SEMINAR: Can asexual organisms speciate? Theoretical framework and empirical evidence

UNIVERSITY OF PARMA

19 November 2010
Ore 12 – Aula 2 Plesso Biologico

Diego Fontaneto
Division of Biology – Ecology and Evolution Section
Imperial College London
UK

Can asexual organisms speciate? Theoretical framework and empirical evidence

The evolution of distinct species in animals has often been considered a property solely of sexually reproducing organisms. Nevertheless, a notorious group of asexual (=parthenogenetic) animals, the bdelloid rotifers, has diversified into distinct species, with patterns equivalent to those found in sexual groups. With new statistical methods for the combined analysis of morphology and DNA sequence data, independent evolution of species in bdelloids has been confirmed. Moreover, the most important process driving such divergence, namely ecological divergence by natural selection, is present. Thus, sex is not the sole and necessary condition for speciation.

PDF

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s