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dc.rights.licenseReconocimiento 4.0 Internacional. (CC BY)-
dc.contributor.authorMartínez de la Escalera, Gabrielaes
dc.contributor.authorSegura, Angeles
dc.contributor.authorKruk, Carlaes
dc.contributor.authorGhattas, Badihes
dc.contributor.authorCohan, Frederickes
dc.contributor.authorIriarte, Andréses
dc.contributor.authorPiccini, Claudiaes
dc.date.accessioned2024-04-03T19:03:51Z-
dc.date.available2024-04-03T19:03:51Z-
dc.date.issued2022-02-08-
dc.identifier.urihttps://hdl.handle.net/20.500.12381/3485-
dc.description.abstractAddressing the ecological and evolutionary processes underlying biodi- versity patterns is essential to identify the mechanisms shaping community structure and function. In bacteria, the formation of new ecologically distinct populations (eco- types) is proposed as one of the main drivers of diversification. New ecotypes arise when mutations in key functional genes or acquisition of new metabolic pathways by horizontal gene transfer allow the population to exploit new resources, permit- ting their coexistence with the parental population. We previously reported the pres- ence of microcystin-producing organisms of the Microcystis aeruginosa complex (toxic MAC) through an 800-km environmental gradient ranging from freshwater to estuarine-marine waters in South America. We hypothesize that the success of toxic MAC in such a gradient is due to the existence of very closely related populations that are ecologically distinct (ecotypes), each specialized to a specific arrangement of environmental variables. Here, we analyzed toxic MAC genetic diversity through quantitative PCR (qPCR) and high-resolution melting analysis (HRMA) of a functional gene (mcyJ, microcystin synthetase cluster). We explored the variability of the mcyJ gene along the environmental gradient by multivariate classification and regression trees (mCART). Six groups of mcyJ genotypes were distinguished and associated with different combinations of water temperature, conductivity, and turbidity. We propose that each mcyJ variant associated with a defined environmental condition is an eco- type (or species) whose relative abundances vary according to their fitness in the local environment. This mechanism would explain the success of toxic MAC in such a wide array of environmental conditions.es
dc.description.sponsorshipAgencia Nacional de Investigación e Innovaciónes
dc.language.isoenges
dc.publisherAmerican Society for Microbiologyes
dc.rightsAcceso abierto*
dc.sourceApplied and Environmental Microbiologyes
dc.subjectEcotypeses
dc.subjectMultivariate CARTes
dc.subjectMcyJes
dc.subjectMicrocystis aeruginosa complexes
dc.subjectHRMAes
dc.titleGenotyping and Multivariate Regression Trees Reveal Ecological Diversification within the Microcystis aeruginosa Complex along a Wide Environmental Gradientes
dc.typeArtículoes
dc.subject.aniiCiencias Naturales y Exactas-
dc.subject.aniiCiencias Biológicas-
dc.subject.aniiEcología-
dc.subject.aniiMatemáticas-
dc.subject.aniiMatemática Aplicada-
dc.subject.aniiBiología Celular, Microbiología-
dc.identifier.aniiFCE_1_2019_1_156308es
dc.type.versionPublicadoes
dc.identifier.doihttps://journals.asm.org/doi/full/10.1128/aem.01475-21#:~:text=https%3A//doi.org/10.1128/aem.01475%2D21-
dc.anii.institucionresponsableInstituto de Investigaciones Biológicas Clemente Establees
dc.anii.institucionresponsableUniversidad de la República. Centro Universitario Regional del Este-
dc.anii.subjectcompleto//Ciencias Naturales y Exactas/Ciencias Biológicas/Ecologíaes
dc.anii.subjectcompleto//Ciencias Naturales y Exactas/Matemáticas/Matemática Aplicadaes
dc.anii.subjectcompleto//Ciencias Naturales y Exactas/Ciencias Biológicas/Ecologíaes
dc.anii.subjectcompleto//Ciencias Naturales y Exactas/Ciencias Biológicas/Biología Celular, Microbiologíaes
Aparece en las colecciones: Instituto de Investigaciones Biológicas Clemente Estable

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