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dc.contributor.authorMelero Jiménez, Ignacio José
dc.contributor.authorMartín-Clemente, Elena
dc.contributor.authorGarcía-Sánchez, María Jesús 
dc.contributor.authorFlores-Moya, Antonio 
dc.contributor.authorBañares-España, Elena 
dc.date.accessioned2017-09-13T12:28:06Z
dc.date.available2017-09-13T12:28:06Z
dc.date.created2017
dc.date.issued2017-09-13
dc.identifier.urihttp://hdl.handle.net/10630/14464
dc.description.abstractBackgrounds Salinity is increasing in many inland waters, on a world-wide scale, due to agricultural practices, droughts, or rise in sea level. In order to understand the effects of increased salinity on freshwater ecosystems, the cosmopolitan toxic cyanobacterium Microcystis aeruginosa (Kützing) Kützing was selected as a model. It is known that this species that this species cannot proliferate in salinity >10-15 g∙L-1 but the limit of the adaptation to salinity remains to be investigated. Objectives To detect the maximum genetic adaptation capacity of three strains of M. aeruginosa (isolated from a freshwater reservoir with salinity <0.025 g∙L-1, i.e. without previous “evolution salinity history”) to the exposure of increased salinity. Methods An experimental evolutionary approach (ratchet experiment) was used. In order to analyze the differential evolutionary potential of three M. aeruginosa strains, two ratchet experiments were performed based on “soft” or “intense” exponentially increased salinity. Conclusions Acclimation (supported by the gene expression already present in the ancestral populations) was similar in the three strains in both ratchets experiments (“soft” and “intense”). A significant enhancement in resistance, supported by the selection of new genetic variants arising by mutations (genetic adaptation), was achieved in all derived populations in both ratchet experiments, and in the three strains. However, the results showed that the dynamics and the limit of genetic adaptation depend on previous adaptation history (historical contingency).es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.Spanish Ministry of Science and Innovation through CGL2014-53682-P project.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectCianobacteriases_ES
dc.subject.othersalinityes_ES
dc.subject.otherToxic cianobacteriaes_ES
dc.subject.otherGenetic adaptationes_ES
dc.subject.otherRatchet protocoles_ES
dc.titleAn evolutionary approach to detect the maximum potential adaptation of Microscystis aeruginosa to salinityes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Cienciases_ES
dc.relation.eventtitleFEMS 7th Congress of European Microbiologistses_ES
dc.relation.eventplaceValencia, Spaines_ES
dc.relation.eventdateJulio 2017es_ES
dc.cclicenseby-nc-ndes_ES


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