Genome-wide association study (GWAS) provides insights into the genomic basis of reproduction-related traits in Chouardia litardierei (Asparagaceae)

By implementing GEA and GWAS, we revealed a list of candidate loci significantly associated with adaptation to specific environmental variables and morphological traits related to sexual and asexual reproduction in C. litardierei. These findings provide a foundation for a deeper understanding of the molecular mechanisms driving the local adaptation processes occurring among C. litardierei populations from different habitat types. At the same time, the high heritability estimates of morphological traits further underscore the significance of genetic factors in the local adaptation process.