Does host adaptation of Tetranychus urticae populations in clementine orchards with a Festuca arundinacea cover contribute to a better natural regulation of this pest mite?
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Otros documentos de la autoría: Aguilar-Fenollosa, Ernestina; Pina, Tatiana; Gómez-Martínez, María Antonia; Hurtado-Ruiz, Monica; Jaques , Josep A.
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http://dx.doi.org/10.1111/j.1570-7458.2012.01276.x |
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Título
Does host adaptation of Tetranychus urticae populations in clementine orchards with a Festuca arundinacea cover contribute to a better natural regulation of this pest mite?Autoría
Fecha de publicación
2012Editor
Wiley-Blackwell; The Netherlands Entomological SocietyISSN
1570-7458Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1111/j.1570-7458.2012.01276.x/abstractPalabras clave / Materias
Resumen
Tetranychus urticae Koch (Acari: Tetranychidae) is a key pest of clementine mandarins, Citrus clementina Tanaka (Rutaceae), in Spain. This mite is highly polyphagous and can be easily found in clementine orchards, ... [+]
Tetranychus urticae Koch (Acari: Tetranychidae) is a key pest of clementine mandarins, Citrus clementina Tanaka (Rutaceae), in Spain. This mite is highly polyphagous and can be easily found in clementine orchards, both in the trees and in the associated flora. In a previous study we found that the use of a cover of Festuca arundinacea Schreber (Poaceae) offered a better regulation of T. urticae populations than either bare soil or the traditional wild cover, which included a mix of weed species. We hypothesized that the selection of two host races of T. urticae, specialized in F. arundinacea and C. clementina, could partly explain the results obtained (bottom-up regulation). Reciprocal transplant experiments show that sympatric deme × host combinations had higher mean fitness values than the allopatric combinations in clementine, but not in F. arundinacea, for most of the fitness parameters evaluated in our study. Because local adaptation implies mean deme fitness to be systematically higher for the sympatric deme × habitat combinations than for the allopatric ones, these results can be taken as indicative of occurrence of local adaptation in T. urticae. Molecular genetic analyses with microsatellite markers support this conclusion and indicate that local adaptation of T. urticae found in our system may indeed contribute to a better natural regulation of this mite. [-]
Publicado en
Entomologia Experimentalis et Applicata. 2012, Volume 144, Issue 2Derechos de acceso
© 2012 The Authors Entomologia Experimentalis et Applicata © 2012 The Netherlands Entomological Society
[The definitive version is available at www3.interscience.wiley.com]
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
[The definitive version is available at www3.interscience.wiley.com]
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
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