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Sökning: WFRF:(Chase M. W) > (2015-2019) > Adaptive sequence e...

  • Balao, FranciscoUniversity of Seville,University of Vienna (författare)

Adaptive sequence evolution is driven by biotic stress in a pair of orchid species (Dactylorhiza) with distinct ecological optima

  • Artikel/kapitelEngelska2017

Förlag, utgivningsår, omfång ...

  • 2017-04-27
  • Wiley,2017

Nummerbeteckningar

  • LIBRIS-ID:oai:lup.lub.lu.se:87f434c7-fcee-45b9-a69c-be2bb97991d9
  • https://lup.lub.lu.se/record/87f434c7-fcee-45b9-a69c-be2bb97991d9URI
  • https://doi.org/10.1111/mec.14123DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • 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.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Trucchi, EmilianoUniversity of Vienna,University of Ferrara (författare)
  • Wolfe, Thomas M.Vienna Graduate School of Population Genetics,University of Vienna (författare)
  • Hao, Bao HaiUniversity of Vienna (författare)
  • Lorenzo, Maria TeresaUniversity of Vienna,University of Seville (författare)
  • Baar, JulianeUniversity of Vienna (författare)
  • Sedman, LauraGregor Mendel Institute of Molecular Plant Biology (författare)
  • Kosiol, CarolinUniversity of Veterinary Medicine Vienna,University of St Andrews (författare)
  • Amman, FabianUniversity of Vienna (författare)
  • Chase, Mark W.University of Western Australia, Crawley,University of Vienna (författare)
  • Hedrén, MikaelLund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science(Swepub:lu)sysb-mhe (författare)
  • Paun, OvidiuUniversity of Vienna (författare)
  • University of SevilleUniversity of Vienna (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Molecular Ecology: Wiley26:14, s. 3649-36620962-1083

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