FN Archimer Export Format PT J TI Contemporary and historical oceanographic processes explain genetic connectivity in a Southwestern Atlantic coral BT AF PELUSO, L. TASCHERI, V. NUNES, Flavia CASTRO, C. B. PIRES, D. O. ZILBERBERG, Carla AS 1:1;2:1;3:2;4:3,4;5:3,4;6:1,4; FF 1:;2:;3:PDG-ODE-DYNECO-LEBCO;4:;5:;6:; C1 Univ Fed Rio de Janeiro, Inst Biol, Dept Zool, Rio De Janeiro, RJ, Brazil. DYNECO, Ifremer Ctr Bretagne, Lab Ecol Benth Cotiere LEBCO, F-29280 Plouzane, France. Univ Fed Rio de Janeiro, Museu Nacl, Dept Invertebrados, Rio De Janeiro, RJ, Brazil. Inst Coral Vivo, Rua Coqueiros 87,Parque Yaya, Santa Cruz Cabralia, BA, Brazil. C2 UNIV FED RIO DE JANEIRO, BRAZIL IFREMER, FRANCE UNIV FED RIO DE JANEIRO, BRAZIL INST CORAL VIVO, BRAZIL SI BREST SE PDG-ODE-DYNECO-LEBCO IN WOS Ifremer jusqu'en 2018 DOAJ copubli-int-hors-europe copubli-sud IF 4.011 TC 37 UR https://archimer.ifremer.fr/doc/00426/53725/54599.pdf https://archimer.ifremer.fr/doc/00426/53725/54600.pdf LA English DT Article AB Understanding connectivity patterns has implications for evolutionary and ecological processes, as well as for proper conservation strategies. This study examined population genetic structure and migration patterns of the coral Mussismilia hispida, one of the main reef builders in the Southwestern Atlantic Ocean. For this, 15 sites were sampled along its entire distributional range employing 10 microsatellite loci. M. hispida was divided into five genetically differentiated populations by Structure analysis. Population structure and migration estimates are consistent with present-day oceanographic current patterns, zones of upwelling and historical sea-level changes. The Central Region and Oceanic Islands populations had the highest genetic diversity, were possibly the main sources of migrants for other populations and presented mutual migrant exchange. This mutual exchange and the high diversity of Oceanic Islands, a peripherical population, is highly interesting and unexpected, but can be explained if these sites acted as refugia in past low sea-level stance. This is the first connectivity study in the region using hyper-variable markers and a fine sampling scale along 3,500 km. These results enlighten the population dynamics of an important reef building species and shows how oceanographic processes may act as barriers to dispersal for marine species, providing valuable information for management strategies. PY 2018 PD FEB SO Scientific Reports SN 2045-2322 PU Nature Publishing Group VL 8 IS 1 UT 000424449100062 DI 10.1038/s41598-018-21010-y ID 53725 ER EF