Evaluation of the genetic diversity of Inula Viscosa (Vahl) Mast. In northwestern Algeria

Abstract

As part of the study of plant genetic resources, we were interested of a medicinal and aromatic plant Inula viscosa, Following the absence of characterization of this species in Algeria we saw it useful to start with the morpho-metric study of the population of Inula viscosa in western Algeria. , A workforce of 175 plants, distributed at the level of seven regions is the subject of this investigation. 15 quantitative traits and 12 qualitative traits were selected for this study. The region has a significant effect on all characters. The principal component analysis (PCA) and the Ascending Hierarchical Classification (CAH) allowed to distinguish four groups of populations, a factorial analysis of the multiple correspondences (ACM) highlighted differences as for the qualitative parameters. The CAH (Ascendant Hierarchical Classification) made from an input matrix composed of 12 qualitative characters allowing to identify 5 groups of characters. Finally, the relative index of genetic diversity (H’) gives average and almost identical values for the seven localities, which is probably the reflection of significant genetic diversity. The estimated H' of 175 plant showed a moderate phenotypic variability for different traits with mean of 0.287.