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 (sĭm′bē-ō-jĕn′ĭ-sĭs, -bī-)
The formation of a new organism through the merging of two or more free-living organisms. Some biologists believe that symbiogenesis is an important mechanism of evolutionary change.

sym′bi·o·ge·net′ic (-jĕ-nĕt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
(23.) Biologists Lynn Margulis, Margaret McFall-Ngai, and Scott Gilbert dissolve these boundaries, calling attention to symbiogenesis and the entanglements through which microorganisms drive deep histories of variation and co-evolution.
Haraway prefers the term symbiogenesis to stress that the "ordinary is a multipartner mud dance issuing from and in entangled species."
Neo-Darwinism ignores important rapid evolutionary processes such as symbiogenesis, horizontal DNA transfer, action of mobile DNA and epigenetic modifications.
Symbiogenesis: The holobiont as a unit of evolution.
Hird's work on bacteria and microbial communication as well as her emphasis on "symbiogenesis" among bacteria and humans in The Origins of Sociable Life: Evolution After Science Studies similarly argues for post-anthropocentric approaches to notions of not only communication but also "communities" and indeed, what constitutes the "social" (2009).
The second part discusses an assortment of topics, including symbiogenesis, cognitive ecology, genetic draft, genomic conflict, avian evolutionary genomics, elevational gradients, cytonuclear genomic interactions, molecular phylogenetics of Australian flora, introgression of crop alleles, facilitation, assisted gene flow, the genus Spartina, diversification on islands, mate choice, thermal ecology, diversity and competition, ecosystem collapse in the face of climate change, conservation biology, forest lepidoptera, biomass distribution of forests, and symbiont transmission.
It relates to the evolutionary process that biologist Lynn Margulis calls symbiogenesis, whereby all complex life forms are the products of endless replication and multidirectional acts of mutation.
The implications of the living systems metaphor and of Margulis' (1986) concept of symbiogenesis, in particular, for the firm's supplier and customer management processes will be explored in a future article.
The concept was expanded with added speciating agency, in 1909, as symbiogenesis by Konstantin Mereschkowsky, who posited "the origin of [new] organisms through the association or combination of two or more beings that enter in symbiosis" as a substitute for speciation via Darwin's evolutionary theory (34).
(17) Similarly, Haraway (forthcoming) suggests that we must think about symbiogenesis as a form of becoming-with in responsibility, not autopoesis.
Best known for her work on the origins of eukaryotic cells, symbiogenesis as a force in evolution, and the Gaia hypothesis, Lynn Margulis was a scientist whose lively spirit and frank opinions left behind an enduring legacy that's well worth remembering.
1E) resembling a plastid of eukaryotic origin like the complex plastids of Chlorarachnio-phytes at an evolutionary early stage of symbiogenesis (Habetha et al., 2003).