Publications by authors named "Livia Peluso"

The seascape comprises multiple environmental variables that interact with species biology to determine patterns of spatial genetic variation. The environment imposes spatially variable selective forces together with homogenizing and diverging drivers that facilitate or restrict dispersal, which is a complex, time-dependent process. Understanding how the seascape influences spatial patterns of genetic variation remains elusive, particularly in coastal upwelling systems.

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Article Synopsis
  • The study examines the genetic diversity and connectivity of four species of Scurria limpets along the Chilean coast, focusing on how environmental and historical factors affect their demographics.
  • It identifies two main genetic breaks among the species, one shared by S. araucana and S. variabilis at 22-25° S, and another common to three species around 31-34° S, indicating limited dispersal influenced by oceanographic features.
  • The research also reveals demographic events like population bottlenecks in some species and overall recent population expansions, highlighting the importance of comparing multiple species in understanding the effects of environmental gradients on genetic diversity.
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The study of sister species that occur in parapatry around biogeographic transition zones can help understand the evolutionary processes that underlie the changes in species composition across biogeographic transition zones. The South Eastern Pacific (SEP) coast is a highly productive coastal system that exhibits a broad biogeographic transition zone around 30-35°S. Here, we present a comparative genome-wide analysis of the sister species and , that occur in parapatry and whose poleward and equatorward range edges intersect in the 30-35°S SEP biogeographic transition zone.

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In the Southwest Atlantic, coral reefs are unique due to their growth form, low species richness, and a high level of endemic coral species, which include the most important reef builders. Although these reefs are the only true biogenic reefs in the South Atlantic Ocean, population genetic studies are still lacking. The purpose of this study was to develop a suite of microsatellite loci to help gain insights into the population diversity and connectivity of the endemic scleractinian coral with the largest distributional range along the Southwest Atlantic coast, Mussismilia hispida Fourteen microsatellite loci were characterized, and their degree of polymorphism was analyzed in 33 individuals.

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