13 Works

A new sectional classification of Lachenalia (Asparagaceae) based on a multilocus DNA phylogeny

Graham D. Duncan, Carl D. Schlichting, Felix Forest, Allan G. Ellis, Alan R. Lemmon, Emily Moriarty Lemmon & G. Anthony Verboom
Lachenalia J.Jacq. ex Murray (Asparagaceae; Scilloideae; Hyacintheae) is a large and morphologically diverse genus of more than 140 bulbous species endemic to southern Africa. Previous attempts to infer a well resolved and robustly supported phylogeny of Lachenalia using Sanger sequencing of candidate loci and/or morphological characters have been largely unsuccessful. Consequently, the current infrageneric classification is artificial and there is a need to explore alternative avenues to produce a phylogenetic classification. In this paper we...

The Cenozoic history of palms: Global diversification, biogeography, and the decline of megathermal forests

Jun Ying Lim, Huasheng Huang, Alexander Farnsworth, Daniel Lunt, William Baker, Robert Morley, W. Daniel Kissling & Carina Hoorn
Aim: Megathermal rainforests and mangroves are much smaller in extent today than in the early Cenozoic, primarily due to global cooling and drying trends since the Eocene--Oligocene Transition (~ 34 Ma). The general reduction of these biomes is hypothesized to shape the diversity and biogeographic history of tropical plant clades. However, this has rarely been examined due to a paucity of good fossil records of tropical taxa and the difficulty in assigning them to modern...

A comprehensive phylogenomic platform for exploring the angiosperm tree of life

William Baker, Paul Bailey, Vanessa Barber, Abigail Barker, Sidonie Bellot, David Bishop, Laura Botigue, Grace Brewer, Tom Carruthers, James Clarkson, Jeffrey Cook, Robyn Cowan, Steven Dodsworth, Niroshini Epitawalage, Elaine Françoso, Berta Gallego, Matthew Johnson, Jan Kim, Kevin Leempoel, Olivier Maurin, Catherine McGinnie, Lisa Pokorny, Shyamali Roy, Malcolm Stone, Eduardo Toledo … & Félix Forest
The tree of life is the fundamental biological roadmap for navigating the evolution and properties of life on Earth, and yet remains largely unknown. Even angiosperms (flowering plants) are fraught with data gaps, despite their critical role in sustaining terrestrial life. Today, high-throughput sequencing promises to significantly deepen our understanding of evolutionary relationships. Here, we describe a comprehensive phylogenomic platform for exploring the angiosperm tree of life, comprising a set of open tools and data...

Ectopic expression of Triticum polonicum VRT-A2 underlies elongated glumes and grains in hexaploid wheat in a dosage-dependent manner: Additional data (images, phylogenetic alignments and trees)

Nikolai Adamski, James Simmonds, Jemima Brinton, Anna Backhaus, Yi Chen, Mark Smedley, Sadiye Hayta, Tobin Florio, Pamela Crane, Peter Scott, Alice Pieri, Olyvia Hall, J. Elaine Barclay, Myles Clayton, John Doonan, Candida Nibau & Cristobal Uauy
Flower development is an important determinant of grain yield in crops. In wheat, natural variation for the size of spikelet and floral organs is particularly evident in Triticum polonicum, a tetraploid subspecies of wheat with long glumes, lemmas, and grains. Using map-based cloning, we identified VRT2, a MADS-box transcription factor belonging to the SVP family, as the gene underlying the P1 locus. The causal P1 mutation is a sequence substitution in intron-1 that results in...

Shade alters grass growth and architecture by reducing root biomass

Cedrique Solofondranohatra, Maria Vorontsova, Rebecca Dewhirst, Claire Belcher, Stuart Cable, Vololoniaina Jeannoda & Caroline Lehmann
Variable tree cover characterizes tropical grassy biomes. Light availability in the ground layer becomes increasingly limited as tree cover increases while open canopy environments are associated with a flammable grassy ground layer. Grass species dominating the ground layer of these ecosystems have adopted strategies to persist and proliferate with frequent fire. However, there is limited understanding of how grass growth and flammability traits respond to changes in light availability. We experimentally grew 14 grass species...

Orchis nuclear microsatellite data

Leif Bersweden
Premise of the study The genetic structure of hybrid zones provides an insight into the potential for gene flow to occur between plant taxa. Four closely related European orchid species (Orchis anthropophora, O. militaris, O. purpurea and O. simia) hybridize when they co-occur. We aimed to characterize patterns of hybridization in O. militaris – O. purpurea, O. purpurea – O. simia and O. anthropophora – O. simia hybrid zones using molecular and morphological data. Methods...

DNA barcode analyses improve accuracy in fungal species distribution models

Javier Fernández-López, M. Teresa Telleria, Margarita Dueñas, Tom May & María P. Martín
Species distribution models based on environmental predictors are useful to explain a species geographic range. For many groups of organisms, including fungi, the increase of occurrence data sets has generalized their use. However, fungal species are not always easy to distinguish, and taxonomy of many groups is not completely settled. This study explores the effect of taxonomic uncertainty in databases used for modeling fungal distributions. We analyze distribution models for three morphospecies from the corticioid...

Data from: The structure of Leguminosae-Detarioideae dominant rain forest in Korup National Park, Cameroon

Xander Van Der Burgt, David Newbery & Sylvanos Njibili
Background and aims – We studied a cluster of trees in the Leguminosae subfamily Detarioideae, to: (1) determine the size, structure, and tree species composition of this cluster; (2) map the size, shape, and structure of groups of individual Detarioideae tree species in the cluster; (3) hypothesize on the origin and maintenance of the cluster. Location – Lowland rain forest in south Korup National Park, in the Southwest Region of Cameroon. Material and methods –...

Alignments from: Gene count from target sequence capture places three whole genome duplication events in Hibiscus L. (Malvaceae)

Jonna Eriksson, Christine Bacon, Dominic Bennett, Bernard Pfeil, Bengt Oxelman & Alexandre Antonelli
Background: The great diversity in plant genome size and chromosome number is partly due to polyploidization (i.e., genome doubling events). The differences in genome size and chromosome number among diploid plant species can be a window into the intriguing phenomenon of past genome doubling that may be obscured through time by the process of diploidization. The genus Hibiscus L. (Malvaceae) has a wide diversity of chromosome numbers and a complex genomic history. Hibiscus is ideal...

Systematics of Vigna subgenus Lasiospron (Benth.) Maréchal et al. (Leguminosae: Papilionoideae: Phaseolinae)

Alfonso Delgado, Matt Lavin, Cristiane Snak & Gwilym Lewis
A taxonomic treatment is herein provided for the six primarily Neotropical species of Vigna subg. Lasiospron. This subgenus is distinguished, in part, by its close relationship with Old World Vigna species, but rather than having an Old World Vigna floral asymmetry where distal floral parts can have a right-hand curvature (from a face-view perspective), distal parts of subg. Lasiospron flowers, like those of American Phaseolinae, curve to the left. Our proposed taxonomy reflects published phylogenetic...

The implications of interrelated assumptions on estimates of divergence times and rates of diversification

Tom Carruthers & Robert Scotland
Phylogenies are increasingly being used as a basis to provide insight into macroevolutionary history. Here, we use simulation experiments and empirical analyses to evaluate methods that use phylogenies as a basis to make estimates of divergence times and rates of diversification. This is the first study to present a comprehensive assessment of the key variables that underpin analyses in this field – including substitution rates, speciation rates, and extinction, plus character sampling and taxon sampling....

Genotyping by sequencing data of five legume tree species widespread in the rainforests of West and Central Africa

Rosalía Piñeiro, Olivier J Hardy, Carolina Tovar, Shyam Gopalakrishnan, Filipe Garrett Vieira & M. Thomas P. Gilbert
Although today the forest cover is continuous in Central Africa this may have not always been the case, as the scarce fossil record in this region suggests that arid conditions might have significantly reduced tree density during the Ice Ages. Our aim was to investigate whether the dry ice-age periods left a genetic signature on tree species that can be used to infer the date of the past fragmentation of the rainforest. We sequenced reduced...

Data from: Phylogenetics support the description of a new Sichuanese species, Susanne’s Gentian, Gentiana susanneae (Gentianaceae)

Adrien Favre, James Pringle & Pengcheng Fu
The region of the Qinghai-Tibet Plateau hosts a remarkable biodiversity, including a plethora of endemics. There, the process of documenting biodiversity is still ongoing, and recently, an unusual plant of Gentiana section Frigida was discovered at Cuopu Lakes (Sichuan, China). Although Flora of China identified these specimens as G. algida based upon unmistakable traits (e.g. corolla colour and length, sessile flowers), it was obvious that the Sichuanese plants strongly differed morphologically from G. algida specimens...

Registration Year

  • 2021
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Resource Types

  • Dataset
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Affiliations

  • Royal Botanic Gardens
    13
  • University of Exeter
    2
  • South African National Biodiversity Institute
    1
  • Aarhus University
    1
  • Université Libre de Bruxelles
    1
  • National University of Singapore
    1
  • University of Gothenburg
    1
  • National Autonomous University of Mexico
    1
  • Senckenberg Research Institute and Natural History Museum Frankfurt/M
    1
  • University of Hertfordshire
    1