Out of Africa: Biogeography and diversification of the pantropical pond skater genus Limnogonus Stal, 1868 (Hemiptera: Gerridae).

ABSTRACT: Gondwanan vicariance, long-distance dispersal (LDD), and boreotropical migration have been proposed as alternative hypotheses explaining the pantropical distribution pattern of organisms. In this study, the historical biogeography of the pond skater genus Limnogonus was reconstructed to evaluate the impact of biogeographical scenarios in shaping their modern transoceanic disjunction. We sampled almost 65% of recognized Limnogonus species. Four DNA fragments including 69 sequences were used to reconstruct a phylogram. Divergence time was estimated using a Bayesian relaxed clock method and three fossil calibrations. Diversification dynamics and ancestral area reconstruction were investigated by using maximum likelihood and Bayesian approaches. Our results showed the crown group

SUBMITTER: Ye Z 

PROVIDER: S-EPMC5288246 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature