EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The role of symbiosis in adaptation and speciation Role de la symbiose dans ladaptation et la speciation


Bulletin de la Societe Zoologique de France Evolution et Zoologie, 1204: 397-406
The role of symbiosis in adaptation and speciation Role de la symbiose dans ladaptation et la speciation
Symbiosis is an association, at least during a part of the life cycle, between two or several specifically distinct organisms. This association, completed by the coadaptation and the coevolution of partners, leads to the formation of a new biological entity, the symbiocosme, itself submitted to natural selection. Concerning physiology, symbiosis generally improves the degree of adaptation to the environment. From a genetical point of view, symbiosis is a sophisticated mechanism with which to acquire new genes by lateral transfer. The integration of symbiotes to the host metabolism is sometimes so high that the symbiote looks like a cytoplasmic organelle, as in the weevil Sitophilus oryzae. This is an argument in favor of the serial endosymbiosis theory, according to which mitochondria and plasts would be of symbiotic origin. Concerning speciation, it could be facilitated by gene transfer and by the incompatibility phenomenon which leads to reproductive isolation.


Accession: 038805452



Related references

Role de la symbiose dans l'adaptation et la speciation. 1995

The role of symbiosis in adaptation and speciation. Bulletin de la Societe Zoologique de France Evolution et Zoologie 120(4): 397-406, 1995

Determination of trace element speciation and the role of speciation in aquatic toxicity. Science of the Total Environment 125: 1-13, 1992

Cryptic speciation in the vermilion rockfish (Sebastes miniatus) and the role of bathymetry in the speciation process. Molecular Ecology 17(4): 1122-1136, 2008

Speciation by selection A framework for understanding ecologys role in speciation. Current Zoology 59(1): 31-52, 2013

The role of inversions in adaptation and speciation. Ontogenez 25(2): 20-23, 1994

The role of habitat preference in adaptation and speciation. Otte, D And J A Endler (Ed) Speciation And Its Consequences Xiii+679p Sinauer Associates, Inc : Sunderland, Massachusetts, Usa Illus Maps 345-365, 1989

L'isolement sexuel: determinisme et role dans la speciation. Annee Biologique 4: 6: 271-285, 1967

Le polymorphisme chromosomique et son role dans la speciation chez les arthroprodes. Memoires Soc Zool Fr, 37: 335-362, 1974

Eco-physiological role of insulin resistance in energetic metabolism adaptation to natural hypocaloric conditions in the sand rat Psammomys obesus Role eco-physiologique de linsulino-resistance dans ladaptation du metabolisme energetique aux conditions naturelles hypocaloriques cas dune espece deserticole, le Psammomys obesus. Bulletin de la Societe Zoologique de France, 1311: 23-42, 2006