The origin and evolution of maize in the American Southwest
Rute R. da Fonseca,
Bruce D Smith,
José Alfredo Samaniego,
María C. Ávila-Arcos,
David E Hufnagel,
Thorfinn Sand Korneliussen,
Filipe Garrett Vieira,
Matthew B. Hufford,
M. Thomas P. Gilbert
Posted 11 Jan 2015
bioRxiv DOI: 10.1101/013540 (published DOI: 10.1038/nplants.2015.7)
Posted 11 Jan 2015
Maize offers an ideal system through which to demonstrate the potential of ancient population genomic techniques for reconstructing the evolution and spread of domesticates. The diffusion of maize from Mexico into the North American Southwest (SW) remains contentious with the available evidence being restricted to morphological studies of ancient maize plant material. We captured 1 Mb of nuclear DNA from 32 archaeological maize samples spanning 6000 years and compared them with modern landraces including those from the Mexican West coast and highlands. We found that the initial diffusion of domesticated maize into the SW is likely to have occurred through a highland route. However, by 2000 years ago a Pacific coastal corridor was also being used. Furthermore, we could distinguish between genes that were selected for early during domestication (such as zagl1 involved in shattering) from genes that changed in the SW context (e.g. related to sugar content and adaptation to drought) likely as a response to the local arid environment and new cultural uses of maize.
- Downloaded 1,047 times
- Download rankings, all-time:
- Site-wide: 9,819 out of 83,702
- In evolutionary biology: 553 out of 5,200
- Year to date:
- Site-wide: 68,569 out of 83,702
- Since beginning of last month:
- Site-wide: 70,563 out of 83,702
Downloads over time
Distribution of downloads per paper, site-wide
- 18 Dec 2019: We're pleased to announce PanLingua, a new tool that enables you to search for machine-translated bioRxiv preprints using more than 100 different languages.
- 21 May 2019: PLOS Biology has published a community page about Rxivist.org and its design.
- 10 May 2019: The paper analyzing the Rxivist dataset has been published at eLife.
- 1 Mar 2019: We now have summary statistics about bioRxiv downloads and submissions.
- 8 Feb 2019: Data from Altmetric is now available on the Rxivist details page for every preprint. Look for the "donut" under the download metrics.
- 30 Jan 2019: preLights has featured the Rxivist preprint and written about our findings.
- 22 Jan 2019: Nature just published an article about Rxivist and our data.
- 13 Jan 2019: The Rxivist preprint is live!