Abstract
BackgroundRosa damascena Mill is a well-known species of the rose family. It is famous for its essential oil content. The aim of the present study was to assess the genetic diversity and population structure of a mini core collection of the Iranian Damask rose germplasm. This involved the use of universal rice primers (URP) and start codon targeted (SCoT) molecular markers. ResultsFourteen URP and twelve SCoT primers amplified 268 and 216 loci, with an average of 19.21 and 18.18 polymorphic fragments per primer, respectively. The polymorphic information content for URR and SCoT primers ranged from 0.38 to 0.48 and 0.11 to 0.45, with the resolving power ranging from 8.75 to 13.05 and 9.9 to 14.59, respectively. Clustering was based on neighbor-joining (NJ). The mini core collection contained 40 accessions and was divided into three distinct clusters, centered on both markers and on the combination of data. ConclusionCluster analysis and principal coordinate analysis were consistent with genetic relationships derived by STRUCTURE analysis. The findings showed that patterns of grouping did not correlate with geographical origin. Both molecular markers demonstrated that the accessions were not genetically diverse as expected, thereby highlighting the possibility that gene flow occurred between populations.
Highlights
Rosa damascena Mill is a well-known species of the rose family
There was a variation in polymorphism information content (PIC) values from 0.38 (URP-4) to 0.48 (URP-1) with an average of 0.42
Crop improvement is influenced by information about the degree and distribution of genetic variation, as well as relationships between breeding materials
Summary
Rosa damascena Mill is a well-known species of the rose family. It is famous for its essential oil content. The aim of the present study was to assess the genetic diversity and population structure of a mini core collection of the Iranian Damask rose germplasm. This involved the use of universal rice primers (URP) and start codon targeted (SCoT) molecular markers. Several molecular assays have been used in recent years to test the genetic variation of various rose plants [14,15,16,17,18,19,20,21,22] In theory, these molecular approaches, operations, classes, polymorphic count, function, and time requirements are varied
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