Transcriptional Responses of Resistant and Susceptible Wheat Exposed to Wheat Curl Mite

(1) Background: The wheat curl mite ( Keifer) is a key pest of wheat ( L.) worldwide. While a number of wheat cultivars resistant to the mites have been employed to minimize the impact on the yield and quality of grain, little is known regarding the mechanisms underlying host plant resistance. There...

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Bibliographic Details
Published in:International journal of molecular sciences 2021-03, Vol.22 (5), p.2703
Main Authors: Kiani, Mahnaz, Bryan, Becky, Rush, Charles, Szczepaniec, Adrianna
Format: Article
Language:English
Subjects:
Aceria tosichella Keifer
Animals
Disease Resistance
Gene Expression Profiling
Gene Expression Regulation, Plant
Mites
Plant Diseases - parasitology
plant resistance
plant–insect interaction
RNA-seq
Transcriptome
Triticum - genetics
Triticum - metabolism
Triticum - parasitology
Triticum aestivum L
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Summary:(1) Background: The wheat curl mite ( Keifer) is a key pest of wheat ( L.) worldwide. While a number of wheat cultivars resistant to the mites have been employed to minimize the impact on the yield and quality of grain, little is known regarding the mechanisms underlying host plant resistance. Therefore, the goal of this study was to explore changes in transcriptome of resistant and susceptible wheat in order to quantify the molecular changes that drive host plant resistance. (2) Methods: Two varieties, wheat curl mite-susceptible (Karl 92) and wheat curl mite-resistant (TAM112) wheat, both at 2-week postemergence, were used in this study. Half of the plants were exposed to wheat curl mite herbivory and half remained mite-free and served as controls. Transcriptome changes were quantified using RNA-seq and compared among treatments to identify genes and pathways affected by herbivores. (3) Results: We identified a number of genes and pathways involved in plant defenses against pathogens, herbivores, and abiotic stress that were differentially expressed in the resistant wheat exposed to wheat curl mite herbivory but were unaffected in the susceptible wheat. (4) Conclusions: Our outcomes indicated that resistant wheat counteracts wheat curl mite exposure through effective induction of genes and pathways that enhance its defense responses.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms22052703