caa a22 4500 467895309 CHVBK 20180406152801.0 cr unu---uuuuu 170328e20060901xx s 000 0 eng 10.1007/s11103-006-9018-x doi (NATIONALLICENCE)springer-10.1007/s11103-006-9018-x Identification of a Drought Tolerant Introgression Line Derived from Dongxiang Common Wild Rice ( O. rufipogon Griff.) [Elektronische Daten] [Xia Zhang, Shaoxia Zhou, Yongcai Fu, Zhen Su, Xiangkun Wang, Chuanqing Sun] Construction of introgression lines using cultivated rice as recipient and wild rice is a novel approach to explore primitive and broad genetic resources in rice breeding. We recently generated a set of 159 introgression lines via a backcrossing program using an elite Indica cultivar rice Guichao 2 (O. sativa L. ssp. indica) as recipient and a common wild rice Dongxiang accession (O. rufipogon Griff.) as donor. In this study, we have evaluated the previously constructed 159 introgression lines for drought-tolerance. A total of 12 quantitative trait loci (QTLs) related to drought tolerance were mapped. Furthermore, a drought tolerant introgression line, IL23, was identified and characterized. Genotype analysis of IL23 demonstrated that IL23 contained two QTLs associated with drought tolerance, qSDT2-1 and qSDT12-2, which were located on chromosome 2 and 12 within the two introgressed segments derived from the common wild rice, respectively. Physiological characterization, including measurement of water loss, osmotic potential, electrolytical leakage, MDA content, soluble sugars content and the leaf temperature, revealed that IL23 showed the characteristics associated with drought tolerance. Identification and characterization of IL23 would provide a useful basis for isolation of novel genes associated with drought tolerance and for molecular breeding of drought tolerant rice. Furthermore, the results in this study indicated that construction of introgression lines from common wild rice should be an appropriate approach to obtain favorable genetic materials. Springer Science+Business Media B.V., 2006 Common wild rice ( O. rufipogon Griff.) nationallicence QTL nationallicence Introgression lines nationallicence Polyethylene glycol (PEG) nationallicence Drought tolerance nationallicence Zhang Xia Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut Zhou Shaoxia Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut Fu Yongcai Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut Su Zhen State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, 100094, Beijing, China aut Wang Xiangkun Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut Sun Chuanqing Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut Plant Molecular Biology Kluwer Academic Publishers 62/1-2(2006-09-01), 247-259 0167-4412 62:1-2<247 2006 62 11103 https://doi.org/10.1007/s11103-006-9018-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11103-006-9018-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Xia Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 700 1- Zhou Shaoxia Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 700 1- Fu Yongcai Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 700 1- Su Zhen State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 700 1- Wang Xiangkun Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 700 1- Sun Chuanqing Department of Plant Genetic and Breeding and State Key Laboratory of Agrobiotechnology, China Agricultural University, 100094, Beijing, China aut NATIONALLICENCE 773 0- Plant Molecular Biology Kluwer Academic Publishers 62/1-2(2006-09-01), 247-259 0167-4412 62:1-2<247 2006 62 11103 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer