Evolutionary origins of taro (Colocasia esculenta) in Southeast Asia
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Date
2020-12
Open Access Location
Journal Title
Journal ISSN
Volume Title
Publisher
John Wiley and Sons Ltd
Rights
(c) 2020 The Author/s
CC BY 4.0
CC BY 4.0
Abstract
As an ancient clonal root and leaf crop, taro (Colocasia esculenta, Araceae) is highly polymorphic with uncertain genetic and geographic origins. We explored chloroplast DNA diversity in cultivated and wild taros, and closely related wild taxa, and found cultivated taro to be polyphyletic, with tropical and temperate clades that appear to originate in Southeast Asia sensu lato. A third clade was found exclusively in wild populations from Southeast Asia to Australia and Papua New Guinea. Our findings do not support the hypothesis of taro domestication in Papua New Guinea, despite archaeological evidence for early use or cultivation there, and the presence of apparently natural wild populations in the region (Australia and Papua New Guinea).
Description
Keywords
Araceae, chloroplast DNA, cultivated, domestication, evolution, wild
Citation
Ahmed I, Lockhart PJ, Agoo EMG, Naing KW, Nguyen DV, Medhi DK, Matthews PJ. (2020). Evolutionary origins of taro (Colocasia esculenta) in Southeast Asia.. Ecol Evol. 10. 23. (pp. 13530-13543).