RETRACTED CHAPTER: Molecular Breeding for Resistance to Economically Important Diseases of Fodder Oat

Saini, Pawan; Gani, Mudasir; Saini, Pooja; Bhat, Javaid Akhter; Francies, Rose Mary; Negi, Narender; Chauhan, Shakti

doi:10.1007/978-3-030-20728-1_9

Cited by 4 publications

(5 citation statements)

References 149 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, the “SWK001” cultivar showed minimal/no resistance against Ps-c as this cultivar developed severe symptoms ( Figure 1 B). The development of halo blight and its severity in oat plants differ depending on the interaction between the pathogen and plant, as well as the environmental conditions [ 12 ]. It is also important to consider the specific variety or cultivar, as significant variation may occur within cultivars from the same species with regard to their susceptibility or resistance to specific diseases [ 30 ].…”

Section: Resultsmentioning

confidence: 99%

“…Oat ( Avena sativa L.) crops rank among the top six most important cereals in the world, important for human consumption, livestock feed, fodder, forage, hay and silage. Due to its hardiness and ability to grow and resist change under adverse environmental conditions, oat crops are also considered a superior cereal crop [ 12 ]. Many of these benefits are due to the numerous bioactive phytochemicals present in oat plants, such as phenolic acids, flavonoids, phytosterols and carotenoids, to name a few.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Metabolomic Characterisation of Discriminatory Metabolites Involved in Halo Blight Disease in Oat Cultivars Caused by Pseudomonas syringae pv. coronafaciens

et al. 2022

View full text Add to dashboard Cite

The metabolome is the underlying biochemical layer of the phenotype and offers a functional readout of the cellular mechanisms involved in a biological system. Since metabolites are considered end-products of regulatory processes at a cellular level, their levels are considered the definitive response of the biological system to genetic or environmental variations. The metabolome thus serves as a metabolic fingerprint of the biochemical events that occur in a biological system under specific conditions. In this study, an untargeted metabolomics approach was applied to elucidate biochemical processes implicated in oat plant responses to Pseudomonas syringae pv. coronafaciens (Ps-c) infection, and to identify signatory markers related to defence responses and disease resistance against halo blight. Metabolic changes in two oat cultivars (“Dunnart” and “SWK001”) responding to Ps-c, were examined at the three-leaf growth stage and metabolome changes monitored over a four-day post-inoculation period. Hydromethanolic extracts were analysed using an ultra-high-performance liquid chromatography (UHPLC) system coupled to a high-definition mass spectrometer (MS) analytical platform. The acquired multi-dimensional data were processed using multivariate statistical analysis and chemometric modelling. The validated chemometric models indicated time- and cultivar-related metabolic changes, defining the host response to the bacterial inoculation. Further multivariate analyses of the data were performed to profile differential signatory markers, putatively associated with the type of launched defence response. These included amino acids, phenolics, phenolic amides, fatty acids, flavonoids, alkaloids, terpenoids, lipids, saponins and plant hormones. Based on the results, metabolic alterations involved in oat defence responses to Ps-c were elucidated and key signatory metabolic markers defining the defence metabolome were identified. The study thus contributes toward a more holistic understanding of the oat metabolism under biotic stress.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metabolomic Characterisation of Discriminatory Metabolites Involved in Halo Blight Disease in Oat Cultivars Caused by Pseudomonas syringae pv. coronafaciens

et al. 2022

View full text Add to dashboard Cite

show abstract

“…One of the representatives of this genus is sown oats ( Avena sativa L.), which is among the six cereals used for human consumption, livestock feed, forage, fodder crops, hay and silage. A. sativa is considered the best cereal crop due to its endurance and capacity for growth and resistance to change under unfavorable ambient factors [ 2 ]. Many of these benefits are due to the presence of multiple biologically active phytochemical substances in oat plants like phenolic compounds, flavonoids, phytosterols, carotenoids and others [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Metabolomic Profile and Functional State of Oat Plants (Avena sativa L.) Sown under Low-Temperature Conditions in the Cryolithozone

Nokhsorov,

Protopopov,

Sleptsov

et al. 2024

Plants

View full text Add to dashboard Cite

Oats are one of the most useful and widespread cereal crops in the world. In permafrost conditions (Central Yakutia), based on metabolic changes in late summer-sown oat plants (Avena sativa L.), the key processes involved in the cold acclimation of a valuable cereal species were identified. During the onset of low ambient temperatures, metabolites from leaf samples were profiled using gas chromatography with mass spectrometry (GC-MS) and were analyzed using principal component analysis (PCA). A total of 41 metabolites were identified in oat leaves. It was found that acclimation to suboptimal temperatures during the fall period leads to biochemical (accumulation of mono- and disaccharides and decrease in fatty acids and polyols) as well as physiological and biophysical changes (decrease in leaf PRI reflectance indices and chlorophyll a fluorescence). Therefore, the study contributes to a more holistic understanding of oat metabolism under low-temperature cryolithozone stress. It is believed that the analysis of changes in leaf reflection properties and JIP-test parameters of chlorophyll a fluorescence using leaf metabolomic profiling can be used in the selection of valuable varieties of cereal crops to obtain plant fodders with high nutrient contents under conditions of a sharply continental climate.

show abstract

“…It is made available under a preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in The copyright holder for this this version posted February 10, 2022 in the adaptation to changing growth environments. A-genome diploid A. longiglumis (ALO) has important traits including the high content of linoleic content in the grains [16], droughtadapted phenotypes [17], and resistance to crown rust disease [18]. The known genetic resources from wild diploid Avena species are limited, which impedes progress on understanding the genomic variation related to responses to biotic and abiotic stressors as well as quality traits.…”

Section: Introductionmentioning

confidence: 99%

Chromosome-scale genome assembly of the diploid oat Avena longiglumis reveals the landscape of repetitive sequences, genes and chromosome evolution in grasses

Liu

Yuan

Li³

et al. 2022

Preprint

View full text Add to dashboard Cite

Background: Oat (Avena sativa, 2n=6x=42) is an important crop, and with its wild relatives including A. longiglumis (ALO, 2n=6x=14), has advantageous agronomic and nutritional traits. A de-novo chromosome-level ALO genome assembly was made to investigate diversity and structural genome variation between Avena species and other Poaceae in an evolutionary context, and develop genomic resources to identify the pangenome and economic traits within Pooideae. Results: The 3.85 gigabase ALO genome (seven pseudo-chromosomes), contained 40,845 protein-coding genes and 87% repetitive sequences (84.21% transposable elements). An LTR retrotransposon family was abundant at all chromosome centromeres, and genes were distributed without major terminal clusters. Comparisons of synteny with A. eriantha and A. strigosa showed evolutionary translocations of terminal segments including many genes. Comparison with rice (x=12) and the ancestral grass karyotype showed synteny and features of chromosome evolution including fusions, translocations and insertions of syntenic blocks across Pooideae species. With a genome size 10 times larger than rice, ALO showed relatively uniform expansion along the chromosome arms, with few gene-poor regions along arms, and no major duplications nor deletions. Linked gene networks were identified (mixed-linkage glucans and cellulose synthase genes), and CYP450 genes may be related to salt-tolerance. Conclusions: The high-continuity genome assembly shows gene, chromosomal structural and copy number variation, providing a reference for the Avena pangenome, defining the full spectrum of diversity. Chromosomal rearrangements and genome expansion demonstrate features of evolution across the genus and grass BOP-clade, contributing to exploitation of gene and genome diversity through precision breeding.

show abstract

RETRACTED CHAPTER: Molecular Breeding for Resistance to Economically Important Diseases of Fodder Oat

Cited by 4 publications

References 149 publications

Metabolomic Characterisation of Discriminatory Metabolites Involved in Halo Blight Disease in Oat Cultivars Caused by Pseudomonas syringae pv. coronafaciens

Metabolomic Characterisation of Discriminatory Metabolites Involved in Halo Blight Disease in Oat Cultivars Caused by Pseudomonas syringae pv. coronafaciens

Metabolomic Profile and Functional State of Oat Plants (Avena sativa L.) Sown under Low-Temperature Conditions in the Cryolithozone

Chromosome-scale genome assembly of the diploid oat Avena longiglumis reveals the landscape of repetitive sequences, genes and chromosome evolution in grasses

Contact Info

Product

Resources

About