Genetic Variation and Genomic Constitution in The Spatulata Orchid Hybrids (Dendrobium spp.) Derived from Interspecific Hybridization Using SRAP marker

Dendrobium is the second largest genus in Orchidaceae family. section Spatulata widely cultivated Indonesia due to its ease of cultivation, high economic value and adaptability, extended flower shelf life. In this study, we have conducted a breeding program for developing new cultivar through interspecific hybridization. This study aimed investigate genetic variation genomic constitution eight hybrids their corresponding parental lines resulted from hybridization using SRAP markers. produced by are genuine with substantial variability based on morphology, including labellum shapes color intensities, as well curly horn intensities. The marker, which was utilized genotype hybrid lines, exhibited significant degree polymorphism, may be used distinguish each accession. UPGMA dendrogram PCoA biplot showed that all were grouped background constitution. These findings critical improvement orchid develop novel varieties.