Identifying aphid resistance in the ancestral wheat Triticum monococcum under field conditions

Wheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission. Through field phenotyping, we investigated aphid resistance in ancestral wheat Triticum monococcum (L.). Aphid ( Rhopalosiphum padi (L...

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Bibliographic Details
Published in:Scientific reports 2021-06, Vol.11 (1), p.13495-13495, Article 13495
Main Authors: Simon, Amma L., Caulfield, John C., Hammond-Kosack, Kim E., Field, Linda M., Aradottir, Gudbjorg I.
Format: Article
Language:English
Subjects:
631/158
631/158/2456
631/601/1466
Agricultural practices
Animals
Aphidoidea
Aphids - growth & development
Disease resistance
Disease Resistance - physiology
Genotypes
Humanities and Social Sciences
Infestation
Insects
Integrated pest management
Larvae
multidisciplinary
Natural enemies
Pest control
Pest resistance
Phenotyping
Plant Diseases - parasitology
Population growth
Science
Science (multidisciplinary)
Triticum - growth & development
Triticum - parasitology
Triticum monococcum
Wheat
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Summary:Wheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission. Through field phenotyping, we investigated aphid resistance in ancestral wheat Triticum monococcum (L.). Aphid ( Rhopalosiphum padi (L.) , Sitobion avenae (F.) and Metopolophium dirhodum (Wlk.)) populations and natural enemy presence (parasitised mummified aphids, ladybird adults and larvae and lacewing eggs and larvae) on two naturally susceptible wheat varieties, Triticum aestivum (L.) var. Solstice and T. monococcum MDR037, and three potentially resistant genotypes T. monococcum MDR657, MDR045 and MDR049 were monitored across three years of field trials. Triticum monococcum MDR045 and MDR049 had smaller aphid populations, whereas MDR657 showed no resistance. Overall, natural enemy presence was positively correlated with aphid populations; however, MDR049 had similar natural enemy presence to MDR037 which is susceptible to aphid infestation. It is hypothesised that alongside reducing aphid population growth, MDR049 also confers indirect resistance by attracting natural enemies. The observed resistance to aphids in MDR045 and MDR049 has strong potential for introgression into commercial wheat varieties, which could have an important role in Integrated Pest Management strategies to reduce aphid populations and virus transmission.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-92883-9