Navigation Links
Study finds role for parasites in evolution of sex
Date:7/6/2009

versity of Washington and Curtis Lively of Indian University, Bloomington began observing several populations of these snails for ten years starting in 1994. They monitored the number of sexuals, the number asexuals, and the rates of parasite infection for both.

The team found that clones that were plentiful at the beginning of the study became more susceptible to parasites over time. As parasite infections increased, the once plentiful clones dwindled dramatically in number. Some clonal types disappeared entirely. Meanwhile, sexual snail populations remained much more stable over time. This, the authors say, is exactly the pattern predicted by the parasite hypothesis.

"The rise and fall of these female-only lineages was surprisingly fast and consistent with the prediction of the parasite hypothesis for sex," Jokela said. "These results suggest that sexual reproduction provides an evolutionary advantage in parasite rich environments."

So we may well have to thank parasitesin spite of their nasty reputationfor the joy of sex.


'/>"/>

Contact: Kevin Stacey
kstacey@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert

Page: 1 2

Related biology news :

1. Canadian researchers set to study impact of nanomaterials on aquatic ecosystems
2. MS study offers theory for why repair of brains wiring fails
3. Oscar Pistorius: Previously confidential study results released on amputee sprinter
4. NSF provides $3.4 million to study climatically important Agulhas Current
5. Plant protein doorkeepers block invading microbes, study finds
6. ESHRE launches international study of polar body screening
7. Environmental cues control reproductive timing and longevity, University of Minnesota study shows
8. Study finds DNA barcoding requires caution without closer examination
9. Study characterizes eczema patients most at risk for dangerous viral infections
10. UT San Antonio researcher wins $917,000 from NIH to study memory
11. Gene predicts how brain responds to fatigue, human study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... environment on Earth, but when the climate changes and ... limit. The amount of time needed to adjust to ... cope in the future, reveals a new study from ... scientific journal Proceedings of the Royal Society B ... levels of greenhouse gases in the atmosphere. The greenhouse ...
(Date:9/30/2014)... goes wrong with your muscles because of age, disease or ... is. That,s where a new research report published in the ... comes in. In the report, a team of scientists ... help scientists "see" which genes are active in an organ ... activity and that men have approximately 400 more active genes ...
(Date:9/30/2014)... 30, 2014) People who suffer from asthma may ... control their asthma besides properly taking medications and avoiding ... in the Annals of Allergy, Asthma and Immunology ... Allergy, Asthma and Immunology (ACAAI), asthma sufferers can learn ... The woman described in the Annals article improved her ...
Breaking Biology News(10 mins):Shape up quickly -- applies to fish, too! 2Scientists identify which genes are active in muscles of men and women 2Asthma symptoms kicking up? Check your exposure to air pollution 2
... HARBOR, N.Y. Many proteins do not function ... associate to form larger structures called protein complexes. ... ( www.cshprotocols.org/TOCs/toc5_09.dtl ) features a set of methods ... An additional featured article details the generation of viral ...
... Society (ACS) Weekly PressPac from the Office of ... peer-reviewed journals and Chemical & Engineering News ... American Chemical Society as the source for this ... ARTICLE #1 FOR IMMEDIATE RELEASE Gene ...
... the introduction of genetic material into a patient,s cells resulting ... years, it has been shown that gene therapy is a ... for which there is no attractive alternative therapy. Gene ... other diseases that affect heart, brain and even for cancer. ...
Cached Biology News:Protein analysis methods, viral vectors featured in Cold Spring Harbor Protocols 2American Chemical Society's weekly PressPac -- April 29, 2009 2American Chemical Society's weekly PressPac -- April 29, 2009 3American Chemical Society's weekly PressPac -- April 29, 2009 4American Chemical Society's weekly PressPac -- April 29, 2009 5American Chemical Society's weekly PressPac -- April 29, 2009 6Moving gene therapy forward with mobile DNA 2
(Date:9/30/2014)... Proove Biosciences , the commercial and research ... new genetic test built upon research from their published ... will provide physicians with an objective way to understand ... stratified between individuals. With this new test, physicians will ... genetic predisposition that will affect their pain tolerance. , ...
(Date:9/30/2014)...  RegeneRx Biopharmaceuticals, Inc. (OTC: RGRX) ("the Company" ... a Canadian Patent for Inhibition or Reversal of ... claims using thymosin beta 4, various fragments and ... purposes.  The patent will expire in 2021. ... ) RegeneRx is focused on ...
(Date:9/30/2014)... 2014 Fast, semi-automatic creation ... in documents ChemAxon , a ... services for life science research, launches ChemCurator, an ... structures from documents. Markush structures are ... generating and understanding Markush structures is a difficult ...
(Date:9/30/2014)... OriginOil Inc. (OTC/QB: OOIL), developer of Electro ... up large quantities of water, announced today that in ... the launch of the company's CLEAN-FRAC™ industrial grade demonstrator ... STW Resources . , Immediately upon startup, the ... and achieved a 99.8% reduction in Turbidity on flowback ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2ChemAxon Introduces ChemCurator for Chemical Information Extraction and Markush Structure Creation 2OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2
... Area Technical College is launching a major effort to ... colleges and high schools. The initiative will feature new ... better prepare qualified technicians to work in the fast ... Foundation (NSF) grant - the second such grant MATC ...
... - Alfalight, Inc. , a Madison-based manufacturer ... markets, has been awarded $1.4 million in funding for ... program, sponsored by the Defense Advanced Research Projects ... is to increase a laser's power conversion efficiency -- ...
... Days of summer. Business slows. Indeed, in Europe, where I ... of suspended animation that will last until the first of ... attention. Work's grasp weakens. , ,Or does it? , ,After ... Monday morning mountain in my inbox and a to-do list ...
Cached Biology Technology:Alfalight garners $1.4 million defense funding for diode program 2Leaving it all behind 2
SHEEP ANTI FLECAINIDE...
MOUSE ANTI HUMAN B-CELLS (FMC7):FITC Immunogen: HRIK cells - Human B-Lymphoblastoid line...
... are ideal for use in refrigerators, freezers, or liquid ... vibrant colors allow for color coding to project, user, ... drainage or promote cool air circulation. Supplied with 10 ... tubes. Box dimensions: 13 x 13 x ...
RABBIT ANTI BACTERIAL HISTIDASE...
Biology Products: