4 Works

A polygenic architecture with habitat-dependent effects underlies ecological differentiation in Silene

Susanne Gramlich, Xiaodong Liu, C. Alex Buerkle, Adrien Favre & Sophie Karrenberg
Ecological differentiation can drive speciation but it is unclear how the genetic architecture of habitat-dependent fitness contributes to lineage divergence. We investigated the genetic architecture of cumulative flowering, a fitness component, in second-generation hybrids between Silene dioica and S. latifolia transplanted into the natural habitat of each species. We used reduced-representation sequencing and Bayesian Sparse Linear Mixed Models (BSLMMs) to analyze the genetic control of cumulative flowering in each habitat. Our results point to a...

The life and times of Pteridinium simplex

Simon Darroch, Brandt Gibson, Maggie Syversen, Imran Rahman, Rachel Racicot, Frances Dunn, Susana Gutarra-Diaz, Eberhard Schindler, Achim Wehrmann & Marc Laflamme
Pteridinium simplex is an iconic erniettomorph taxon best known from late Ediacaran successions in South Australia, Russia, and Namibia. Despite nearly 100 years of study, there remain fundamental questions surrounding the paleobiology and -ecology of this organism, including it’s life position relative the sediment-water interface, and how it fed and functioned within benthic communities. Here, we combine a re-description of specimens housed at the Senckenberg Forschungsinstitut und Naturmuseum Frankfurt with field observations of fossiliferous surfaces...

Joining forces in Ochnaceae phylogenomics: A tale of two targeted sequencing probe kits

Toral Shah, Julio V. Schneider, Georg Zizka, Olivier Maurin, William Baker, Félix Forest, Grace E. Brewer, Vincent Savolainen, Iain Darbyshire & Isabel Larridon
Premise: Both universal and family-specific targeted sequencing probe kits are becoming widely used for the reconstruction of phylogenetic relationships in angiosperms. Within the pantropical Ochnaceae, we show that with careful data filtering, universal kits are equally as capable in resolving intergeneric relationships as custom probe kits. Furthermore, we show the strength in combining data from both kits to mitigate bias and provide a more robust result to resolve evolutionary relationships. Methods: We sampled 23 Ochnaceae...

Lichen speciation is sparked by a substrate requirement shift and reproduction mode differentiation

Annina Kantelinen, Christian Printzen, Péter Poczai & Leena Myllys
We show that obligate lignicoles in lichenized Micarea are predominately asexual whereas most facultative lignicoles reproduce sexually.AQ1 Our phylogenetic analyses (ITS, mtSSU, Mcm7) together with ancestral state reconstruction show that the shift in reproduction mode has evolved independently several times within the group and that facultative and obligate lignicoles are sister species. The analyses support the assumption that the ancestor of these species was a facultative lignicole. We hypothezise that a shift in substrate requirement...

Registration Year

  • 2022
    4

Resource Types

  • Dataset
    4

Affiliations

  • Senckenberg Museum
    2
  • Senckenberg Research Institute and Natural History Museum Frankfurt/M
    2
  • Royal Botanic Gardens
    1
  • University of Wyoming
    1
  • Vanderbilt University
    1
  • University of Copenhagen
    1
  • Natural History Museum
    1
  • University of Toronto
    1
  • Senckenberg am Meer
    1
  • University of Helsinki
    1