The Use of Morphological and AFLP Markers in Diversity Analysis of Linseed

Different methods of genetic diversity measures could give better judgment of differentiating important accessions for growers, germplasm curators and plant breeders. Data of 60 accessions of linseed, mainly from Ethiopia, were used to assess their genetic diversity, employing morphological and amplified fragment length polymorphism (AFLP) methods. Analyses of genetic distance, principal components and clusters showed the presence of a wide range of diversity among the studied accessions. The mean for genetic distance estimates of the entire 1770 pairwise accessions was 0.6684 for morphology, while that of AFLP was 0.5734. These genetic distances varied from zero to one for morphology in contrast to 0.29 to 0.71 of the AFLP. Morphological and AFLP based clusters and their accompanying analyses showed different hierarchical patterns of genetic diversity among the accessions. Despite their disparity, the two diversity measures were found independently useful for assessing the degree of relatedness and the overall patterns of genetic variation among the analysed linseed accessions.