Symbioses: Plant, Animal, and Microbe Interactions
Wang, Bin , Qiu, Yin-Long .
Origin and Evolution of DMI3, a Gene Involved in Plant-Mycorrhizal Fungus Symbiosis.
DESPITE the widespread occurrence of mycorrhizas among land plants and their importance in both natural and agricultural ecosystems, little is known about evolution of the genetic basis of this mutualistic symbiosis. Recently, the gene DMI3 has been identified in legumes as a crucial component of the genetic machinery controlling mycorrhizal development. In this study, we isolated DMI3 orthologs from many liverworts, mosses, hornworts and early vascular plants. By reconstructing the gene phylogeny, we attempt to investigate the origin and evolutionary pattern of this gene, and to further test the hypothesis that mycorrhizas played an essential role in faciliating the colonization of land by plants.
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1 - University of Michigan, Department of Ecology & Evolutionary Biology, 830 North University Avenue, Ann Arbor, Michigan, 48109-1048, USA
Presentation Type: Oral Paper:Papers for Topics
Date: Monday, July 31st, 2006
Time: 10:15 AM