Chromosomal regions controlling seedling drought resistance in Israeli wild barley, Hordeum spontaneum C. Koch

被引:41
作者
Chen, Guoxiong [1 ,2 ]
Krugman, Tamar [2 ]
Fahima, Tzion [2 ]
Chen, Kegui [2 ]
Hu, Yingang [2 ]
Roeder, Marion [3 ]
Nevo, Eviatar [2 ]
Korol, Abraham [2 ]
机构
[1] Chinese Acad Sci, Extreme Stress Resistance & Biotechnol Lab, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
[2] Univ Haifa, Inst Evolut, IL-31905 Haifa, Israel
[3] Inst Plant Genet & Crop Plant Res IPK, D-06466 Gatersleben, Germany
关键词
Drought resistance; Genetic map; Hordeum spontaneum; QTL mapping; Wild barley; QUANTITATIVE TRAIT LOCI; ROOT-PENETRATION ABILITY; RELATIVE WATER-CONTENT; ORYZA-SATIVA L; OSMOTIC ADJUSTMENT; ABIOTIC STRESS; GENETIC DISSECTION; EVOLUTION CANYON; TROPICAL MAIZE; EMMER WHEAT;
D O I
10.1007/s10722-009-9453-z
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The objective of the present study was to map quantitative trait loci (QTL) controlling drought-resistance traits at seedling stage of Israeli wild barley (Hordeum spontaneum). Mapping was conducted using an F-4 mapping population derived from a cross between genotype WQ23-38 from xeric (Wadi Qilt, 144 mm annual rainfall) and MA10-30 from mesic (Maalot, 790 mm annual rainfall) environments. Obvious segregation was observed for traits including time to wilt, leaf relative elongation rate, recovery rate, shoot regrowth, osmolarity, relative water content, leaf length, and root length with the coefficient of variation ranging from 10 to 77%. Eighteen putative QTL effects were identified (at false discovery rate = 10%) by single-trait analyses and confirmed by multi-trait analysis and multiple interval mapping using a new MultiQTL package. The results of our study suggest that the xeric genotypes adopted survival strategies while the mesic genotypes adopted growth-sustain strategies to cope with drought stress.
引用
收藏
页码:85 / 99
页数:15
相关论文
共 99 条
[1]  
Acevedo E., 1987, Drought tolerance in winter cereals. Proceedings of an international workshop, 27-31 October 1985, Capri, Italy, P303
[2]   Ecological-genomic diversity of microsatellites in wild barley, Hordeum spontaneum, populations in Jordan [J].
Baek, HJ ;
Beharav, A ;
Nevo, E .
THEORETICAL AND APPLIED GENETICS, 2003, 106 (03) :397-410
[3]   Transgenic approaches to increase dehydration-stress tolerance in plants [J].
Bajaj, S ;
Targolli, J ;
Liu, LF ;
Ho, THD ;
Wu, R .
MOLECULAR BREEDING, 1999, 5 (06) :493-503
[4]   A RE-EXAMINATION OF RELATIVE TURGIDITY TECHNIQUE FOR ESTIMATING WATER DEFICITS IN LEAVES [J].
BARRS, HD ;
WEATHERLEY, PE .
AUSTRALIAN JOURNAL OF BIOLOGICAL SCIENCES, 1962, 15 (03) :413-&
[5]   QTLs for agronomic traits in the Mediterranean environment identified in recombinant inbred lines of the cross 'Arta' x H-spontaneum 41-1 [J].
Baum, M ;
Grando, S ;
Backes, G ;
Jahoor, A ;
Sabbagh, A ;
Ceccarelli, S .
THEORETICAL AND APPLIED GENETICS, 2003, 107 (07) :1215-1225
[6]   CONTROLLING THE FALSE DISCOVERY RATE - A PRACTICAL AND POWERFUL APPROACH TO MULTIPLE TESTING [J].
BENJAMINI, Y ;
HOCHBERG, Y .
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 1995, 57 (01) :289-300
[7]   ASSESSMENT OF DROUGHT RESISTANCE IN PEARL-MILLET [PENNISETUM-AMERICANUM (L) LEEKE] .1. FACTORS AFFECTING YIELDS UNDER STRESS [J].
BIDINGER, FR ;
MAHALAKSHMI, V ;
RAO, GDP .
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1987, 38 (01) :37-48
[8]   OSMOTIC ADJUSTMENT AND GROWTH OF BARLEY GENOTYPES UNDER DROUGHT STRESS [J].
BLUM, A .
CROP SCIENCE, 1989, 29 (01) :230-233
[9]   Crop responses to drought and the interpretation of adaptation [J].
Blum, A .
PLANT GROWTH REGULATION, 1996, 20 (02) :135-148
[10]   TRAINING A 3-NODE NEURAL NETWORK IS NP-COMPLETE [J].
BLUM, AL ;
RIVEST, RL .
NEURAL NETWORKS, 1992, 5 (01) :117-127