Endosymbiosis and its implications for evolutionary theory.
Proc Natl Acad Sci U S A
; 112(33): 10270-7, 2015 Aug 18.
Article
en En
| MEDLINE
| ID: mdl-25883268
ABSTRACT
Historically, conceptualizations of symbiosis and endosymbiosis have been pitted against Darwinian or neo-Darwinian evolutionary theory. In more recent times, Lynn Margulis has argued vigorously along these lines. However, there are only shallow grounds for finding Darwinian concepts or population genetic theory incompatible with endosymbiosis. But is population genetics sufficiently explanatory of endosymbiosis and its role in evolution? Population genetics "follows" genes, is replication-centric, and is concerned with vertically consistent genetic lineages. It may also have explanatory limitations with regard to macroevolution. Even so, asking whether population genetics explains endosymbiosis may have the question the wrong way around. We should instead be asking how explanatory of evolution endosymbiosis is, and exactly which features of evolution it might be explaining. This paper will discuss how metabolic innovations associated with endosymbioses can drive evolution and thus provide an explanatory account of important episodes in the history of life. Metabolic explanations are both proximate and ultimate, in the same way genetic explanations are. Endosymbioses, therefore, point evolutionary biology toward an important dimension of evolutionary explanation.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Simbiosis
/
Evolución Biológica
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Año:
2015
Tipo del documento:
Article