Evolutionary and ecological trees and networks

Hernández-García, E.; Herrada, E. A.; Rozenfeld, A. F.; Tessone, C. J.; Eguíluz, Víctor M.; Duarte, C. M.; ARNAUD-HAOND, Sophie; Serrão, Ester

http://hdl.handle.net/10400.1/4203

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Abstract(s)

Evolutionary relationships between species are usually represented in phylogenies, i.e. evolutionary trees, which are a type of networks. The terminal nodes of these trees represent species, which are made of individuals and populations among which gene flow occurs. This flow can also be represented as a network. In this paper we briefly show some properties of these complex networks of evolutionary and ecological relationships. First, we characterize large scale evolutionary relationships in the Tree of Life by a degree distribution. Second, we represent genetic relationships between individuals of a Mediterranean marine plant, Posidonia oceanica, in terms of a Minimum Spanning Tree. Finally, relationships among plant shoots inside populations are represented as networks of genetic similarity.

Keywords

Complex networks Phylogenies Tree of Life Population structure Genetic similarity Posidonia oceanica

URI

http://hdl.handle.net/10400.1/4203

Citation

Hernández-García, E.; Herrada, E.A.; Rozenfeld, A.F.; Tessone, C.J.; Eguíluz, V.M.; Duarte, C.M.; Arnaud-Haond, S.; Serrão, E.A.Evolutionary and ecological trees and networks, AIP Conference Proceedings, 913, SN, 78-83, 2007.