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Abstract Detail

Darwins' reversals: What we now know about Feralization and Crop Wild Relatives

Frawley, Emma [1], Olsen, Kenneth [2], Mueller, Natalie [3].

Little Barley: Variation and Domestication in a North American Lost Crop.

Little barley (Hordeum pusillum Nutt.) is a North American “lost crop”– a plant that was once a critical food source for Native Americans, but today exists only in its wild, weedy form. While there is archaeological preservation of domesticated seed morphologies in the species, a lack of oral or written records about its use leave many questions about little barley cultivation unanswered. The current research serves as a foundation to understanding how little barley grows in a controlled setting and what basic inferences can be made about its population structure. The results of multiple germination treatments and their effect on growth, reproductive output, and seed morphology are presented. In addition, genotyping-by-sequencing data for a subset of populations offer insight into population structure and genetic diversity across the United States, the first results of their kind in the species. This information reveals genetic and phenotypic differentiation between populations from the Midwest and Southwest, two of the contrasting regions where little barley was once cultivated. This research provides the grounds for expanded field collections from which future experiments can be conducted.

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1 - Washington University In St. Louis, Biology, 1 Brookings Drive, McDonnell Hall, St. Louis, MO, 63130, United States
2 - Washington University, Biology Dept., Campus Box 1137, 1 Brookings Drive, St. Louis, MO, 63130, United States
3 - Washington University in St. Louis, Anthropology, McMillan Hall, 1 Brookings Drive, St. Louis, MO, 63130, USA

Lost crop

Presentation Type: Colloquium Presentations
Session: C03, Darwins' reversals: What we now know about Feralization and Crop Wild Relatives
Location: /
Date: Tuesday, July 20th, 2021
Time: 10:45 AM(EDT)
Number: C03004
Abstract ID:472
Candidate for Awards:Economic Botany Section best student paper

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