Taxonomic significance of seed sculpture and pollen ecto-mycoflora at the infraspecific level: Brassica tournefortii case study |
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Authors: | Walaa Hassan Asmaa Abdelhameed Najla A Al Shaye Wafaa Amer |
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Institution: | 1. Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt;2. Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia;3. Botany & Microbiology Dept., Faculty of Science, Cairo University, Egypt |
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Abstract: | Several populations of Brassica tournefortii (Brassicaceae) occurring in Egypt are investigated from the micromorphological point of view (seed ornamentations). The species is known to show a notable phenotypic plasticity and five morphotypes was identified in the past. Furthermore, a soil analysis as well as a study of the fungal species from anthers were carried out. The aim of the study is to verify the taxonomic value of the morpholotypes of B. tournefortii and their ecologic relationship with soil variables. The results obtained demonstrated that the five morphological forms can be distinguished based on the seed sculpture. The Canonical Correspondence Analysis (CCA) exhibited a clear correlation between the soil variables and the identified forms. Six species of fungi were detected from the ecto-anthers in the Forms (F2-F4), while F1 was lacking the fungal species. The study revealed that the morphological plasticity of studied B. tournefortii depends on ecological factors. |
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Keywords: | Ecto-mycoflora Infraspecific diversity Morpho-plasticity Seed sculpture |
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