Drought adaptations in wild barley (Hordeum spontaneum) grown in Iran

Authors

Department of Genetics and National Plant Gene Bank of Iran, Seed and Plant Improvement Institute, P. O. Box: 31359-33151, Karaj, Alborz, Islamic Republic of Iran, Approved Project Numbaer: 2-03-03-90145.

Abstract

Wild barley contains a wide genetic diversity and therefore is adaptable to all kinds of harsh environments. The aim of this research was to determine the extent of drought stress adaptation within Hordeum spontaneum L. genotypes from different climates of Iran. From the primary population of 193 genotypes, a core set consisting of 18 genotypes, were selected based on the highest squared Euclidean distance to represent the genetic diversity among wild barley genotypes. The selected genotypes were evaluated for drought stress adaptation. At the beginning of flowering time, two different water treatments; well-watered (90-100% field capacity) and drought stress (20-30% field capacity) were imposed to the plants. A negative correlation of stress tolerance index with phenological traits and relative water loss was observed. Genotypes with the highest relative water loss under drought stress condition were mainly from Mediterranean and Cool steppe climates and genotypes from desert climates seemed to have better adaptability to drought stress shown by less relative water loss. It seems that genotypes from unpredictable climatic conditions are more adapted to harsh environments.

Keywords


Bakhteyev F. Kh., and Darevskay E. M. (2003). Samples of Hordeum spontaneum C. Koch emend. Becht from Iran, Iraq and Turkey. Barley Genetics Newsletter, 9: 12-13.

Baum B. R., Nevo E., Johnson D. A., and Beiles A. (1997). Genetic diversity in wild barley (Hordeum spontaneum C. Koch) in the Near East: a molecular analysis using random amplified polymorphic DNA (RAPD) markers. Genetic Resources and Crop Evolution, 44: 147–157.

Brown A. H. D. (1992). Genetic Variation and Resources in Cultivated Barley and Wild Hordeum. Proceedings of the Sixth International Barley Genetics Symposium, 1991; Helsingborg Sweden, pp. 669–682.

Ceccarelli S., Grando S., and Van Leur J. A. G. (1995). Barley landraces in the Fertile Crescent offer new breeding options for stress environments. Diversity, 11: 112–113.

Chen G., Krugman T., Fahima T., Chen K., Hu Y., Roder M., Nevo E., and Korol A. (2010). Chromosomal regions controlling seedling drought resistance in Israeli wild barley, Hordeum spontaneum C. Koch. Genetic Resources and Crop Evolution, 57: 85–99.

Chaves M. M., and Oliveira M. M. (2004). Mechanisms underlying plant resilience to water deficits: prospects for water saving agriculture. Journal of Experimental Botany, 55: 2365–2384.

Eglinton J. K., Evans D. E., Brown A. H. D., Langridge P., McDonald G., Jefferies S. P. and Barr A. R. (1999). The use of wild barley (Hordeum vulgare ssp spontaneum) in breeding for quality and adaptation. Proceedings of the Ninth Australian Barley Technical Symposium, 29: 1–6.

Ellis R. P., Forster B. P., Robinson D., Handley L. L., Gordon D. C., Russell J. R., and Powell W. (2000). Wild barley: a source of genes for crop improvement in the 21st century? Journal of Experimental Botany, 51: 9–17.

Farshadfar E., Afarinesh A., and Sutka J. (2002). Inheritance of drought tolerance in maze. Cereal Research Communications, 30: 3–4.

Fernandez G. C. J. (1992). Effective Selection Criteria for Assessing Plant Stress Tolerance. In: Kuo CG, editors.  Adaptation of food to temperature and water stress. AVRDC, Shanhua, Taiwan, pp. 257-270.

Gavuzzi P., Rizza F., Palumbo M., Campanile R. G., Ricciardi G. L., and Borghi B. (1997). Evaluation of field and laboratory predictors of drought and heat tolerance in winter cereals. Canadian Journal of Plant Science, 77: 523-531. Harlan J. R., and Zohary D. (1966). Distribution of wild wheat and barley. Science, 153: 1074–1080.

Hodgkin T. (1997). Some current issues in conservation of plant genetic resources. In: Ayad W. G., Hodgkin T., Jaradat A., and Rao V.R., editors. Molecular genetic techniques for plant genetic resources. Report of an IPGRI workshop 9–11 October 1995, Rome, Italy, pp. 3–10.

Ivandic V. C., Hackett A., Zhang Z. J., Staub J. E., Nevo E.,      Thomas W. T. B., and Forster B. P. (2000). Phenotypic responses of wild Barley to experimentally imposed to water stress. Journal of Experimental Botany, Vol, 51, No, 353, pp: 2021-2029.

Lonbani M., and Arzani A. (2011). Morpho-physiological traits associated with terminal drought-stress tolerance in triticale and wheat. Agronomy Research, 9: 315–329.

Maestri E., Malcevschi A., Massari A., and Marmiroli N. (2002). Genomic analysis of cultivated barley (Hordeum vulgare) using sequence-tagged molecular markers. Estimates of divergence based on RFLP and PCR markers derived from stress responsive genes, and simple-sequence repeats (SSRs). Molecular Genetics and  Genomics, 267: 186–201.

Mead R., Curnow R.N., and Hasted A. M. (2002). Statistical methods in agriculture and experimental biology, 3rd edn. Chapman and Hall/CRC, pp. 406–418.

Nevo E. (1992). Origin, evolution, population genetics and resources for breeding of wild barley, Hordeum spontaneum, in the Fertile Crescent. In: Shewry P, editors. Barley: Genetics, Molecular Biology and Biotechnology. C.A.B. International, pp. 19-43.

Nevo  E. (1998). Genetic diversity in wild cereals: regional and local studies and their bearing on conservation ex situ and in situ. Genetic Resources and Crop Evolution, 45: 355–370.

Nevo  E. (2004). Population genetic structure of wild barley and wheat in the Near East Fertile Crescent: Regional and local adaptive. In Gupta P K, Varshney RK, editors. Cereal genomics. Dordrecht: Kluwer Academic, pp. 135–163.

Robinson D., Handley L. L., Scrimgeour C. M., Gordon D. C., Forster B. P. and Ellis R. P. (2000). Using stable isotope natural abundances to integrate the stress responses of wild barley (Hourdeum spontaneum C. Koch.) genotypes. Journal of Experimental Botany, 51: 41–50.

Samarah N. H. (2005). Effects of drought stress on growth and yield of Barley. Agronomy for Sustainable Development, 25: 145-149.

Shahmoradi Sh., Chaichi M. R., MozafariJ., Mazaheri D., and Sharif Zadeh F. (2013). Evaluation of genetic and geographic diversity of wild barley)Hordeum spontaneum L ( genotypes from different habitats in Iran. Iranian Journal of Field Crop Science, 44: 209-225 (in Persian).

Suprunova T., Krugman T., Fahima T., Chen G., Shams I., Korol A.B., and Nevo E. (2004). Differential expression of dehydrin (Dhn) in response to water stress in resistant and sensitive wild barley (Hordeum spontaneum). Plant, Cell and Environment, 27: 297–308.

Turner N.C. (1986). Crop water deficits: A decade of progress. Advances in Agronomy, 39: 1-51.

Volis S., Mendlinger A., Turuspekov Y. andEsnazarov U. (2002). Phenotypic and allozyme variation in Mediterranean and desert populations of wild barley, Hordeum spontaneum koch. Evolution, 56: 1403–1415.

Zadoks J. C., Chang T.T., Konzak C. F. (1974). A decimal code for the growth stages of cereals. Weed Research, 14: 415-421.

Zhao J., Sun Dai H., Zhang G., Wu F. (2010). Difference in response to drought stress among Tibet wild barley genotypes. Euphytica, 172: 395–403.