New sources of Hessian fly resistance in Triticum turgidum wheat lines from Asia and Europe

Hessian fly ( Mayetiola destructor Say), a major destructive pest of host wheat ( Triticum aestivum L.), causes severe economic losses worldwide. While resistant wheat cultivars are used to mitigate Hessian fly damage, their extensive use can impose selection pressure on the insect population leadin...

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Bibliographic Details
Published in:Genetic resources and crop evolution 2023-06, Vol.70 (5), p.1341-1347
Main Authors: Subramanyam, Subhashree, Nemacheck, Jill A.
Format: Article
Language:English
Subjects:
Agriculture
Biomedical and Life Sciences
Biotypes
Breakdown
Cultivars
Economic impact
Economics
Heat resistance
High temperature
Infestation
Insects
Life Sciences
Mayetiola destructor
Pest resistance
Pests
Phenotypes
Plant breeding
Plant Genetics and Genomics
Plant Physiology
Plant resistance
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Short Communication
Temperature tolerance
Triticum turgidum
Wheat
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Summary:Hessian fly ( Mayetiola destructor Say), a major destructive pest of host wheat ( Triticum aestivum L.), causes severe economic losses worldwide. While resistant wheat cultivars are used to mitigate Hessian fly damage, their extensive use can impose selection pressure on the insect population leading to the development of virulent biotypes and consequently, breakdown of plant resistance. Efforts are required to continually identify new sources of resistance that can be deployed and incorporated into breeding programs to alleviate the economic damage caused by this insect pest. In the current study, we evaluated the phenotypic response of 178 Triticum turgidum L. (tetraploid) wheat accessions originating from Asia and Europe to Hessian fly infestation and identified four new sources of resistance in the wheat lines. Further, we demonstrated that the Hessian fly resistance phenotype in these four tetraploid cultivars is temperature sensitive, with breakdown of resistance occurring at elevated temperature. One of the wheat lines showed potential tolerance to Hessian fly infestation at higher temperatures offering a source of more durable resistance.
ISSN:0925-9864
1573-5109
DOI:10.1007/s10722-023-01566-z