MOLECULAR CHARACTERIZATION OF ELITE LINES OF PAPAYA (Carica papaya L.) VIA SSR MARKERS

This study aimed to analyze the genetic variability and estimate diversity parameters of 23 elite papaya lines based on microsatellite molecular markers. The plant material was composed lines, 18 from 'Formosa' five 'Solo' group. expected heterozygosity (HE), observed (HO), coefficient inbreeding (ƒ) for each genotype were estimated. weighted index obtained dissimilarity matrix, estimated distance presented graphically through cluster analysis by Ward method, as well principal coordinates (PCoA). genotypes also analyzed structure, using Bayesian clustering method. Genetic among genotypes, mainly Formosa As HO, four ‘Solo’ group had values equal zero. However, ‘Formosa’ showed higher segregation in loci with ranging 0.05 0.14. About ƒ, group, exhibited maximum fixation indexes loci, variation 0.90 1.0, while a 0.61 1.00. These results indicate need greater care process obtaining seeds avoid pollen contamination, advance generations self-fertilization increase level ensure stability hybrids that are developed them.