Journal ArticleDOI
Evaluation of Cultivated and Wild Allium Accessions for Resistance to Fusarium oxysporum f. sp. cepae
Ellojita Rout,P. Tripathy,Satyabrata Nanda,Sanghamitra Nayak,Raj Kumar Joshi +4 more
- Vol. 86, Iss: 3, pp 643-649
TLDR
The present study suggests that besides related Allium species, A. sativum ‘CBT-As153’ can be used as a potential donor of FBR resistance for genetic improvement of onion and garlic in India.Abstract:
Fusarium basal rot (FBR) caused by Fusarium oxysporum f. sp. cepae (FOC) is a highly destructive soil borne disease incurring heavy damage in pre and post harvest onion and garlic crops worldwide. Only a few onion lines exhibit partial resistance against the pathogen and there is a need for identification of more effective resistance sources for use in breeding programmes. Selected sets of wild onion and garlic accession and seven related Allium species were screened for resistance to Fusarium basal rot using three FOC isolates. FOC infection revealed significant variation among the evaluated Allium species (at P = 0.001). A. sativum accession ‘CBT-As153’ showed high level of resistance to each isolate while A. cepa accession ‘CBT-Ac77’ exhibited intermediate resistance. Among related Allium species, A. fistulosum, A. roylei and A. schoenoprasum were highly resistant, A. tuberosum had mixed response while A. griffithianum was susceptible. Further, the root density of Allium species negatively correlated with disease incidence for different FOC isolates. Thus, the present study suggests that besides related Allium species, A. sativum ‘CBT-As153’ can be used as a potential donor of FBR resistance for genetic improvement of onion and garlic in India.read more
Citations
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Journal ArticleDOI
Molecular characterization and heterologous expression of a pathogen induced PR5 gene from garlic ( Allium sativum L.) conferring enhanced resistance to necrotrophic fungi
TL;DR: The results suggest that, besides antifungal activities against the necrotrophs, AsPR5 also play significant role in activating multiple defense pathways for enhancing stress resistance in crop plants.
Journal ArticleDOI
Multiple garlic (Allium sativum L.) microRNAs regulate the immunity against the basal rot fungus Fusarium oxysporum f. sp. Cepae.
TL;DR: Results indicate that multiple miRNAs are involved in garlic immunity against FOC and that the overexpression of miR164a, miR168a and miR393 can augment garlic resistance to Fusarium basal rot infection.
Journal ArticleDOI
Regulation of miR394 in Response to Fusarium oxysporum f. sp. cepae (FOC) Infection in Garlic (Allium sativum L)
TL;DR: The results suggest that miR394 functions in negative modulation of FOC resistance and the difference in timing and levels of expression in variable genotypes could be examined as markers for selection of F OC resistant garlic cultivars.
Journal ArticleDOI
Assembly and characterisation of a unique onion diversity set identifies resistance to Fusarium basal rot and improved seedling vigour
Andrew Taylor,Graham R. Teakle,Peter Glen Walley,William E. Finch-Savage,Alison C. Jackson,Julie E. Jones,Paul Hand,Brian Thomas,Michael J. Havey,David Pink,John P. Clarkson +10 more
TL;DR: The onion diversity set and associated trait data provide a valuable resource for future germplasm selection and onion breeding and confirm the utility of the diversity set for discovering beneficial traits.
Journal ArticleDOI
Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri
TL;DR: The present study suggest that, the newly identified resistance sources can be used as potential donors for ongoing purple blotch resistance breeding program in India.
References
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Journal ArticleDOI
Biological properties of onions and garlic
TL;DR: Their main biological activities have been reviewed, indicating the compounds responsible for each of them, and the influence of the processing on the bioactivity and the adverse effects and interactions with different medications have been considered.
Journal ArticleDOI
Map-based isolation of the leaf rust disease resistance gene Lr10 from the hexaploid wheat (Triticum aestivum L.) genome
Catherine Feuillet,Silvia Travella,Nils Stein,Nils Stein,Laurence Albar,Laurence Albar,Aurélie Nublat,Beat Keller +7 more
TL;DR: It is concluded that map-based cloning of genes of agronomic importance in hexaploid wheat is now feasible, opening perspectives for molecular bread wheat improvement trough transgenic strategies and diagnostic allele detection.
Journal ArticleDOI
Resistance to oomycetes: a general role for the hypersensitive response?
TL;DR: Recent advances in the genetic, biochemical and cytological characterization of disease resistance suggests that the hypersensitive response is associated with all forms of resistance to Phytophthora and downy mildews.
Journal ArticleDOI
Breeding and genetics of Fusarium basal rot resistance in onion.
TL;DR: Current research suggests that a single gene, two genes, or multiple genes govern resistance to FBR, and breeding programs have successfully used screening procedures to develop intermediate- and long-day, FBR-resistant cultivars.
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