2-AIN-506 a 2-AIN-252: Seminár z bioinformatiky (2) a (4)
Leto 2016

Erich D. Jarvis, Siavash Mirarab et al.. Whole-genome analyses resolve early branches in the tree of life of modern birds. Science, 346(6215):1320-1321. 2014.

Download preprint: not available

Download from publisher: not available PubMed

Related web page: not available

Bibliography entry: BibTeX


To better determine the history of modern birds, we performed a genome-scale
phylogenetic analysis of 48 species representing all orders of Neoaves using
phylogenomic methods created to handle genome-scale data. We recovered a highly
resolved tree that confirms previously controversial sister or close
relationships. We identified the first divergence in Neoaves, two groups we named
Passerea and Columbea, representing independent lineages of diverse and
convergently evolved land and water bird species. Among Passerea, we infer the
common ancestor of core landbirds to have been an apex predator and confirm
independent gains of vocal learning. Among Columbea, we identify pigeons and
flamingoes as belonging to sister clades. Even with whole genomes, some of the
earliest branches in Neoaves proved challenging to resolve, which was best
explained by massive protein-coding sequence convergence and high levels of
incomplete lineage sorting that occurred during a rapid radiation after the
Cretaceous-Paleogene mass extinction event about 66 million years ago.