Article (Scientific journals)
Terpene Synthase Gene OtLIS Confers Wheat Resistance to Sitobion avenae by Regulating Linalool Emission
Zhan, Yidi; Zhao, Lei; Zhao, Xiaojing et al.
2021In Journal of Agricultural and Food Chemistry
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Keywords :
aphid resistance; gas chromatography-mass spectrometer; octoploid Trititrigia; RNA-seq; S-linalool synthase; volatile terpenoids
Abstract :
[en] Sitobion avenae (Fabricius) is a major insect pest of wheat worldwide that reduces crop yield and quality annually. Few germplasm resources with resistant genes to aphids have been identified and characterized. Here, octoploid Trititrigia, a species used in wheat distant hybridization breeding, was found to be repellent to S. avenae after 2 year field investigations and associated with physiological and behavioral assays. Linalool monoterpene was identified to accumulate dominantly in plants in response to S. avenae infestation. We cloned the resistance gene OtLIS by assembling the transcriptome of aphid-infested or healthy octoploid Trititrigia. Functional characterization analysis indicated that OtLIS encoded a terpene synthase and conferred resistance to S. avenae by linalool emission before and after aphid feeding. Our study suggests that the octoploid Trititrigia with the aphid-resistant gene OtLIS may have potential as a target resource for further breeding aphid-resistant wheat cultivars.
Disciplines :
Entomology & pest control
Author, co-author :
Zhan, Yidi
Zhao, Lei
Zhao, Xiaojing
Liu, Jiahui  ;  Université de Liège - ULiège > TERRA Research Centre
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Liu, Yong
Language :
English
Title :
Terpene Synthase Gene OtLIS Confers Wheat Resistance to Sitobion avenae by Regulating Linalool Emission
Publication date :
October 2021
Journal title :
Journal of Agricultural and Food Chemistry
ISSN :
0021-8561
eISSN :
1520-5118
Publisher :
American Chemical Society, United States - District of Columbia
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Natural Science Foundation of Shandong Province and the National Key R&D Program of China
Available on ORBi :
since 22 December 2021

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