Population structure of Pacific green turtles: a new perspective from microsatellite DNA variation

This study builds upon the current understanding of green turtle population genetic structure in Pacific that has largely been based on mitochondrial DNA (mtDNA), by examining nuclear (nDNA) diversity, regional connectivity, and male-mediated gene flow. A total 1,111 nesting samples were analyzed with 10 microsatellite markers from 20 rookeries. Population differentiation (F ST ) was significant (p <0.05) all but 8 190 pairwise rookery comparisons. Pairwise F values discriminant analysis principal components (DAPC) revealed a defined East-West split consistent mtDNA studies. Additionally, isolation-by-distance evaluated estimated effective migration surfaces (EEMS). The data indicated throughout rookeries agreement stock studies, except for some areas Central American Australian continental shelves, providing evidence possible series analyses performed did indicate flow likely occurred where breeding corridors separate populations overlap courtship areas. may occur primarily along margins continents, including Mexico America East Pacific. Our provides an ocean-wide baseline nDNA dataset reexamines thinking regarding role male turtles dynamics management units (MU) to what extent occurs among designated MUs.