GTseq DNA sequencing of Kelletia kelletii collected in California, USA and Baja, Mexico from 2015 to 2017

Le résumé fourni par la source

Climate-driven warming and changes in major ocean currents enable poleward transport and range expansions of many marine species. Here, we report the population genetic assignment of post-dispersal recruits to pre-dispersal natal source locations for the gastropod Kellet’s whelk (Kelletia kelletii), a commercial fisheries species and subtidal predator with top-down food web effects, whose populations have recently undergone climate-driven northward range expansion. This dataset includes sample id, collection site and year, tissue type, length, and extraction information for samples sequenced. Samples were collected between 2015-2017. We genotyped 2,874 individuals from 24 locations across the species’ entire biogeographic range using 305 genotyping-in-thousands by sequencing (GT-Seq) loci. Analysis shows a large contribution of 1-year old recruits from the historical range to the expanded range, variable post-settlement survival of those recruits in the expanded range in relation to their natal origin, and that El Niño Southern Oscillation may play a role in long distance dispersal.

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