dose of a commonly ... the full dose. This new finding should allow scarce ... in Africa. In a study initiated by the ... research arm of Doctors Without Borders/Mdecins Sans Frontires), and ...
... Institute,s Linheng Li Lab has identified the precise location of ... today in the Advance Online Publication of Nature . ... Institute,s support facilities to develop a new technology ex ... the dynamic behavior of stem cells. This technology enabled the ...
... University,s School of Biomedical Engineering and Science,s Center for Injury ... 2008. The Office of the Deputy Chief of ... the award for research that could ultimately help save eyesight ... The center was selected from 57 applicants from around ...
Cached Biology News:Stowers Institute's Linheng Li Lab expands understanding of bone marrow stem cell niche 2New dummy design and development wins US Department of Defense award 2
(Date:8/27/2014)... 27, 2014 Budding Biomedical Scientists ... University School participated in the Scientific Enrichment ... University’s School of Medicine . , ... unparalleled professional experience in the sciences and brings ... faculty and students for both academic and career ...
(Date:8/26/2014)... , Aug. 26, 2014  NeuroSigma, Inc., a ... to develop bioelectronic technologies, today announced that it has ... U.S. Securities and Exchange Commission relating to a proposed ... of shares to be offered and the price range ... Jefferies LLC will act as the book-running ...
(Date:8/26/2014)... Aug. 26, 2014 An analysis by Replikins, ... all Mers CoV virus strains has revealed ... to 2012.  This conservation and sharing of specific Replikin ... CoV Blocker-Vaccine™ candidate, as it did for the H5N1 ... of which have been found to be effective (1,2). ...
(Date:8/26/2014)... engineers from Singapore has successfully piloted the world,s ... communications. , With the weight of payloads being ... lightweight, low power-consuming, wireless communication system to do ... been a challenge for system designers. , The ... Nanyang Technological University in Singapore launched VELOX-I, which ...
Breaking Biology Technology:Students at Cleveland's University School Conduct Biomedical Research at Case Western Reserve University’s School of Medicine 2ZigBee in the Sky 2
... /PRNewswire/ - Cytochroma today announced that it,has appointed ... Affairs and Quality Assurance. Dr. Engel brings to ... and quality assurance,and will be responsible for directing ... that the Company has appropriate quality,systems in place. ...
... VLP vaccines gains momentum with launch of a Phase ... IIa study of Seasonal Influenza Vaccine, ... ) announced today vaccination of healthy volunteers in a Phase,II ... The Phase IIa randomized, placebo controlled clinical trial will,evaluate the ...
... Sept. 16 Accuray,Incorporated (Nasdaq: ARAY ), a ... its president and chief executive officer, Euan S.,Thomson, Ph.D., ... Sciences,Conference in New York City, on Thursday, September 25, ... live webcast of the presentation will be available online ...
Cached Biology Technology:Cytochroma appoints Steven I. Engel as Vice President of Regulatory Affairs and Quality Assurance 2Novavax Commences Clinical Testing of its Seasonal Influenza VLP Vaccine Candidate 2Novavax Commences Clinical Testing of its Seasonal Influenza VLP Vaccine Candidate 3Novavax Commences Clinical Testing of its Seasonal Influenza VLP Vaccine Candidate 4Novavax Commences Clinical Testing of its Seasonal Influenza VLP Vaccine Candidate 5Accuray Incorporated's CEO to Speak at UBS Global Life Sciences Conference 2
...
... Digital Sight DS-U2 camera controller is the successor ... designed to interface any of the cameras in ... computer through a USB2.0 interface. The DS-U2 transmits ... cumbersome installation by equipping both hub and mass ...
This unique buffer provides a gentle method for removal of primary and secondary antibodies to allow several reprobings on the same membrane. Gentle buffer will not alter the antigen for subsequent i...
...
Biology Products: