دورية أكاديمية
Morphometrics of Starch Granules From Sub-Saharan Plants and the Taxonomic Identification of Ancient Starch
| العنوان: | Morphometrics of Starch Granules From Sub-Saharan Plants and the Taxonomic Identification of Ancient Starch |
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| المؤلفون: | Julio Mercader, Matthew Abtosway, Robert Bird, Mariam Bundala, Siobhan Clarke, Julien Favreau, Jamie L. Inwood, Makarius Itambu, Fergus Larter, Patrick Lee, Robert Patalano, Maria Soto, Laura Tucker, Dale Walde |
| المصدر: | Frontiers in Earth Science, Vol 6 (2018) |
| بيانات النشر: | Frontiers Media S.A., 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | starch granule morphometry, reference collection, starch identification, ancient starch research, sub-saharan ethnobotany, unique identifiers, Science |
| الوصف: | The assumption that taxonomy can be ascertained by starch granule shape and size has persisted since the late nineteenth and early twentieth century biochemistry. More recent work has established that granule morphological affinity is scattered throughout phylogenetic branches, morphotype proportions vary within the genus, granules from closely related genera can differ dramatically in shape, and size variations do not reflect phylogenetic relationships. This situation is confounded by polymorphism at the species and tissue level, resulting in redundancy and multiplicity. This paper classifies morphological features of starch granules from 77 species, 31 families, and 22 orders across three African ecoregions. This is the largest starch reference collection published to date, rendering the dataset uniquely well-suited to explore (i) the diagnostic power of unique morphometric classifiers and their frequency, (ii) morphotypes that cut across taxonomic boundaries, and (iii) issues surrounding the minimum counts needed to accurately reflect granule polymorphism, variability, and identification. In a collection of 23,100 granules, taxonomic identification occurred very rarely. In the instances it did, it was at the species level, with no occurrences of a single morphotype or complement identifying all species within a family or genus. Some families cannot be uniquely identified, and morphometric types are shared despite taxonomic distance for three quarters of the taxa. However, this reference collection boasts 98 unique identifiers located in the Arecaceae, Convolvulaceae, Cyperaceae, Dioscoreaceae, Fabaceae, Musaceae, Pedaliaceae, Poaceae, and Zamiaceae. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2296-6463 29231221 |
| Relation: | https://www.frontiersin.org/article/10.3389/feart.2018.00146/full; https://doaj.org/toc/2296-6463 |
| DOI: | 10.3389/feart.2018.00146 |
| URL الوصول: | https://doaj.org/article/7954969b4f4e43f29231221435d2910e |
| رقم الأكسشن: | edsdoj.7954969b4f4e43f29231221435d2910e |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22966463 29231221 |
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| DOI: | 10.3389/feart.2018.00146 |