Genetic evidence for a second domestication of barley (Hordeum vulgare) east of the Fertile Crescent

Peter L. Morrell, Michael T. Clegg

Research output: Contribution to journalArticlepeer-review

235 Scopus citations

Abstract

Cereal agriculture originated with the domestication of barley and early forms of wheat in the Fertile Crescent. There has long been speculation that barley was domesticated more than once. We use differences in haplotype frequency among geographic regions at multiple loci to infer at least two domestications of barley; one within the Fertile Crescent and a second 1,500-3,000 km farther east. The Fertile Crescent domestication contributed the majority of diversity in European and American cultivars, whereas the second domestication contributed most of the diversity in barley from Central Asia to the Far East.

Original languageEnglish (US)
Pages (from-to)3289-3294
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume104
Issue number9
DOIs
StatePublished - Feb 27 2007

Keywords

  • Archaeology
  • Neolithic agriculture
  • Nucleotide polymorphism
  • Population structure
  • Resequencing

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