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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

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

Paul B. Rainey

Benjamin Kerr

Publisher:
The MIT Press
DOI:10.7551/mitpress/9780262015240.003.0009

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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