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dc.contributor.authorJauset Berrocal, Ana Maria
dc.contributor.authorEdo-Tena, Eva
dc.contributor.authorCastañé Fernández, Cristina
dc.contributor.authorAgustí Abella, Núria
dc.contributor.authorAlomar, Òscar
dc.contributor.authorGrozeva, S.
dc.date.accessioned2015-11-30T18:17:42Z
dc.date.available2015-11-30T18:17:42Z
dc.date.issued2015-09-29
dc.identifier.issn1993-0771
dc.identifier.urihttp://hdl.handle.net/10459.1/49194
dc.description.abstractMacrolophus pygmaeus (Rambur, 1839) (Insecta, Heteroptera, Miridae) is a predator of key vegetable crop pests applied as a biocontrol agent in the Mediterranean region. M. pygmaeus and M. melanotoma (A. Costa, 1853) are cryptic species with great morphological similarity which results in their misidentification and negative consequences for the conservation of their populations on greenhouse and outdoor crops. In order to find out specific markers for their separation we studied the karyotype, male meiosis and heterochromatin composition of these species and additionally of a third species (as a reference one), M. costalis Fieber, 1858. We demonstrate here that all the three species share achiasmate male meiosis and sex chromosome pre-reduction. On the other hand, the species differ in karyotype, with 2n=28 (26+XY) in M. pygmaeus, 2n=27 (24+X1X2Y) in M. costalis, and 2n=34 (32+XY) in M. melanotoma, and heterochromatin distribution and composition. In addition, the species differ in sperm morphology: sperm cells of M. costalis are significantly longer with longer head and tail than those of M. melanotoma and M. pygmaeus, whereas sperm cells of M. melanotoma have a longer tail than those of M. pygmaeus. All these characters can be used as markers to identify the species, in particular the cryptic species M. melanotoma and M. pygmaeus.
dc.description.sponsorshipThis study has been funded by the Spanish Ministry of Economy and Competitiveness (MINECO) (Project AGL2011-24349), and by a travel grant from the University of Lleida - Fundació “La Caixa” to Dr Grozeva. The chromosome analysis was performed using microscope Axio Scope A1 – Carl Zeiss Microscopy upgraded by the project WETLANET (FP7 CSA – SUPPORT ACTION, GA 229802). We thank cordially Prof. Dr V. Kuznetsova for the valuable advices to improve the manuscript
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherPensoft Publishers
dc.relationMICINN/PN2008-2011/AGL2011-24349
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.3897/CompCytogen.v9i4.5530
dc.relation.ispartofComparative Cytogenetics, 2015, vol. 9, núm. 4, p. 613-623
dc.rightscc-by (c) Jauset et al., 2015
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMacrolophus
dc.subjectMiridae
dc.subjectKaryotype
dc.subjectsperm morphology
dc.subjectachiasmate meiosis
dc.subject.classificationControl biològic de plagues
dc.subject.classificationMediterrània (Regió)
dc.subject.classificationHemípters
dc.subject.classificationCitogenètica
dc.subject.otherBiological pest control
dc.subject.otherMediterranean Region
dc.subject.otherHemiptera
dc.subject.otherCytogenetics
dc.titleComparative cytogenetic study of three Macrolophus species (Heteroptera, Miridae.)
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2015-11-30T18:17:42Z
dc.identifier.idgrec023252
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.doihttps://doi.org/10.3897/CompCytogen.v9i4.5530
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/229802


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