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The Major Transitions in Evolution Revisited$
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Brett Calcott and Kim Sterelny

Print publication date: 2011

Print ISBN-13: 9780262015240

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262015240.001.0001

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Conflicts among Levels of Selection as Fuel for the Evolution of Individuality

Conflicts among Levels of Selection as Fuel for the Evolution of Individuality

(p.141) 8 Conflicts among Levels of Selection as Fuel for the Evolution of Individuality
The Major Transitions in Evolution Revisited

Paul B. Rainey

Benjamin Kerr

The MIT Press

This chapter describes the evolutionary transition from single cells to multicellular individuals. It shows that in multicellular organisms, individuality is ultimately a property of individual cells that give rise to a multicellular organism in each generation. It then investigates the breakdown of cooperation, in the course of developing a heterodox idea on the origins of the germ-soma distinction. It examines the evolution of multicellular development in the Pseudomonas system by introducing a discrete-time theoretical model. The described unconventional life cycles that span the multilevel selection (MLS)-1 to MLS-2 juncture are founded in experimental reality.

Keywords:   evolutionary transition, multicellular organisms, individuality, cooperation, Pseudomonas, theoretical model, life cycles, multilevel selection

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