Phylogeographic analyses of a circumarctic coastal and a boreal lacustrine mysid crustacean, and evidence of fast postglacial mtDNA rates

Phylogeographic structures of two weakly dispersing Mysis sibling species, one with a circumarctic coastal, the other with a boreal lacustrine‐Baltic distribution, were studied from mitochondrial cytochrome c oxidase subunit I (COI) gene sequences. Mysis segerstralei showed high overall diversity and little phylogeographic structure across the Arctic, indicating late‐glacial dispersal among coastal and lake populations from Alaska, Siberia and...