Genomic approaches for designing durum wheat ready for climate change with a focus on drought

Habash, D. Z.; Kehel, Zakaria; Nachit, M. M.

doi:10.1093/jxb/erp211

Cited by 116 publications

(87 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 2. Total dry matter and pod and seed dry weight of four peanut genotypes grown at air temperatures of 28/22˝C (mean 25˝C) or 38/22˝C (mean 30˝C) from 21 to 90 days after planting (adapted from [127] Potential genetic strategies to improve plant heat-stress tolerance include traditional and contemporary molecular breeding protocols and transgenic approaches [123,133,134]. Heat stress tolerance is a polygenic character, and this makes it difficult to identify heat tolerance related traits by classical genetics.…”

Section: Plant Breedingmentioning

confidence: 99%

Climate Change: Seed Production and Options for Adaptation

et al. 2016

View full text Add to dashboard Cite

Food security depends on seed security and the international seed industry must be able to continue to deliver the quantities of quality seed required for this purpose. Abiotic stress resulting from climate change, particularly elevated temperature and water stress, will reduce seed yield and quality. Options for the seed industry to adapt to climate change include moving sites for seed production, changing sowing date, and the development of cultivars with traits which allow them to adapt to climate change conditions. However, the ability of seed growers to make these changes is directly linked to the seed system. In the formal seed system operating in developed countries, implementation will be reasonably straight forward. In the informal system operating in developing countries, the current seed production challenges including supply failing to meet demand and poor seed quality will increase with changing climates.

show abstract

Section: Plant Breedingmentioning

confidence: 99%

Climate Change: Seed Production and Options for Adaptation

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Despite efforts to improve crop yield through breeding, soil management, or fertilization (Saint Pierre et al 2008;Habash et al 2009;Asseng et al 2014), climate change continues to affect food security (Wheeler and von Braun 2013). Thus, a climate-smart food system, first proposed by Wheeler and von Braun (2013), must be developed.…”

Section: Seed Endosymbiosis: An Underexplored Realitymentioning

confidence: 99%

Seed endosymbiosis: a vital relationship in providing prenatal care to plants

Vujanovic¹,

Germida²

2017

Can. J. Plant Sci.

View full text Add to dashboard Cite

Global food security is a challenge, especially under changing climatic conditions. Recent advances in plant technology using plant-microbiome interactions promise an increased crop production. Indeed, all healthy plants or crop genotypes carry a beneficial microbiome, encompassing root-and seed-associated endosymbionts, providing mycotrophy and mycovitality to plants, respectively. Recent studies have found that mycovitality, or the endosymbiotic seed-fungus relationship and its key translational functions, bear tangible biotechnological benefits. Thus, this paper underlines the role of endophytes as early plant growth promoters under stressful environments. Notably, it explores the concept of plant prenatal care towards enhanced seed vigor, germination, and resilience, which results in an improved crop yield under stressful conditions. It presents an extensive research overview of endosymbiotic plant-fungi relationships with special focus on the wheat seed, an important source of staple food. Historical advances in terminology and scientific concepts on the subject are also presented to highlight the areas where further research is urgently needed.Key words: seed, plant microbiome, endophytes, fungi, plant prenatal care, climate change.Résumé : La sécurité alimentaire mondiale est un véritable enjeu, surtout face au changement climatique. Des progrès récents en technologie végétale reposant sur les réactions entre la plante et le microbiome promettent une hausse de la production. De fait, les plantes et les génotypes agricoles vigoureux possèdent tous un microbiome utile composé des endosymbiontes des racines et de la semence permettant au végétal de profiter respectivement des matières organiques décomposées par les champignons (mycotrophie) et de la mycovitalité. Des études récentes montrent que la mycovitalité, c'est-à-dire l'endosymbiose entre la graine et le champignon et ses principales fonctions traductionnelles, a des effets biotechnologiques tangibles et bénéfiques. Le présent article met en relief le rôle des endophytes en tant qu'accélérateur de croissance initial, quand les conditions sont difficiles. Plus précisément, il examine le concept des « soins prénataux » végétaux assurant une augmentation de la vigueur, la germination et la résilience des semences, qui aboutissent elles-mêmes à un rendement supérieur de la culture malgré les facteurs de stress. L'auteur offre un vaste survol de la recherche sur les liens endosymbiotiques entre la plante et les cryptogames, s'attardant notamment au blé, cette denrée capitale. Il se penche aussi sur l'évolution historique de la terminologie et des concepts scientifiques, pour faire ressortir les éléments sur lesquels il faudrait rapidement approfondir les recherches. [Traduit par la Rédaction]

show abstract

“…is the leading human food source, accounting for more than half of the world's total food consumption (Ergen and Budak, 2009; Habash et al. , 2009); therefore, it is a major target for the development of cultivars that are high-yielding under water-limited conditions.…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association study of drought-related resistance traits in Aegilops tauschii

Qin

Lin

et al. 2016

Genet. Mol. Biol.

View full text Add to dashboard Cite

The D-genome progenitor of wheat (Triticum aestivum), Aegilops tauschii, possesses numerous genes for resistance to abiotic stresses, including drought. Therefore, information on the genetic architecture of A. tauschii can aid the development of drought-resistant wheat varieties. Here, we evaluated 13 traits in 373 A. tauschii accessions grown under normal and polyethylene glycol-simulated drought stress conditions and performed a genome-wide association study using 7,185 single nucleotide polymorphism (SNP) markers. We identified 208 and 28 SNPs associated with all traits using the general linear model and mixed linear model, respectively, while both models detected 25 significant SNPs with genome-wide distribution. Public database searches revealed several candidate/flanking genes related to drought resistance that were grouped into three categories according to the type of encoded protein (enzyme, storage protein, and drought-induced protein). This study provided essential information for SNPs and genes related to drought resistance in A. tauschii and wheat, and represents a foundation for breeding drought-resistant wheat cultivars using marker-assisted selection.

show abstract

Genomic approaches for designing durum wheat ready for climate change with a focus on drought

Cited by 116 publications

References 73 publications

Climate Change: Seed Production and Options for Adaptation

Climate Change: Seed Production and Options for Adaptation

Seed endosymbiosis: a vital relationship in providing prenatal care to plants

Genome-wide association study of drought-related resistance traits in Aegilops tauschii

Contact Info

Product

Resources

About