English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Meta-population structure and the evolutionary transition to multicellularity

Rose, C. J., Hammerschmidt, K., & Rainey, P. B. (2019). Meta-population structure and the evolutionary transition to multicellularity. bioRxiv. doi:10.1101/407163.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0003-704A-C Version Permalink: http://hdl.handle.net/21.11116/0000-0003-704B-B
Genre: Paper

Files

show Files
hide Files
:
407163.full.pdf (Preprint), 5MB
Name:
407163.full.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Rose, Caroline J., Author
Hammerschmidt, Katrin1, Author              
Rainey, Paul B.2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Department Microbial Population Biology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_2421699              

Content

show
hide
Free keywords: -
 Abstract: The evolutionary transition to multicellularity has occurred on numerous occasions, but transitions to complex life forms are rare. While the reasons are unclear, relevant factors include the intensity of within versus between group selection that are likely to shape the course of life cycle evolution. A highly structured environment eliminates the possibility of mixing between evolving lineages thus ensuring strong competition between groups. Less structure intensifies competition within groups decreasing opportunity for group-level evolution. Here we present experiments that contrast two ecological frameworks that differ in the way in which nascent multicellular groups, and their constituent cells, compete. Groups of the bacterium Pseudomonas fluorescens were propagated under a regime requiring reproduction via a life cycle with developmental and dispersal phases. By controlling the extent of mixing during the dispersal phase it was possible to alter the relative emphasis on the two phases. While all groups possessed ‘paradigmatic’ features of multicellular individuals (e.g., bottleneck and germ line), the mode of group interaction substantially affected the strength and direction of selection operating at both group and cell levels. Constraints on meta-population structure may therefore explain the observation that multicellular aggregates rarely complete the transition to individuality.

Details

show
hide
Language(s): eng - English
 Dates: 2019-04-04
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1101/407163
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: bioRxiv
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -