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Abstract Detail



Economic Botany Section

Walsh, Brian [1], Emshwiller, Eve [2].

Using Molecular Markers to Trace the Domestication History of the Extinct Chenopodium Cultigen of the Middle-Mississippi River Watershed.

In this study, sequence data from 1200 to 3400 year old domesticated Chenopodium seeds are compared to sequences from extant domesticated cultigens. Researchers have debated for decades whether Chenopodium cultigens were independently domesticated or introduced from neighboring regions. The most intensely debated relationship is among the extant Mesoamerican C. berlandieri subsp. nuttalliae cultigen and the extinct C. berlandieri subsp. jonesianum cultigen, known from numerous archaeological sites across the Middle-Mississippi river watershed. Three hypotheses have been pro­posed: 1) the two domesticates were independently domesticated (Smith 1984), 2) a single do­mestication event originated in Mesoamerica and the cultigen was introduced to the Mississippi river watershed (Wilson 1981), and 3) a single domestication originating in the Mississippi river water shed followed by an introduction to Mesoamerica (Heiser 1990). The results generated are contrary to those published in a similar study (Kistler and Shapiro 2011).

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1 - 4313 Wakefield St., Madison, WI, 53711, USA
2 - University of Wisconsin-Madison, Botany Dept, 321 Birge Hall, 430 Lincoln Drive, Madison, WI, 53706, USA

Keywords:
Chenopodium
archaeology
jonesianum
nuttalliae
Domestication
aDNA
ancient
Chenopodiaceae
Amaranthaceae
remains
origin.

Presentation Type: Oral Paper:Papers for Sections
Session: 1
Location: Napoleon Ballroom/Riverside Hilton
Date: Monday, July 29th, 2013
Time: 10:00 AM
Number: 1008
Abstract ID:267
Candidate for Awards:Economic Botany Section best student paper


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