Resistance to insect pests in wheat—rye and Aegilops speltoides Tausch translocation and substitution lines

Crespo‐Herrera, Leonardo; Singh, Ravi P.; Sabraoui, A.; El‐Bouhssini, M.

doi:10.1007/s10681-019-2449-7

Cited by 14 publications

(7 citation statements)

References 34 publications

(49 reference statements)

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“…Previously, Dn7 , Gb2 , and Gb6 resistance genes to cereal aphids have been reported on chromosome arm 1R ( Friebe et al., 1996 ; Friebe et al., 1999 ; Anderson et al., 2003 ). Also, 1RSam.1AL and MA1S.1RLe(1B), 1Re(1D) wheat–rye translocation, and substitution lines were shown with a high level of resistance against HF and RWA, and these lines are now used in the international wheat breeding programs ( Crespo-Herrera et al., 2019 ). The wheat-alien introgression lines with the presence of 1R, 1RS, 2R, 3R, 3RS, 4R, 5R, 6RL, and L. racemosus and L. mollis chromosomes provides resistance to the Syrian HF biotype.…”

Section: Discussionmentioning

confidence: 99%

Diverse Wheat-Alien Introgression Lines as a Basis for Durable Resistance and Quality Characteristics in Bread Wheat

et al. 2020

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Wheat productivity has been significantly improved worldwide through the incorporation of novel genes from various gene pools, not least from wild relatives of wheat, into the commonly cultivated bread and durum wheat. Here, we present and summarize results obtained from a diverse set of wheat-alien introgression lines with mainly introgressions of rye, but also of Leymus spp. and Thinopyrum junceiforme into bread-wheat (Triticum aestivum L.). From this material, lines carrying 2RL were found with good agronomic performance and multiple resistance not least towards several races of powdery mildew. A novel resistance gene, one of few showing resistance towards all today identified stem rust races, designated Sr59, was also found originating from 2RL. Lines with multiple introgressions from 4R, 5R, and 6R were found resistant towards the majority of the stripe rust races known today. Due to lack of agricultural adaptation in these lines, transfer of useful genes into more adapted wheat material is a necessity, work which is also in progress through crosses with the CSph1b mutant, to be able to only transfer small chromosome segments that carry the target gene. Furthermore, resistance towards Russian wheat aphid was found in lines having a substitution of 1R (1D) and translocations of 3DL.3RS and 5AL.5RS. The rye chromosomes 1R, 2R, and 6R were found responsible for resistance towards the Syrian Hessian fly. High levels of especially zinc was found in several lines obtained from crosses with Leymus racemosus and Leymus mollis, while also some lines with 1R, 2R, or 5R showed increased levels of minerals and in particular of iron and zinc. Moreover, lines with 1R, 2R, 3R, and Leymus spp. introgressions were also found to have a combination of high iron and zinc and low cadmium concentrations. High variation was found both in grain protein concentration and gluten strength, measured as %UPP, within the lines, indicating large variation in bread-making quality. Thus, our study emphasizes the impact that wheat-alien introgression lines can contribute to current wheat lines and shows large opportunities both to improve production, resistance, and quality. To obtain such improvements, novel plant breeding tools, as discussed in this

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Section: Discussionmentioning

confidence: 99%

Diverse Wheat-Alien Introgression Lines as a Basis for Durable Resistance and Quality Characteristics in Bread Wheat

et al. 2020

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“…Recent reports (Deutsch et al, 2018) have shown that an increased temperature will significantly increase the grain loss in many parts of the world in wheat, maize, and rice. Likewise, another impact of climate change would be an increased number of generations per season of multivoltine species and their accelerated development causing potentially more damage to crops (Crespo-Herrera et al, 2019). Therefore, climate change will likely threaten sustainable wheat production in the future (Crespo-Herrera et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Likewise, another impact of climate change would be an increased number of generations per season of multivoltine species and their accelerated development causing potentially more damage to crops (Crespo-Herrera et al, 2019). Therefore, climate change will likely threaten sustainable wheat production in the future (Crespo-Herrera et al, 2019). In addition, wheat production has been threatened by unexpected abiotic and biotic stresses due to abrupt environmental changes or the movement of pathogens (Bakala et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Genetic Insight Into the Insect Resistance in Bread Wheat Exploiting the Untapped Natural Diversity

et al. 2022

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Climate change is an undeniable threat to sustainable wheat production in the future as an increased temperature will significantly increase grain loss due to the increased number of generations per season of multivoltine species that are detrimental to plants. Among insects, orange wheat blossom midge (OWBM), yellow wheat blossom midge (YWBM), saddle gall midge (SGM), thrips, and frit fly (FF) are important wheat pests in the European environments, which can be managed by the development of resistant cultivars. This involves the identification, confirmation, and incorporation of insect resistance sources into new high-yielding cultivars. We used two diverse and unrelated wheat [winter wheat (WW) and spring wheat (SW)] panels to associate single-nucleotide polymorphism (SNP) markers with the mentioned pests using the tools of association mapping. All in all, a total of 645 and 123 significant associations were detected in WW and SW, respectively, which were confined to 246 quantitative trait loci. Many candidate genes were identified using the BLAST analysis of the sequences of associated SNPs. Some of them are involved in controlling the physical structures of plants such as stomatal immunity and closure, cuticular wax in leaf blade, whereas others are involved in the production of certain enzymes in response to biotic and abiotic stresses. To our knowledge, this is the first detailed investigation that deals with YWBM, SGM, thrips, and FF resistance genetics using the natural variation in wheat. The reported germplasm is also readily available to breeders across the world that can make rational decisions to breed for the pest resilience of their interest by including the resistant genotypes being reported.

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“…The International Center for Agricultural Research in the Dry Areas (ICARDA) in collaboration with its partners identified sources of resistance and developed germplasm carrying resistance to several of the key pests of wheat over the last 20 years, including Hessian fly and Sunn pest (Nsarellah et al, 2003); El Bouhssini et al., 2012; Emebiri et al., 2016; Bassi et al., 2019). Apart from the recently discovered sources combining resistance to Hessian fly and three aphid species (Crespo‐Herrera et l., 2019), all the resistant germplasm reported by ICARDA and its partners are for single insects ( al., 2013).…”

Section: Introductionmentioning

confidence: 99%

First combined resistance to Hessian fly and Sunn pest identified in synthetic hexaploid wheat

Sabraoui

Emebiri²,

Tadesse

et al. 2021

J Applied Entomology

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Hessian fly, Mayetiola destructor (Say), and Sunn pest, Eurygaster integriceps (Puton), are the two most damaging insect pests of wheat in North Africa, West and Central Asia. Host plant resistance is the most environmental friendly, cost‐effective and practical means of controlling insect pests. Twenty synthetic hexaploid wheat lines selected as resistant to Syrian Sunn pest in 2010 were screened for resistance to Moroccan Hessian fly biotype in 2016. The Hessian fly screening was carried out in standard greenhouse flats using a randomized complete block design with three replications, with susceptible and resistant checks in every test flat. The results showed that three synthetic hexaploid wheat lines exhibited resistance to both Moroccan Hessian fly biotype and Syrian Sunn pest. This is the first record of combined resistance to these two pests in wheat. Mapping populations using these sources of resistance are being developed using double haploid techniques for subsequent genetic characterization and identification of linked molecular markers for marker assisted selection.

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Resistance to insect pests in wheat—rye and Aegilops speltoides Tausch translocation and substitution lines

Cited by 14 publications

References 34 publications

Diverse Wheat-Alien Introgression Lines as a Basis for Durable Resistance and Quality Characteristics in Bread Wheat

Diverse Wheat-Alien Introgression Lines as a Basis for Durable Resistance and Quality Characteristics in Bread Wheat

Genetic Insight Into the Insect Resistance in Bread Wheat Exploiting the Untapped Natural Diversity

First combined resistance to Hessian fly and Sunn pest identified in synthetic hexaploid wheat

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