Evolution and Adaptation of Wild Emmer Wheat Populations to Biotic and Abiotic Stresses

Lin Huang, Dina Raats, Hanan Sela, Valentina Klymiuk, Gabriel Lidzbarsky, Lihua Feng, Tamar Krugman, Tzion Fahima

Research output: Contribution to journalArticlepeer-review

Abstract

The genetic bottlenecks associated with plant domestication and subsequent selection in man-made agroecosystems have limited the genetic diversity of modern crops and increased their vulnerability to environmental stresses. Wild emmer wheat, the tetraploid progenitor of domesticated wheat, distributed along a wide range of ecogeographical conditions in the Fertile Crescent, has valuable "left behind" adaptive diversity to multiple diseases and environmental stresses. The biotic and abiotic stress responses are conferred by series of genes and quantitative trait loci (QTLs) that control complex resistance pathways. The study of genetic diversity, genomic organization, expression profiles, protein structure and function of biotic and abiotic stress-resistance genes, and QTLs could shed light on the evolutionary history and adaptation mechanisms of wild emmer populations for their natural habitats. The continuous evolution and adaptation of wild emmer to the changing environment provide novel solutions that can contribute to safeguarding food for the rapidly growing human population.

Original languageEnglish
Pages (from-to)279-301
Number of pages23
JournalAnnual Review of Phytopathology
Volume54
DOIs
StatePublished - 4 Aug 2016

Bibliographical note

Funding Information:
We apologize in advance to all scientists whose research could not be cited because of space limitations. This work was supported by grants from the European Union through the BioExploit project (CT-2005-513949), the United States-Israel Binational Agricultural Research and Development Fund (BARD) (Grant number IS-4628-13), and the Israel Science Foundation Grant #205/08. Dina Raats is grateful for the Eshkol Fellowship awarded by the Israeli Ministry of Science. The authors would like to thank our colleagues A. Korol, Z. Frenkel, A. Schulman, Y. Saranga, S. Abbo, J. Dubcovsky, K. Krasileva, E. Lagudah, B. Keller, A. Fait, H. Buerstmayr, H. Budak, J. Doležel, Z.Y. Liu, A. Grama, A. Dinoor, A. Manisterski, A. Levy, Z. Peleg, A. Distelfeld, R. Ben-David, E. Yaniv, V. Bocharova, A. Fatiukha, Z.Z. Wei, J. Yan, and T. Kis-Papo for their critical comments and endless discussions over the years, which helped to improve this review chapter.

Publisher Copyright:
© 2016 by Annual Reviews. All rights reserved.

Keywords

  • Environmental tolerances
  • Genetic resources
  • Genomics tools
  • Wheat progenitor

ASJC Scopus subject areas

  • Plant Science

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