Temporal dynamics of genetic clines of invasive European green crab (Carcinus maenas) in eastern North America.

ABSTRACT: Two genetically distinct lineages of European green crabs (Carcinus maenas) were independently introduced to eastern North America, the first in the early 19th century and the second in the late 20th century. These lineages first came into secondary contact in southeastern Nova Scotia, Canada (NS), where they hybridized, producing latitudinal genetic clines. Previous studies have documented a persistent southward shift in the clines of different marker types, consistent with existing dispersal and recruitment pathways. We evaluated current clinal structure by quantifying the distribution of lineages and fine-scale hybridization patterns across the eastern North American range (25 locations, ~39 to 49°N) using informative single nucleotide polymorphisms (SNPs; n = 96). In addi

SUBMITTER: Lehnert SJ 

PROVIDER: S-EPMC6183463 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature