Evolución:"Toward an extended evolutionary synthesis?" Evosynthesis

evolutionary theory:

the view from altenberg

by Massimo Pigliucci

Evolutionary Theory 1.0: Darwinism

Common descent Natural selection

Missing a theory of heredity(after having flirted with Lamarckism

and blending inheritance)

Evolutionary Theory 1.1: neo-Darwinism

Wallace Weissman

Rejection of Lamarckism Separation of soma and germ

Still missing a theory of heredity...

Evolutionary Theory 2.0: the beginning of the Modern Synthesis

Fisher Haldane Wright

Compatibility between Mendelism and statistical genetics

Theories of selection and random drift: birth of population genetics

Evolutionary Theory 2.1: the mature Modern Synthesis

Dobzhansky Mayr Simpson Stebbins

Variation in natural populations Species concepts, speciation processes Compatibility of gradualism with paleontology Applicability of Darwinism to variety of mating

and genetic systems in plants

Huxley

“The major tenets of the evolutionary synthesis were that populations contain genetic variation that arises by random mutation and

recombination; that populations evolve by changes in gene frequency brought about by random genetic drift, gene flow, and especially natural

selection; that most adaptive genetic variants have individually slight phenotypic effects so that phenotypic changes are gradual; that

diversification comes about by speciation, which normally entails the gradual evolution of reproductive isolation among populations; and that

these processes, continued for sufficiently long, give rise to changes of such great magnitude as to warrant the designation of higher taxonomic levels.”

Doug Futuyma

Do we need Evolutionary Theory 3.0? Toward an Extended Synthesis

“[the Modern Synthesis] is strictly a theory of genes, yet the phenomenon that has to be explained in evolution is that of the transmutation of form.”

(Karl Popper)

How do we factor in development? Is evolution always gradual? Is selection the only organizing principle? What are the targets of selection? Is there a discontinuity between micro- and

macro-evolution? Is the question of inheritance settled? Where do evolutionary novelties come from? Oh, and what about ecology?

The view from Altenberg:taking evo-bio seriously as a historical science,

the role of contingency

John Beatty

The view from Altenberg:multi-level selection theory

is here to stay

!z = cov (W, Z) + E cov (w, z)

(Price 1972)

collectivelevel

particlelevel

David S. Wilson

The view from Altenberg:epigenetic and other inheritances

Genetic Epigenetic (methylation, iRNA,

histone conformation) Behavioral (mimicking) Cultural (traditions, “memes”)

Eva Jablonka

Eors Szathmary

The view from Altenberg: innovation, facilitated variation and the role of physico-chemistry

Gerd Muller Stuart NewmanMarc Kirschner

Is this a paradigm shift?

Thomas Kuhn

Agency: Where natural selection acts (so-called “units of selection problem”).

Efficacy: The relative power of natural selection in comparison to other evolutionary mechanisms.

Scope: The degree to which natural selection can be extrapolated to macroevolutionary processes.

An (extended) synthesis of what?

commondescent

naturalselection

Mendelism

population-statisticalgenetics

paleontology

naturalhistory

paleontology

evo-devogenomics,

networks theory

epigeneticinheritance

multilevelselection theory

evolvability &modularity

plasticity &accommodation

contingency

complexitytheory

nicheconstruction

ecology

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