Navigation Links
The impact of the diffusion of maize to the Southwestern United States
Date:12/8/2009

ut early maize in the Southwest with genetic, paleoecological, and historical linguistic studies.

Corn from five sites in Arizona and New Mexico now predates 2,000 B.C., which makes it too early to be explained by diffusion of settled Mexican villagers, said Fritz.

"No artifacts or features of any type point to in-migrating Mesoamerican farmers; in fact, continuity of local traditions is manifested, with independent invention of low-fired ceramics and with the construction of irrigation features in the Tucson Basin dating earlier than any known south of the border," she said. "We interpret the linguistic evidence as favoring a very early (beginning shortly after 7,000 B.C.), north-to-south movement of Proto-Uto-Aztecan hunter-gatherers and subsequent division into northern and southern Uto-Aztecan-speaking groups. "

These two groups do not share words and meanings for maize because, according to the researchers' scenario, farming post-dates their separation.

"We think the Southwest stands as a region in which indigenous foragers adopted crops and made the transition to agriculture locally rather than having been joined or displaced by in-migrating farming societies," Fritz said. "Peter Bellwood may well be correct that long-distance movements account for some examples of the expansion of languages and farming technologies, but cases like that of the Southwest are very important in demonstrating that this pattern did not apply universally."


'/>"/>

Contact: Gayle Fritz
gjfritz@artsci.wustl.edu
314-935-8588
Washington University in St. Louis
Source:Eurekalert

Page: 1 2

Related biology news :

1. Tiny RNA has big impact on lung cancer tumors
2. New neuroimaging analysis technique identifies impact of Alzheimers disease gene in healthy brains
3. USC study finds big air pollution impacts on local communities
4. FSU, Duke partner to study impact of Gulfs dead zone on shrimp fishery
5. Expert to discuss phosphorus impact on Gulf dead zone
6. World interest in Australian fishery impact test
7. Media source impacts ag biotech communication
8. Small mechanical forces have big impact on embryonic stem cells
9. TGen provides Arizona with $77 million in annual economic impact
10. How the 100th protein structure solved at Diamond impacts our understanding of how insects smell
11. Studies examine how living conditions impact reproductive health
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... Researchers who studied 100 twin pairs have identified a gene ... less than six hours of sleep per night. The ... effects of sleep deprivation. , Results show that a participant ... had an average nightly sleep duration of only five hours, ... twin, who slept for about six hours and five minutes ...
(Date:7/31/2014)... from Spain, France, and the U.S. has discovered ... oldest definitive member of the tribe Omaliini that ... and description were made possible through the use ... which allows the detailed study of otherwise invisible ... described in the journal Annals of the ...
(Date:7/31/2014)... exposure to loud noise alters how the brain ... speech sounds, according to neuroscientists at The University ... published this week in Ear and Hearing ... noise-induced hearing loss affects the brain,s recognition of ... all corners of the population, affecting an estimated ...
Breaking Biology News(10 mins):Study of twins discovers gene mutation linked to short sleep duration 2UT Dallas study reveals effect of loud noises on brain 2
... URBANA - When University of Illinois researchers surveyed over 3,500 ... accurately, and overweight and obese men were more likely to ... because the first step in dealing with a weight problem ... U of I professor of food science and human nutrition. ...
... N.Y. Most medical imaging equipment is not designed with ... individuals can be exposed to higher levels of radiation during ... from Rensselaer Polytechnic Institute is the first to calculate exactly ... scan. Research results show the internal organs of obese men ...
... E. Prada, MD of Cincinnati Children,s Hospital and James ... NY were honored as the 2012-2013 recipients of the ... Genetics at the ACMG 2012 Annual Clinical Genetics Meeting ... Genzyme/ACMG Foundation Awards is to support a national training ...
Cached Biology News:Misperception of weight is an important barrier to weight loss 2Obese patients face higher radiation exposure from CT scans -- but new technology can help 2Genzyme/ACMG Foundation Genetics Training Award in Clinical Biochemical Genetics announced 2
(Date:7/31/2014)... 2014  Smith & Nephew (LSE:SN, NYSE: ... today announced its entry into the forefoot market ... Repair System. Comprised of three separate repair options, ... ligament repair and reconstruction, a metatarsal osteotomy guide, ... (PIP) fusion, also known as hammer toe correction. ...
(Date:7/31/2014)... 31, 2014 Although RNA-Sequencing is ... first transcriptome-wide analyses appearing around 2008, RNA-Sequencing has ... RNA measurement. In the last several years, assays ... work with smaller input amounts, process degraded RNA, ... samples). On the bioinformatics side, there have been ...
(Date:7/31/2014)... Boston’s Adult Stem Cell Technology Center, ... adult stem cell biotechnologies. Currently the company holds ... additional patent applications currently under examination by the U.S. ... two of the most vexing problems in adult stem ... cells are difficult to identify; and they have been ...
(Date:7/30/2014)... July 30, 2014  Decision Resources Group finds ... directors in the United States ... market penetration will be the level of savings ... the expected lower cost to patients. Payers plan ... meet their pricing expectations in order to encourage ...
Breaking Biology Technology:Smith & Nephew scores a HAT-TRICK with its entry into the high-growth hammer toe repair market 2Smith & Nephew scores a HAT-TRICK with its entry into the high-growth hammer toe repair market 3Smith & Nephew scores a HAT-TRICK with its entry into the high-growth hammer toe repair market 4The Evolution of RNA-Sequencing, Upcoming Live Webinar August 22 hosted by Xtalks 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 3
... YORK, Aug. 18 Regenicin, Inc. (OTC Bulletin Board: ... announced today that it has completed an initial $3.25 ... worldwide exclusive license to know-how technology controlled by Lonza ... Lonza Group Ltd. (SIX: LONN), one of the world,s ...
... 17 SeqWright Inc., a world-wide leader in custom ... has acquired the Illumina HiSeq 2000 Next Generation Sequencing ... to perform the largest and most complex sequencing studies ... ability to process increased numbers of samples and to ...
... SAN DIEGO, Aug. 17 Imagenetix, Inc. (OTC Bulletin Board: ... June 30, 2010. Net sales decreased 36% for the first quarter ... period of last year.   Net loss for the first quarter ... $415,000 or $.04 per share for the same period of the ...
Cached Biology Technology:Regenicin Completes Acquisition of Worldwide Exclusive Know-How Technology License from Lonza Walkersville 2SeqWright Announces the Addition of Illumina HiSeq 2000 to its Next Generation Sequencing Capabilities 2Imagenetix, Inc. Reports First Quarter 2011 Results 2Imagenetix, Inc. Reports First Quarter 2011 Results 3
Human SEAP ORF, provided in a pORF plasmid. pORF is an expression plasmid selectable with Ampicillin....
... 2800mL PYREX Fernbach-style culture flasks have triple ... flask bottom to achieve maximal oxygen transfer ... large marking spot., A wide range of ... including:, Polypropylene colored caps for ease ...
... 400g of purified RNA samples., , This ... of aqueous RNA samples that have been ... phenol/chloroform, silica, oligo dT etc or other ... the necessary components for the stabilization of ...
...
Biology Products: