Phenotypic specialization of the pea aphid in its southern limit of distribution

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dc.contributor.authorMartel, Sebastian I.
dc.contributor.authorZamora, Cristian A.
dc.contributor.authorBehrens, Camilo A.
dc.contributor.authorRezende, Enrico L.
dc.contributor.authorBozinovic, Francisco
dc.date.accessioned2025-01-20T20:09:07Z
dc.date.available2025-01-20T20:09:07Z
dc.date.issued2023
dc.description.abstractThe success of biological invasions ultimately relies on phenotypic traits of the invasive species. Aphids, which include many important pests worldwide, may have been successful invading new environments partly because they can maximize reproductive output by becoming parthenogenetic and losing the sexual phase of their reproductive cycle. However, invasive populations of aphids invading wide ranges can face contrasting environmental conditions and requiring different phenotypic strategies. Besides transitions in their reproductive cycle, it is only partially known which phenotypic traits might be associated to the invasion success of aphid populations in extended novel ranges. Here, we used four genotypes of the pea aphid Acyrthosiphon pisum from two localities in Chile to test for phenotypic specialization that might explain their establishment and spread in habitats exhibiting contrasting environmental conditions. We show that lineages living at a higher latitude with low temperatures show, in addition to facultative sexual reproduction, smaller body sizes, lower metabolic rates and a higher tolerance to the cold than the obligate asexual lineages living in a mild weather, at the expense of fecundity. Conversely, at higher temperatures only asexual lineages were found, which exhibit larger body sizes, higher reproductive outputs and consequently enhanced demographic ability. As a result, in conjunction with the reproductive mode, lineage specialization in physiological and life-history traits could be taken into account as an important strategy for populations of pea aphid to effectively invade extended novel ranges comprising different climatic conditions.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cbpa.2023.111388
dc.identifier.eissn1531-4332
dc.identifier.issn1095-6433
dc.identifier.urihttps://doi.org/10.1016/j.cbpa.2023.111388
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91969
dc.identifier.wosidWOS:001010008100001
dc.language.isoen
dc.revistaComparative biochemistry and physiology a-molecular & integrative physiology
dc.rightsacceso restringido
dc.subjectBiological invasions
dc.subjectPea aphid
dc.subjectReproductive mode
dc.subjectTrade-offs
dc.subjectThermal physiology
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titlePhenotypic specialization of the pea aphid in its southern limit of distribution
dc.typeartículo
dc.volumen279
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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