dc.creator | Balao Robles, Francisco J. | es |
dc.creator | Trucchi, Emiliano | es |
dc.creator | Wolfe, Thomas M. | es |
dc.creator | Hao, Bao-Hai | es |
dc.creator | Lorenzo, María Teresa | es |
dc.date.accessioned | 2017-12-21T13:25:40Z | |
dc.date.available | 2017-12-21T13:25:40Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Balao Robles, F.J., Trucchi, E., Wolfe, T.M., Hao, B. y Lorenzo, M.T. (2017). Adaptive sequence evolution is driven by biotic stress in a pair of orchid species (Dactylorhiza) with distinct ecological optima. Molecular Ecology, 2017 (26), 1-14. | |
dc.identifier.issn | 1365-294X | es |
dc.identifier.uri | http://hdl.handle.net/11441/67940 | |
dc.description.abstract | The orchid family is the largest in the angiosperms, but little is known about the
molecular basis of the significant variation they exhibit. We investigate here the
transcriptomic divergence between two European terrestrial orchids, Dactylorhiza
incarnata and Dactylorhiza fuchsii, and integrate these results in the context of their
distinct ecologies that we also document. Clear signals of lineage-specific adaptive
evolution of protein-coding sequences are identified, notably targeting elements of
biotic defence, including both physical and chemical adaptations in the context of
divergent pools of pathogens and herbivores. In turn, a substantial regulatory divergence
between the two species appears linked to adaptation/acclimation to abiotic
conditions. Several of the pathways affected by differential expression are also targeted
by deviating post-transcriptional regulation via sRNAs. Finally, D. incarnata
appears to suffer from insufficient sRNA control over the activity of RNA-dependent
DNA polymerase, resulting in increased activity of class I transposable elements
and, over time, in larger genome size than that of D. fuchsii. The extensive
molecular divergence between the two species suggests significant genomic and
transcriptomic shock in their hybrids and offers insights into the difficulty of coexistence
at the homoploid level. Altogether, biological response to selection, accumulated
during the history of these orchids, appears governed by their
microenvironmental context, in which biotic and abiotic pressures act synergistically
to shape transcriptome structure, expression and regulation. | es |
dc.description.sponsorship | OP and a Marie Curie IEF Fellowship PERG-GA2011-299608-TRANSADAPTATION | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Wiley and Sons | es |
dc.relation.ispartof | Molecular Ecology, 2017 (26), 1-14. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | abiotic stress | es |
dc.subject | defence | es |
dc.subject | ecological divergence | es |
dc.subject | positive selection | es |
dc.subject | small RNAs | es |
dc.title | Adaptive sequence evolution is driven by biotic stress in a pair of orchid species (Dactylorhiza) with distinct ecological optima | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología | es |
dc.relation.projectID | PERG-GA2011-299608-TRANSADAPTATION | es |
dc.relation.publisherversion | http://onlinelibrary.wiley.com/doi/10.1111/mec.14123/full | es |
dc.identifier.doi | 10.1111/mec.14123 | es |
dc.contributor.group | Universidad de Sevilla. RNM204: Ecologia Reproductiva de Plantas | es |
idus.format.extent | 15 p. | es |
dc.journaltitle | Molecular Ecology | es |
dc.publication.volumen | 2017 | es |
dc.publication.issue | 26 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 14 | es |
dc.identifier.sisius | 11397 | es |
dc.contributor.funder | European Union (UE) | |