Sebastosomus 2017-12-20T16:17:17+00:00

sebastosomus

Sebastosomus

In collaboration with Dr. Andres Aguilar at Cal State LA, we are investigating the genomic signature of environmental adaptation in 5 closely related rockfish in the subgenus Sebastasomus. We have developed the ddRADseq method for all 5 species to confirm the plylogenic associations and degree of divergence. We have just finished building a geographic library for the two species of blue rockfish (Sebastes mystinus Type 1 and Type 2). Our future project will look at the geographic distribution that includes all five species in this subgenus.

ML tree using mtDNA 309 bps of control region sequence data for the rockfish subgenus Sebastosomus (S. alutus and S. marinus are the outgroups)

ML tree using mtDNA 309 bps of control region sequence data for the rockfish subgenus Sebastosomus (S. alutus and S. marinus are the outgroups)

Map of the approximate distribution of all 5 species of the Sebastosomus group. * indicated samples collected  indicates locations that we are targeting for samples. Lower map shows some of the environmental features that change along this region of overlap including sea surface temperature (SST), upwelling index, and dispersal barriers (indicated by arrows).

Map of the approximate distribution of all 5 species of the Sebastosomus group. * indicated samples collected indicates locations that we are targeting for samples. Lower map shows some of the environmental features that change along this region of overlap including sea surface temperature (SST), upwelling index, and dispersal barriers (indicated by arrows).

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