Diversity within and between populations of two sympatrically distributed Hordeum species in Jordan |
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Authors: | A. A. Jaradat |
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Affiliation: | (1) Department of Agricultural Sciences, Jordan University of Science and Technology, P.O. Box 3030, Irbid, Jordan |
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Abstract: | Summary The diversity of two sympatrically distributed barley species (Hordeum vulgare L. and Hordeum spontaneum C. Koch.) has been assessed for 7 morphometric and 13 qualitative traits. Phenotypically, Hordeum vulgare was more stable than Hordeum spontaneum for all morphometric traits; this is a reflection of domestication and selection. The overall diversity indexes were 0.546±0.125 and 0.502±0.113 for Hordeum vulgare and Hordeum spontaneum, respectively (P=0.095). However, Hordeum spontaneum expressed a higher level of diversity for most qualitative traits. The observed similarity for a number of diversity indexes is probably due to gene flow between the two species. |
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Keywords: | Hordeum vulgare H. spontaneum Population diversity Quantitative traits Qualitative traits |
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