J L Sachs
Affiliation: University of California
- The evolution of cooperative breeding; is there cheating?Joel L Sachs
Department of Integrative Biology, University of California, Berkeley, USA
Behav Processes 76:131-7. 2007
- Experimental evolution of conflict mediation between genomesJoel L Sachs
Section of Integrative Biology, Patterson Laboratories, University of Texas, 1 University Station C0930, Austin, TX 78712 0253, USA
Proc Natl Acad Sci U S A 102:390-5. 2005..Our results parallel a variety of conflict mediation mechanisms existing in nature: evolution of reduced genomes in symbionts, cotransmission of partners, and obligate coexistence between cooperating species...
- A shift to parasitism in the jellyfish symbiont Symbiodinium microadriaticumJoel L Sachs
Section of Integrative Biology, Patterson Laboratories, 1 University Station C0930, University of Texas, Austin, TX 78712 0253, USA
Proc Biol Sci 273:425-9. 2006..Our results demonstrate the dynamic nature of this symbiosis and illustrate the potential ease with which beneficial symbionts can evolve into parasites...
- Pathways to mutualism breakdownJoel L Sachs
University of California Berkeley, Department of Integrative Biology, Berkeley, CA 94720, USA
Trends Ecol Evol 21:585-92. 2006..By contrast, diverse systems exhibit reversions to autonomy, and this might be a common and unexplored endpoint to mutualism...
- Cooperation within and among speciesJ L Sachs
Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
J Evol Biol 19:1415-8; discussion 1426-36. 2006
- Origins of cheating and loss of symbiosis in wild BradyrhizobiumJ L Sachs
Integrative Biology, University of California, Berkeley, CA, USA
J Evol Biol 23:1075-89. 2010..This is the first study to reveal the adaptive nature of rhizobial cheating and to trace the evolutionary origins of uncooperative rhizobial mutants...
- Host control over infection and proliferation of a cheater symbiontJ L Sachs
University of California, Riverside, CA 92521, USA
J Evol Biol 23:1919-27. 2010..These results can explain how a rapidly growing cheater symbiont--that exhibits a massive fitness advantage in single infections--can be prevented from sweeping through a beneficial population of symbionts...
- In situ phylogenetic structure and diversity of wild Bradyrhizobium communitiesJ L Sachs
Department of Integrative Biology, University of California, Berkeley, California 94720, USA
Appl Environ Microbiol 75:4727-35. 2009..This pattern suggests that host infection provides ample rewards to symbiotic bacteria but that host specificity can strongly structure only a small subset of the rhizobial community...
- Symbiont genomics, our new tangled bankM Medina
School of Natural Sciences, University of California, Merced, 5200 N Lake Road, Merced, CA 95343, USA
Genomics 95:129-37. 2010..Throughout we describe the questions that these techniques are tackling and we conclude by listing a series of unanswered questions in microbial symbiosis that can potentially be addressed with the new technologies...
- The evolution of cooperationJoel L Sachs
Section of Integrative Biology, University of Texas, Austin, Texas 78712 0253, USA
Q Rev Biol 79:135-60. 2004..Natural systems of cooperation often involve more than one model, and a fruitful direction for future research is to understand how these models interact to maintain cooperation in the long term...
- An empirical test of partner choice mechanisms in a wild legume-rhizobium interactionEllen L Simms
Department of Integrative Biology, University of California, 3060 Valley Life Sciences Building 3140, Berkeley, CA 94720, USA
Proc Biol Sci 273:77-81. 2006..Our survey of wild-grown plants showed that larger nodules house more Bradyrhizobia, indicating that plants may prevent the spread of exploitation by favouring better cooperators...
- Resolving the first steps to multicellularityJoel L Sachs
Department of Biology, University of California, Riverside, CA 92521, USA
Trends Ecol Evol 23:245-8. 2008..Key evolutionary reversals are also revealed, where cellular selfishness might have thwarted multicellular integration...