Journal ArticleDOI
Drought tolerance improvement in crop plants: An integrated view from breeding to genomics
Luigi Cattivelli,Fulvia Rizza,Franz-W. Badeck,Elisabetta Mazzucotelli,Anna M. Mastrangelo,Enrico Francia,Caterina Marè,Alessandro Tondelli,A. Michele Stanca +8 more
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TLDR
Breeders are asked to blend together all knowledge on the traits sustaining yield under drought and to accumulate the most effective QTLs and/or transgenes into elite genotypes without detrimental effects on yield potential, which will lead to new cultivars with high yield potential and high yield stability, that will result in superior performance in dry environments.About:
This article is published in Field Crops Research.The article was published on 2008-01-02. It has received 1281 citations till now. The article focuses on the topics: Drought tolerance & Plant breeding.read more
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MicroRNA156 improves drought stress tolerance in alfalfa (Medicago sativa) by silencing SPL13.
Muhammad Arshad,Biruk A. Feyissa,Biruk A. Feyissa,Lisa Amyot,Banyar Aung,Abdelali Hannoufa,Abdelali Hannoufa +6 more
TL;DR: Results reveal that miR156 improves drought tolerance in alfalfa at least partially by silencing SPL13, and an enhanced accumulation of compatible solute and increased levels of abscisic acid (ABA) and antioxidants in miR 156OE genotypes.
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β-amylase 1 (BAM1) degrades transitory starch to sustain proline biosynthesis during drought stress
Martina Zanella,Gian Luca Borghi,Claudia Pirone,Matthias Thalmann,Diana Pazmino,Alex Costa,Diana Santelia,Paolo Trost,Francesca Sparla +8 more
TL;DR: It is shown that leaves of osmotically-stressed bam1 plants accumulated more starch and fewer soluble sugars than both wild-type and bam3 plants during the day, and bAm1 mutants were impaired in proline accumulation and suffered from stronger lipid peroxidation, compared with bothWild- type and bAM3 plants.
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Improvement of crop yield in dry environments: benchmarks, levels of organisation and the role of nitrogen
TL;DR: The achievements of direct selection for yield in improving drought adaptation is outlined, the limitations of indirect approaches in the context of levels of organization are discussed, and trade-offs and synergies between nitrogen nutrition and drought adaptation are emphasized.
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Natural variation and genetic constraints on drought tolerance
TL;DR: A better understanding of the molecular nature of pleiotropic gene action and the genetics of phenotypic plasticity will give insight into local adaptation in plants and provide new avenues for improving crops.
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Stay-green traits to improve wheat adaptation in well-watered and water-limited environments
TL;DR: Combining stay-green traits and environmental water-stress characterization, both standardized relative to anthesis, provides a powerful method to characterize and select for adaptation to well-watered and water-stressed environments.
References
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Stability Parameters for Comparing Varieties
S. A. Eberhart,W. A. Russell +1 more
TL;DR: The model, Yij = μ1 + β1Ij + δij, defines stability parameters that may be used to describe the performance of a variety over a series of environments to see whether genetic differences could be detected.
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Understanding plant responses to drought — from genes to the whole plant
TL;DR: Attention is drawn to the perception and signalling processes (chemical and hydraulic) of water deficits, which are essential for a holistic understanding of plant resistance to stress, which is needed to improve crop management and breeding techniques.
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Plant responses to drought, salinity and extreme temperatures: towards genetic engineering for stress tolerance
TL;DR: The present review summarizes the recent advances in elucidating stress-response mechanisms and their biotechnological applications and examines the following aspects: regulatory controls, metabolite engineering, ion transport, antioxidants and detoxification, late embryogenesis abundant (LEA) and heat-shock proteins.
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The analysis of adaptation in a plant-breeding programme
K.W. Finlay,G.N. Wilkinson +1 more
TL;DR: Varieties from particular geographic regions of the world showed a similarity in type of adaptation, which provides a useful basis for plant introduction and breeding.
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Seed Banks and Molecular Maps: Unlocking Genetic Potential from the Wild
TL;DR: The tools of genome research may finally unleash the genetic potential of the authors' wild and cultivated germplasm resources for the benefit of society.