Seascape Genomics of Elacatinus punctiulatus (Ginsburg, 1938): Understanding the Historical and Contemporary Drivers of Population Structure in the Gulf of California.

The genomic diversity and population structure of marine species represents a complex mosaic shaped by historical and contemporary environmental seascape features that maintain or alter it over time. The Gulf of California (GC) is an interior sea with a dynamic history during its formation and a contemporary environmental and oceanographic complexity; hence, it is a suitable system to test the effect of historical and contemporary factors on genomic diversity in marine species. We investigated the genomic seascape of the redhead goby (Elacatinus puncticulatus; Ginsburg, 1938), a cryptobenthic marine fish, to gain insights into the historical and contemporary drivers shaping its population structure in the GC.