bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2021, Volume and Issue: unknown

Published: July 26, 2021

Abstract Many processes of biological diversification can simultaneously affect multiple evolutionary lineages. Examples include members a gene family diverging when region chromosome is duplicated, viral strains at “super-spreading” event, and geological event fragmenting whole communities species. It difficult to test for patterns shared divergences predicted by such processes, because all phylogenetic methods assume that lineages diverge independently. We introduce Bayesian approach relax the assumption independent, bifurcating expanding space topologies trees with multifurcating divergences. This allows us jointly infer relationships, divergence times, or lead more than two descendant Using simulations, we find new method accurately infers events they occur, performs as well current are independent bifurcating. apply our genomic data from genera geckos across Philippines if past changes islands’ landscape caused bursts speciation. Unlike previous analyses restricted only pairs gecko populations, evidence By generalizing in way likelihood model, opens many avenues future research into life sciences. Significance statement Phylogenetic models have long assumed Processes interest biogeography, epidemiology, genome evolution, violate this affecting To conceptualizing, modeling, inferring trees. distributed Philippines, support repeated fragmentation archipelago interglacial rises sea level.

Language: Английский