Micro-CT phenotype-genotype association in <em>Platygyra daedelea</em> corals

Environmental factors have long been recognized as the primary drivers of corals' intraspecific morphological variation, as demonstrated in numerous species. However, coral calcification is a process that depends on both environmental and biological factors. Understanding the extent to which genetics contributes to morphological variation in corals remains lacking, particularly in corals like Platygyra daedalea, a species with complex morphological variation that has been found to be neither induced environmentally nor driven by genetic divergence. To address this gap, we conducted a pilot genome-wide association study using single-nucleotide polymorphism and phenotype data of eight skeletal traits, obtained through restriction enzyme site-associated DNA sequencing and micro-computed tomography, respectively. Here, we demonstrate that genetics contributes to the variation of specific Platygyra daedalea skeletal traits, particularly porosity ratio, interseptal distance, and septal thickn..., , # Micro-CT phenotype-genotype association in *Platygyra daedelea* corals Dataset DOI: 10.5061/dryad.9s4mw6mvv #### Platygyra_daedelea_Micro-CT_Skeletal_Measurements.csv A comma-separated file, which includes 8 skeletal traits of 82 *Platygyra daedelea* coral fragments. The skeletal traits are as follows: valley width (VW), columella width (CW), theca thickness (TT), septal thickness (ST), septal distance (SS), valley depth (VD), porosity ratio (volume_fraction), and septa teeth count. All traits had 10 measurements per coral, which were then averaged per coral, except for the porosity ratio. Additionally, all measurements are in mm, with the exception of the septa teeth count and porosity ratio. #### Code_Script.tar * Analysis of PDAE phenotypes: an R file with a script analyzing the skeletal measurements CSV file using analysis of variance between the coral collection sites groups, and correlation between the skeletal traits. * Population genetics and association analysis for PDA..., ,