naa a22 4500 51078805X CHVBK 20180411083309.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s12041-013-0253-z doi (NATIONALLICENCE)springer-10.1007/s12041-013-0253-z Conditional and unconditional QTL mapping of drought-tolerance-related traits of wheat seedling using two related RIL populations [Elektronische Daten] [HONG ZHANG, FA CUI, LIN WANG, JUN LI, ANMING DING, CHUNHUA ZHAO, YINGUANG BAO, QIUPING YANG, HONGGANG WANG] For discovering the quantitative trait loci (QTLs) contributing to early seedling growth and drought tolerance during germination, conditional and unconditional analyses of 12 traits of wheat seedlings: coleoptile length, seedling height, longest root length, root number, seedling fresh weight, stem and leaves fresh weight, root fresh weight, seedling dry weight, stem and leaves dry weight, root dry weight, root to shoot fresh weight ratio, root-to-shoot dry weight ratio, were conducted under two water conditions using two F8:9 recombinant inbred line (RIL) populations. The results of unconditional analysis are as follows: 88 QTLs accounting for 3.33-77.01% of the phenotypic variations were detected on chromosomes 1A, 1B, 1D, 2A, 2B, 2D, 3A, 3B, 4A, 4B, 4D, 5A, 5B, 5D, 6A, 6B, 6D, 7A, 7B and 7D. Among these QTLs, 19 were main-effect QTLs with a contribution rate greater than 10%. The results of the conditional QTL analysis of 12 traits under osmotic stress on normal water conditions were as follows: altogether 22 QTLs concerned with drought tolerance were detected on chromosomes 1B, 2A, 2B, 3B, 4A, 5D, 6A, 6D, 7B, and 7D. Of these QTLs, six were main-effect QTLs. These 22 QTLs were all special loci directly concerned with drought tolerance and most of them could not be detected by unconditional analysis. The finding of these QTLs has an important significance for fine-mapping technique, map-based cloning, and molecular marker-assisted selection of early seedling traits, such as growth and drought tolerance. Indian Academy of Sciences, 2013 drought tolerance of wheat seedling nationallicence unconditional QTL nationallicence conditional QTL nationallicence ZHANG HONG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut CUI FA State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut WANG LIN Municipal Academy of Agricultural Sciences, Jining, 272031, Shandong, People's Republic of China aut LI JUN State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut DING ANMING State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut ZHAO CHUNHUA State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut BAO YINGUANG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut YANG QIUPING State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut WANG HONGGANG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut Journal of Genetics Springer India 92/2(2013-08-01), 213-231 0022-1333 92:2<213 2013 92 12041 https://doi.org/10.1007/s12041-013-0253-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12041-013-0253-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- ZHANG HONG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- CUI FA State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- WANG LIN Municipal Academy of Agricultural Sciences, Jining, 272031, Shandong, People's Republic of China aut NATIONALLICENCE 700 1- LI JUN State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- DING ANMING State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- ZHAO CHUNHUA State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- BAO YINGUANG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- YANG QIUPING State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 700 1- WANG HONGGANG State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, College of Agronomy, Shandong Agricultural University, 271018, Taian, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Genetics Springer India 92/2(2013-08-01), 213-231 0022-1333 92:2<213 2013 92 12041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 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