NDLI: Evolution of social conflict in the bacterium Myxococcus xanthus: centimeter vs global scale populations

Content Provider	PubMed Central
Author	Vos, Michiel Velicer, Gregory J.
Copyright Year	2009
Abstract	Social interactions among microbes that engage in cooperative behaviours are well studied in laboratory contexts [1, 2], but little is known about the scales at which initially cooperative microbes diversify into socially conflicting genotypes in nature. The predatory soil bacterium Myxococcus xanthus responds to starvation by cooperatively forming multi-cellular fruiting bodies in which a portion of the population differentiates into stress-resistant spores [3, 4]. Natural M. xanthus populations are spatially structured [5] and genetically divergent isolates from distant origins exhibit striking developmental antagonisms that decrease spore production in chimaeric fruiting bodies [6]. Here we show that genetically similar isolates of M. xanthus from a centimeter-scale population [7] also exhibit strong and pervasive antagonisms when mixed in development. Negative responses to chimerism were less intense, on average, among local strains than among global isolates, although no significant correlation was found between genetic distance at multi-locus sequence typing (MLST) loci and the degree of social asymmetry between competitors. A test for self/non-self discrimination during vegetative swarming revealed a great diversity of distinct self-recognition types even among identical MLST genotypes. Such non-self exclusion may serve to direct the benefits of cooperation to close kin within diverse populations in which the probability of social conflict among neighbours is high.
Related Links	http://dx.doi.org/10.1016/j.cub.2009.08.061
Ending Page	1767
Page Count	5
Starting Page	1763
File Format	PDF
ISSN	09609822
e-ISSN	18790445
Journal	Current biology : CB
Issue Number	20
Volume Number	19
Language	English
Publisher Date	2009-11-01
Access Restriction	Open
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Neuroscience Biochemistry, Genetics and Molecular Biology Agricultural and Biological Sciences

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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