Navigation Links
For diseases, when it comes to sharing a home, only close relatives will do

Being more generous to close relatives is a common theme in both our daily interactions and our understanding of how organisms resolve conflicts in nature. In a paper from July issue of The American Naturalist, biologists Britt Koskella (Indiana University), Tatiana Giraud (Université Paris-Sud), and Michael Hood (University of Virginia) asked whether similar rules apply to disease-causing microbes. They tried introducing a sexually-transmitted disease of plants, called "anther smut," into hosts that were already infected, and found that strains are more likely to share a host if they are more closely related.

In this way "pathogens seem to interact as we would," says Koskella, "sharing resources with close relatives and being more competitive towards non-relatives."

According to current evolutionary theory, the competition among pathogen strains determines why some diseases cause very severe symptoms, "so it is crucial to understand when and how this competition occurs within the hosts," adds Koskella.

To win host resources away from a non-relative, theory assumes the pathogens will increase exploitation of the host and thus cause more severe symptoms. However, if pathogens share the host most often with close relatives, this evolutionary conflict is decreased, possibly resulting in less harm by overexploitation. Such new insights into how pathogens interact within the host are needed to better understand and confront the harmful effects of diseases.


Source:University of Chicago Press Journals

Page: 1

Related biology news :

1. Growth in the sea comes down to a struggle for iron
2. Improved Outcomes Releases GeneLinker(TM) Gold and Platinum Version 4.6
3. BioMed Central welcomes the new National Institutes of Health public access policy
4. To sea or not to sea: When it comes to salmon sex, size sometimes doesnt matter
5. When it comes to cell entry, being average has its advantages
6. What comes first…the chicken, the egg, or the bad attitude?
7. Predicting successful outcomes in living-donor liver transplants
8. Signature of chromosome instability predicts cancer outcomes
9. Gene expression becomes heterogeneous with age in humans and rats
10. Giant deep-sea tubeworms meal ticket comes in as a skin infection
11. When it comes to gene transcription, random pauses aren’t quite so random, study finds
Post Your Comments:

(Date:10/29/2015)... 29, 2015   MedNet Solutions , an innovative ... of clinical research, is pleased to announce that it ... (MHTA) as one of only three finalists for a ... Small and Growing" category. The Tekne Awards honor ... superior technology innovation and leadership. iMedNet™ ...
(Date:10/29/2015)... Va. , Oct. 29, 2015 Daon, ... today that it has released a new version of ... customers in North America have ... IdentityX v4.0 also includes a FIDO UAF certified ... are already preparing to activate FIDO features. These customers ...
(Date:10/29/2015)... 2015  Connected health pioneer, Joseph C. Kvedar ... technology-enabled health and wellness, and the business opportunities that ... The Internet of Healthy Things . Long before ... existed, Dr. Kvedar, vice president, Connected Health, Partners HealthCare, ... moving care from the hospital or doctor,s office into ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... ... Inc., on being named to Deloitte's 2015 Technology Fast 500 list of the ... manufactures AcceleDent®, a FDA-cleared, Class II medical device that speeds up orthodontic tooth ...
(Date:11/24/2015)... , Nov. 24, 2015 Capricor ... company focused on the discovery, development and commercialization of ... Ph.D., Chief Executive Officer, is scheduled to present at ... 2015 at 10:50 a.m. EST, at The Lotte New ... . . --> ...
(Date:11/24/2015)... 2015  PDL BioPharma, Inc. (PDL) (NASDAQ: PDLI ) ... president and chief executive officer, will present at the 27 ... New York City . The presentation will ... 2015 at 9:30 a.m. EST. and ... at least 15 minutes prior to the presentation to allow ...
(Date:11/24/2015)... ... 24, 2015 , ... Whitehouse Laboratories is pleased to announce that it has ... be strictly dedicated to basic USP 61, USP 62 and USP 51 testing specific ... complete chemistry and micro testing performed by one supplier. Management has formally ...
Breaking Biology Technology: