Phenotyping for drought tolerance in grain crops: when is it useful to breeders?

被引:204
作者
Passioura, J. B. [1 ]
机构
[1] CSIRO Plant Ind, Canberra, ACT 2601, Australia
关键词
deficit watering; floral resilience; germplasm; prebreeding; trait; water stress; ABIOTIC STRESS TOLERANCE; WATER-USE; SUBSOIL WATER; ROOT-SYSTEM; LEAF GROWTH; STAY-GREEN; YIELD; WHEAT; MAIZE; TRAIT;
D O I
10.1071/FP12079
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Breeding for drought tolerance in grain crops is not a generic issue. Periods of drought vary in length, timing and intensity and different traits are important with different types of drought. The search for generic drought tolerance using single-gene transformations has been disappointing. It has typically concentrated on survival of plants suffering from severe water stress, which is rarely an important trait in crops. More promising approaches that target complex traits tailored to specific requirements at the different main stages of the life of a crop, during: establishment, vegetative development, floral development and grain growth are outlined. The challenge is to devise inexpensive and effective ways of identifying promising phenotypes with the aim of aligning them with genomic information to identify molecular markers useful to breeders. Controlled environments offer the stability to search for attractive phenotypes or genotypes in a specific type of drought. The recent availability of robots for measuring large number of plants means that large numbers of genotypes can be readily phenotyped. However, controlled environments differ greatly from those in the field. Devising pot experiments that cater for important yield-determining processes in the field is difficult, especially when water is limiting. Thus, breeders are unlikely to take much notice of research in controlled environments unless the worth of specific traits has been demonstrated in the field. An essential link in translating laboratory research to the field is the development of novel genotypes that incorporate gene(s) expressing a promising trait into breeding lines that are adapted to target field environments. Only if the novel genotypes perform well in the field are they likely to gain the interest of breeders. High throughput phenotyping will play a pivotal role in this process.
引用
收藏
页码:851 / 859
页数:9
相关论文
共 70 条
[1]   Breeding for Yield Potential and Stress Adaptation in Cereals [J].
Araus, Jose Luis ;
Slafer, Gustavo A. ;
Royo, Conxita ;
Dolores Serret, M. .
CRITICAL REVIEWS IN PLANT SCIENCES, 2008, 27 (06) :377-412
[2]   Breeding for improved abiotic stress tolerance in maize adapted to southern Africa [J].
Bänziger, M ;
Setimela, PS ;
Hodson, D ;
Vivek, B .
AGRICULTURAL WATER MANAGEMENT, 2006, 80 (1-3) :212-224
[3]   CONTRIBUTION OF STORED PRE-ANTHESIS ASSIMILATE TO GRAIN-YIELD IN WHEAT AND BARLEY [J].
BIDINGER, F ;
MUSGRAVE, RB ;
FISCHER, RA .
NATURE, 1977, 270 (5636) :431-433
[4]   Improving wheat grain filling under stress by stem reserve mobilisation (Reprinted from Wheat: Prospects for global improvement, 1998) [J].
Blum, A .
EUPHYTICA, 1998, 100 (1-3) :77-83
[5]   Functional reversion to identify controlling genes in multigenic responses: analysis of floral abortion [J].
Boyer, John S. ;
McLaughlin, John E. .
JOURNAL OF EXPERIMENTAL BOTANY, 2007, 58 (02) :267-277
[6]   Genomic Prediction of Breeding Values when Modeling Genotype x Environment Interaction using Pedigree and Dense Molecular Markers [J].
Burgueno, Juan ;
de los Campos, Gustavo ;
Weigel, Kent ;
Crossa, Jose .
CROP SCIENCE, 2012, 52 (02) :707-719
[7]   High-throughput Phenotyping and Genomic Selection: The Frontiers of Crop Breeding Converge [J].
Cabrera-Bosquet, Llorenc ;
Crossa, Jose ;
von Zitzewitz, Jarislav ;
Dolors Serret, Maria ;
Luis Araus, Jose .
JOURNAL OF INTEGRATIVE PLANT BIOLOGY, 2012, 54 (05) :312-320
[8]  
Campos H, 2006, MAYDICA, V51, P369
[9]   Improving drought tolerance in maize: a view from industry [J].
Campos, H ;
Cooper, A ;
Habben, JE ;
Edmeades, GO ;
Schussler, JR .
FIELD CROPS RESEARCH, 2004, 90 (01) :19-34
[10]   Bacterial RNA chaperones confer abiotic stress tolerance in plants and improved grain yield in maize under water-limited conditions [J].
Castiglioni, Paolo ;
Warner, Dave ;
Bensen, Robert J. ;
Anstrom, Don C. ;
Harrison, Jay ;
Stoecker, Martin ;
Abad, Mark ;
Kumar, Ganesh ;
Salvador, Sara ;
D'Ordine, Robert ;
Navarro, Santiago ;
Back, Stephanie ;
Fernandes, Mary ;
Targolli, Jayaprakash ;
Dasgupta, Santanu ;
Bonin, Christopher ;
Luethy, Michael H. ;
Heard, Jacqueline E. .
PLANT PHYSIOLOGY, 2008, 147 (02) :446-455