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Plant Physiol

Title:		Host-adaptation and specialization in Tetranychidae mites
Author(s):		Bruinsma K; Rioja C; Zhurov V; Santamaria ME; Arbona V; Navarro M; Cazaux M; Auger P; Migeon A; Wybouw N; Van Leeuwen T; Diaz I; Gomez-Cadenas A; Grbic M; Navajas M; Grbic V;
Address:		"Department of Biology, The University of Western Ontario, London, Ontario N6A 5B7, Canada. Centro de Biotecnologia y Genomica de Plantas (CBGP), Universidad Politecnica de Madrid (UPM)-Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo, 20223 Madrid, Spain. Dpt. Biologia, Bioquimica y Ciencias Naturales, Universitat Jaume I, Campus Riu Sec, E-12071 Castellon, Spain. Institut Agro, IRD, Institut national de recherche pour l'agronomie, l'alimentation et l'environnement (INRAE) Centre de Biologie et Gestion des Populations (CBGP), Univ Montpellier, 34988 Montferrier-sur-Lez, France. Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium. Department of Agriculture and Food, University of La Rioja, Logrono, La Rioja, Spain. Faculty of Biology, University of Belgrade, Belgrade, Serbia"
Journal Title:		Plant Physiol
Year:		2023
Volume:		20230712
Issue:
Page Number:		-
DOI:		10.1093/plphys/kiad412
ISSN/ISBN:		1532-2548 (Electronic) 0032-0889 (Linking)
Abstract:		"Composite generalist herbivores are comprised of host-adapted populations that retain the ability to shift hosts. The degree and overlap of mechanisms used by host-adapted generalist and specialist herbivores to overcome the same host plant defences are largely unknown. Tetranychidae mites are exceptionally suited to address the relationship between host-adaptation and specialization in herbivores as this group harbours closely related species with remarkably different host ranges - an extreme generalist the two spotted spider mite (Tetranychus urticae Koch, Tu) and the Solanaceous specialist Tetranychus evansi (Te). Here, we used tomato-adapted two spotted spider mite (Tu-A) and Te populations to compare mechanisms underlying their host adaptation and specialization. We show that both mites attenuate induced tomato defenses, including protease inhibitors (PIs) that target mite cathepsin L digestive proteases. While Te solely relies on transcriptional attenuation of PI induction, Tu and Tu-A have elevated constitutive activity of cathepsin L proteases, making them less susceptible to plant anti-digestive proteins. Tu-A and Te also rely on detoxification of tomato constitutive defenses. Te uses esterase and P450 activities, while Tu-A depends on the activity of all major detoxification enzymatic classes to disarm tomato defensive compounds to a lesser extent. Thus, even though both Tu-A and Te use similar mechanisms to counteract tomato defenses, Te can better cope with them. This finding is congruent with the ecological and evolutionary times required to establish mite adaptation and specialization states, respectively"
Keywords:
Notes:		"PublisherBruinsma, Kristie Rioja, Cristina Zhurov, Vladimir Santamaria, Maria Estrella Arbona, Vicent Navarro, Marie Cazaux, Marc Auger, Philippe Migeon, Alain Wybouw, Nicky Van Leeuwen, Thomas Diaz, Isabel Gomez-Cadenas, Aurelio Grbic, Miodrag Navajas, Maria Grbic, Vojislava eng 2023/07/12 Plant Physiol. 2023 Jul 12:kiad412. doi: 10.1093/plphys/kiad412"