Intraspecific variation for host immune activation by the spider mite Tetranychus evansi .

Autor:	Teodoro-Paulo J; cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.; Institut des Sciences de l'Évolution, University of Montpellier, CNRS, IRD, Montpellier, France., Alba JM; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands., Charlesworth S; cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal., Kant MR; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands., Magalhães S; cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal., Duncan AB; Institut des Sciences de l'Évolution, University of Montpellier, CNRS, IRD, Montpellier, France.
Jazyk:	angličtina
Zdroj:	Royal Society open science [R Soc Open Sci] 2023 Jun 14; Vol. 10 (6), pp. 230525. Date of Electronic Publication: 2023 Jun 14 (Print Publication: 2023).
DOI:	10.1098/rsos.230525
Abstrakt:	Many parasites can interfere with their host's defences to maximize their fitness. Here, we investigated if there is heritable variation in the spider mite Tetranychus evansi for traits associated with how they interact with their host plant. We also determined if this variation correlates with mite fecundity. Tetranychus evansi can interfere with jasmonate (JA) defences which are the main determinant of anti-herbivore immunity in plants. We investigated (i) variation in fecundity in the presence and absence of JA defences, making use of a wild-type tomato cultivar and a JA-deficient mutant ( defenseless-1 ), and (ii) variation in the induction of JA defences, in four T. evansi field populations and 59 inbred lines created from an outbred population originating from controlled crosses of the four field populations. We observed a strong positive genetic correlation between fecundity in the presence (on wild-type) and the absence of JA defences (on defenseless-1 ). However, fecundity did not correlate with the magnitude of induced JA defences in wild-type plants. Our results suggest that the performance of the specialist T. evansi is not related to their ability to manipulate plant defences, either because all lines can adequately reduce levels of defences, or because they are resistant to them. Competing Interests: We declare we have no competing interests. (© 2023 The Authors.)
Databáze:	MEDLINE
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