Evolutionary and biogeographical patterns within the smelt genus Hypomesus in the North Pacific Ocean
نویسندگان
چکیده
Methods Relationships of the five species of Hypomesus from throughout the North Pacific were reconstructed through maximum likelihood and Bayesian phylogenetic analyses of sequence data from two mitochondrial (cytb, 16S) and three nuclear (ITS2, S71, RAG1) gene regions of five to 25 individuals per species, totalling 3588 characters. The resulting phylogenies were used to test hypotheses of species relationships and geographical origins using both dispersal-based and maximum likelihood methods for inferring ancestral areas (lagrange). Cytb sequence divergence and a Bayesian approach (beast) were used to estimate the timeframe of Hypomesus evolution, which was compared with work on similarly distributed taxa.
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