Demographic histories shape population genomics of the common coral grouper (Plectropomus leopardus)

Many coral reef fishes display remarkable genetic and phenotypic variation across their geographic ranges. Understanding how historical and contemporary processes have shaped these patterns remains a focal question in evolutionary biology since they reveal how diversity is generated and how it may respond to future environmental change. Here we compare the population genomics and demographic histories of a commercially and ecologically important coral reef fish, the common coral grouper (Plectropomus leopardus [Lacépède 1802]), across two adjoining regions (the Great Barrier Reef; GBR, and the Coral Sea, Australia) spanning approximately 14 degrees of latitude and 9 degrees of longitude. We analysed 4,548 single nucleotide polymorphism (SNP) markers across 11 sites and show that genetic connectivity between regions is low, despite their relative proximity (~ 100 km) and an absence of any obvious geographic barrier. Inferred demographic histories using 10,479 markers suggest that the Cor..., ,
radiator_data_20220330_1452.vcf contains the dataset with neutral markers
radiator_data_20220225_1456.vcf contains the dataset with outlier markers
radiator_data_20220225_1927.vcf contains the dataset with markers used for demographic inference
strata.filtered.tsv contains individual population metadata

Filtering parameters and quality control are discussed in detail in Payet et al. (2022), Evolutionary Applications