Mapping quantitative trait loci for growth responses to exogenously applied stress induced hormones in wheat

Castro, Ana María; Tacaliti, M. S.; Giménez, Daniel; Tocho, E.; Dobrovolskaya, O. B.; Vasicek, A.; Collado, Manuel; Snape, J. W.; Börner, Andreas

doi:10.1007/s10681-008-9694-5

Cited by 13 publications

(6 citation statements)

References 34 publications

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“…It is interesting to note that QTL associated with the yield and quality enhancement attributes was discovered to colocalize with other varied QTLs on the 7A chromosome (Goel et al, 2019). Wheat QTLs were found to be associated with nine different stress-induced hormones when applied exogenously (Castro et al, 2008). Moreover, chromosomes 3B, 4A, and 5A had the most crucial QTLs for Abscisic Acid (Barakat et al, 2015).…”

Section: Qtl S and Genes Governing Drought Tolerancementioning

confidence: 96%

Genomic Approaches for Improving Drought Tolerance in Wheat (Triticum Aestivum L.): A Comprehensive Review

Paudel,

Pandey,

Subedi

et al. 2024

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The uses of traditional methods and instruments have led to a great success in plant breeding through the creation of better cultivars. Currently, the accessibility of genomic data as well as techniques is fueling a novel paradigm in the breeding of plants since they make it easier to explore the relationship between the genotype and phenotype, solely for intricate traits. The mass sequencing of genomes, transcriptomes, is producing a multitude of genetic data and metabolomics made feasible by Next Generation Sequencing (NGS) technology. The analysis of NGS data utilizing advances in bioinformatics makes large sets of molecular markers available, fosters the discovery of new genes and regulatory sequences, and even provides accessibility to huge number of molecular markers. Breeders are able to comprehend molecular underpinnings of many complicated phenotypes, all as a result of genome-wide expression research. A complicated characteristic, drought tolerance (DT) is now a major danger to the world's food security since it limits productivity. Developing drought-tolerant wheat cultivars through traditional breeding has been hampered by itscomplexity. Hence, to increase wheat's resistance to drought, marker assisted selection (MAS) and genetic engineering have been employed to change some genes or transcription factors. With the evolution of new concept, "Omics," it has become easier for identification and characterization of genes related associated to drought tolerance. To recapitulate, breakthrough in genomics is giving breeders innovative tools and technologies, which enable a giant step ahead towards the advancement in plant breeding by developing drought tolerant wheat cultivars.

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Section: Qtl S and Genes Governing Drought Tolerancementioning

confidence: 96%

Genomic Approaches for Improving Drought Tolerance in Wheat (Triticum Aestivum L.): A Comprehensive Review

Paudel,

Pandey,

Subedi

et al. 2024

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“…This QTL showed strong linkage with Dhn1 / Dhn2 locus depicting a direct association between ABA accumulation and early flowering based drought tolerance in wheat ( Ibrahim et al, 2012 ). Nine QTLs were mapped in wheat in response to exogenously applied ABA, SA, JA, and ethylene, suggesting the presence of potential genes involved in signaling in these regions ( Castro et al, 2008 ).…”

Section: Genomics Based Improvement Of Drought Signalingmentioning

confidence: 99%

From Genetics to Functional Genomics: Improvement in Drought Signaling and Tolerance in Wheat

et al. 2015

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Drought being a yield limiting factor has become a major threat to international food security. It is a complex trait and drought tolerance response is carried out by various genes, transcription factors (TFs), microRNAs (miRNAs), hormones, proteins, co-factors, ions, and metabolites. This complexity has limited the development of wheat cultivars for drought tolerance by classical breeding. However, attempts have been made to fill the lost genetic diversity by crossing wheat with wild wheat relatives. In recent years, several molecular markers including single nucleotide polymorphisms (SNPs) and quantitative trait loci (QTLs) associated with genes for drought signaling pathways have been reported. Screening of large wheat collections by marker assisted selection (MAS) and transformation of wheat with different genes/TFs has improved drought signaling pathways and tolerance. Several miRNAs also provide drought tolerance to wheat by regulating various TFs/genes. Emergence of OMICS techniques including transcriptomics, proteomics, metabolomics, and ionomics has helped to identify and characterize the genes, proteins, metabolites, and ions involved in drought signaling pathways. Together, all these efforts helped in understanding the complex drought tolerance mechanism. Here, we have reviewed the advances in wide hybridization, MAS, QTL mapping, miRNAs, transgenic technique, genome editing system, and above mentioned functional genomics tools for identification and utility of signaling molecules for improvement in wheat drought tolerance.

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“…Aphid tolerant oat and barley genotypes showed no differences in growth or production when they were exposed to exogenous ET treatments (Castro et al 1995). Chromosomes carrying genes for tolerance to S. graminum and D. noxia, in synthetic wheats, were associated with compensatory growth to exogenous hormone treatments (Castro et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Mapping and candidate gene identification of loci induced by phytohormones in barley (Hordeum vulgare L.)

et al. 2013

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Phytohormones, a group of structurally unrelated small molecules are plant-signalling compounds that trigger induced resistance against certain pathogens and herbivores. The hormones jasmonic acid (JA), ABA, salicilic acid (SA) and ethylene (ET) are known to play major roles in regulating plant defence responses. In order to determine the changes explained the variation of RDW of ET-and ABAtreated plants. A sequence homology search was performed to derive the putative function of the genes linked to the QTLs. Several QTLs were identified located close to aphid resistance genes previously mapped. This is the first report of genes associated with hormone response in barley that could be involved with insect resistance. Those recombinant lines carrying the appropriate alleles could be useful for breeding barley to enlarge the genetic base of defence against stress.

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Mapping quantitative trait loci for growth responses to exogenously applied stress induced hormones in wheat

Cited by 13 publications

References 34 publications

Genomic Approaches for Improving Drought Tolerance in Wheat (Triticum Aestivum L.): A Comprehensive Review

Genomic Approaches for Improving Drought Tolerance in Wheat (Triticum Aestivum L.): A Comprehensive Review

From Genetics to Functional Genomics: Improvement in Drought Signaling and Tolerance in Wheat

Mapping and candidate gene identification of loci induced by phytohormones in barley (Hordeum vulgare L.)

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