Genetic analysis of salt tolerance in a recombinant inbred population of wheat (Triticum aestivum L.)
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A population of 114 recombinant inbred lines (RILs), derived from the cross Opata85 × W7984, was used to genetically analyze the response of wheat to salt stress. This analysis resulted in the identification of 47 QTL mapping to all wheat chromosomes except 1B, 1D, 4B, 5D and 7D. Of these QTL, 10 were effective during the germination stage, and 37 at the seedling stage. Many of the traits related to salt tolerance mapped to common chromosome intervals, such as Xglk683–Xcdo460 on chromosome 3A, Xfbb168–Xbcd147 on chromosome 3B, Xcdo1081–Xfbb226 on chromosome 4DL and Xpsr106–Xfbb283 on chromosome 6DL. QTL located in the interval Xcdo1081–Xfbb226 (chromosome 4DL) were effective during the germination stage, whereas those in the interval Xfbb231.1–Xmwg916 (chromosome 6DL) were relevant to the seedling stage. The QTL in the intervals Xglk683–Xcdo460 (chromosome 3AS) and Xfbb168–Xbcd147 (chromosome 3BL) were effective at both the germination and seedling stages.
KeywordsQTL Salt tolerance Common wheat RIL
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This work was supported by National Project 973 (2004CB 117200).
- Dvorak J, Noaman MM, Gorham G (1994) Enhancement of the salt tolerance of Triticum turgiduml L. by the Knal locus transferred from the Triticum aestivum L. chromosome 4D by homologous recombination. Theor Appl Genet 87:872–877Google Scholar
- Gong JM, He P, Qian Q, Chen LS, Zhu LH, Chen SY (1998) Mapping QTLs related salt tolerance in rice. Sci Bull 43:1847–1850Google Scholar
- Gu XY, Mei MT, Yan XL (2000) Preliminary detection of quantitative trait loci for salt tolerance in rice. Chinese J Rice Sci 14:65–70Google Scholar
- Levitt J (1980) Responses of plants to environmental stresses, vol II. Academic Press, LondonGoogle Scholar
- Lin HX,Yanagihara S, Zhuang JY, Senboku T, Zheng K, Yashima S (1998) Identification of QTL for salt tolerance in rice via molecular markers. Chinese J Rice Sci 12:72–78Google Scholar
- Liu X, Shi J, Zhang XY (2001) Screening salt tolerance germplasms and tagging the tolerance gene(s) using microsatellite (SSR) markers in wheat. Acta Bot Sin 48:948–954Google Scholar
- Quarrie SA, Steed A, Calestani C, Semikhodskii A, Lebreton C, Chinoy C, Steele N, Pljevljakusic D, Waterman E, Weyen J, Schondelmaier J, Habash DZ, Farmer P, Saker L, Clarkson DT, Abugalieva A, Yessinbekova M, Turuspekov Y, Abugalieva S, Tuberosa R, Sanguineti M-C, Hollington PA, Aragues R, Royo A, Dodig D (2005) A high-density genetic map of hexaploid wheat (Triticum aestivum L.) from the cross Chinese Spring X SQ1 and its use to compare QTLs for grain yield across a range of environments. Theor Appl Genet 110:965–990CrossRefGoogle Scholar
- Serrano R, Glaxiola R (1994) Microbial models and salt stress tolerance in plants. Crit Rev Plant Sci 13:121–138Google Scholar
- Shan SH, Gorham J, Forster BP, Wyn Jones RG (1987) Salt tolerance in the Triticeae: the contribution of the D genome to cation selectivity in hexaploid wheat. J Exp Bot 38:254–269Google Scholar
- Veldbloom L, Lee RM, Woodman WL (1994) Molecular marker facilitated studies in an elite maize population: linkage analysis and determination of QTL for morphological traits. Theor Appl Genet 88:7–16Google Scholar
- Wyn Jones RG, Gorham J, McDonnell E (1984) Organic and inorganic solute contents as selection criteria for salt tolerance in the Triticeae. In: Staples RC, Toenniessen GH (eds) Salinity tolerance in plants: strategies of crop improvement. Wiley, New York, pp 189–203Google Scholar
- Yokoi S, Bressan RB, Hasegawa PM (2002) Salt stress tolerance of plants In: Iwanaga M (ed) Genetic engineering of crop plants for abiotic stress pp 25–33. (JIRCAS Working Report No. 23)Google Scholar