PJB-2020-24
GENETIC DIVERSITY OF SOME SOLANUM SPECIES IN SAUDI ARABIA SOUTH-WEST HIGHLANDS.
Gamal A. El-Shaboury
Abstract
Biodiversity of 14 Solanum populations representing 11 species in Saudi Arabia was evaluated using morphological variations and genetic diversity as demonstrated by molecular polymorphism generated by 13 ISSR primers. Substantial variations were scored in 26 morphological characters and reflected in the clustering of the examined populations. Solanum incanum and S. glabratum were delimited together from other species. Also, S. villosum and S. nigrum were clustered together at low distance and with S. dulcamara but at higher distance. In the clustering based on ISSR markers, two populations of S. villosum, two populations of S. nigrum and S. torvum were differentiated as one cluster associated with S. dulcamara and S. sisymbriifolium. In the meantime, S. coagulans was clustered with S. macracanthum. These results are congruent with the tree obtained from the analysis of morphological data and confirm that S. villosum is related to S. nigrum. The clustering of S. schiperianum with S. incanum and S. glabratum together is not supported by their grouping based on the morphological traits. In contrast, the presence of S. torvum in the same cluster with S. nigrum was confirmed by the morphological analysis. The results revealed that S. sisymbriifolium and S. dulcamara are new records for Saudi Arabia.
To Cite this article:
Download
