Abstracts (first author)

Talk 

Relatedness and the evolution of multicellularity

Author(s): Fisher RM

Summary:

It has been argued that a high genetic relatedness (r) between cells played a pivotal role in the evo-lutionary transition from single-celled to multicellular organisms. We tested this hypothesis with a comparative study, comparing the form of multicellularity in species where groups are clonal (r = 1), to species where groups are potentially non-clonal (r ≤ 1). We found that: (1) only species with clonal group formation have undergone the major evolutionary transition to obligate multicellularity; (2) clonal organisms had more cell types, a higher likelihood of sterile cells and a trend towards higher numbers of cells in a group. More generally, our results build upon previous studies of animals, to show how group formation and genetic relatedness have played analogous roles in the three evolutionary transitions to multicellularity, cooperative breeding and eusociality.



Contacts

Chairman: Octávio S. Paulo
Tel: 00 351 217500614 direct
Tel: 00 351 217500000 ext22359
Fax: 00 351 217500028
email: mail@eseb2013.com

Address

XIV Congress of the European Society for Evolutionary Biology

Organization Team
Department of Animal Biology (DBA)
Faculty of Sciences of the University of Lisbon
P-1749-016 Lisbon
Portugal

Website

Computational Biology & Population Genomics Group 
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