help button home button Genetics AJP: Lung
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Originally published as Genetics Published Articles Ahead of Print on October 18, 2007.

Genetics, Vol. 177, 1765-1776, November 2007, Copyright © 2007
doi:10.1534/genetics.107.079491

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Data Supplement
Right arrow All Versions of this Article:
genetics.107.079491v1
177/3/1765    most recent
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Saisho, D.
Right arrow Articles by Purugganan, M. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Saisho, D.
Right arrow Articles by Purugganan, M. D.

Molecular Phylogeography of Domesticated Barley Traces Expansion of Agriculture in the Old World

Daisuke Saisho*,{dagger} and Michael D. Purugganan*,1

* Center for Genomics and Systems Biology and Department of Biology, New York University, New York, New York 10003 and {dagger} Research Institute for Bioresources, Okayama University, Kurashiki, 710-0046 Japan

1 Corresponding author: Center for Genomics and Systems Biology and Department of Biology, 1009 Silver, 100 Washington Square E., New York University, New York, NY 10003.
E-mail: mp132{at}nyu.edu

Barley (Hordeum vulgare ssp. vulgare) was first cultivated 10,500 years ago in the Fertile Crescent and is one of the founder crops of Eurasian agriculture. Phylogeographic analysis of five nuclear loci and morphological assessment of two traits in >250 domesticated barley accessions reveal that landraces found in South and East Asia are genetically distinct from those in Europe and North Africa. A Bayesian population structure assessment method indicates that barley accessions are subdivided into six clusters and that barley landraces from 10 different geographical regions of Eurasia and North Africa show distinct patterns of distribution across these clusters. Using haplotype frequency data, it appears that the Europe/North Africa landraces are most similar to the Near East population (FST = 0.15) as well as to wild barley (FST = 0.11) and are strongly differentiated from all other Asian populations (FST = 0.34–0.74). A neighbor-joining analysis using these FST estimates also supports a division between European, North African, and Near East barley types from more easterly Asian accessions. There is also differentiation in the presence of a naked caryopsis and spikelet row number between eastern and western barley accessions. The data support the differential migration of barley from two domestication events that led to the origin of barley—one in the Fertile Crescent and another farther east, possibly at the eastern edge of the Iranian Plateau—with European and North African barley largely originating from the former and much of Asian barley arising from the latter. This suggests that cultural diffusion or independent innovation is responsible for the expansion of agriculture to areas of South and East Asia during the Neolithic revolution.




This article has been cited by other articles:


Home page
 Proc. Natl. Acad. Sci. USAHome page
S. Taketa, S. Amano, Y. Tsujino, T. Sato, D. Saisho, K. Kakeda, M. Nomura, T. Suzuki, T. Matsumoto, K. Sato, et al.
Barley grain with adhering hulls is controlled by an ERF family transcription factor gene regulating a lipid biosynthesis pathway
PNAS, March 11, 2008; 105(10): 4062 - 4067.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2007 by the Genetics Society of America.