A5034833941- Plant Diversity and Evolution
- Genetic diversity and population structure
- Plant and animal studies
- Genomics and Phylogenetic Studies
- Plant and Fungal Species Descriptions
- Plant Disease Resistance and Genetics
- Plant Pathogens and Fungal Diseases
- Plant Pathogens and Resistance
- Chromosomal and Genetic Variations
- Legume Nitrogen Fixing Symbiosis
- Ecology and Vegetation Dynamics Studies
- Forest Insect Ecology and Management
- Forest Ecology and Biodiversity Studies
- Plant biochemistry and biosynthesis
- Yeasts and Rust Fungi Studies
- Plant Reproductive Biology
- Genetic and phenotypic traits in livestock
- Plant Gene Expression Analysis
- Genetic Mapping and Diversity in Plants and Animals
- Plant and Fungal Interactions Research
- Insect and Arachnid Ecology and Behavior
- Plant Parasitism and Resistance
- Plant Taxonomy and Phylogenetics
- Mycorrhizal Fungi and Plant Interactions
- Plant Stress Responses and Tolerance
Norwegian Institute of Bioeconomy Research
2018-2024
University of Oulu
2018-2021
Université Libre de Bruxelles
2016-2020
University of British Columbia
2013-2019
Weill Cornell Medical College in Qatar
2019
University of Alberta
2019
Natural Resources Canada
2019
Canadian Forest Service
2019
Abstract The classification of the legume family proposed here addresses long‐known non‐monophyly traditionally recognised subfamily Caesalpinioideae, by recognising six robustly supported monophyletic subfamilies. This new uses as its framework most comprehensive phylogenetic analyses legumes to date, based on plastid matK gene sequences, and including near‐complete sampling genera (698 currently 765 genera) ca. 20% (3696) known species. region has been widely sequenced across legumes, in...
Summary Phylogenomics is increasingly used to infer deep‐branching relationships while revealing the complexity of evolutionary processes such as incomplete lineage sorting, hybridization/introgression and polyploidization. We investigate among subfamilies Leguminosae (or Fabaceae), third largest angiosperm family. Despite their ecological economic importance, a robust phylogenetic framework for legumes based on genome‐scale sequence data lacking. generated alignments 72 chloroplast genes...
Abstract The consequences of the Cretaceous–Paleogene (K–Pg) boundary (KPB) mass extinction for evolution plant diversity remain poorly understood, even though evolutionary turnover lineages at KPB is central to understanding assembly Cenozoic biota. apparent concentration whole genome duplication (WGD) events around may have played a role in survival and subsequent diversification lineages. To gain new insights into origins biodiversity, we examine origin early globally diverse legume...
The effect of past environmental changes on the demography and genetic diversity natural populations remains a contentious issue has rarely been investigated across multiple, phylogenetically distant species. Here, we perform comparative population genomic analyses demographic inferences for seven widely distributed ecologically contrasting European forest tree species based concerted sampling 164 their ranges. For all species, effective size, N
Invasive alien tree pathogens can cause significant economic losses as well large-scale damage to natural ecosystems. Early detection prevent their establishment and spread is an important approach used by several national plant protection organizations (NPPOs). Molecular tools targeting 10 of the most unwanted forest in Canada were developed part TAIGA project (http://taigaforesthealth.com/). Forest selected following independent prioritization. Specific TaqMan real-time PCR assays designed...
Abstract The effect of past environmental changes on the demography and genetic diversity natural populations remains a contentious issue has rarely been investigated across multiple, phylogenetically distant species. Here, we performed comparative population genomic analyses demographic inferences for seven widely distributed ecologically contrasted European forest tree species based concerted sampling 164 their ranges. For all species, effective size, N e , increased or remained stable...
Niche conservatism is prevalent during the evolution of plant lineages. However, inferring biome niche lability and its impact on tropical tree species diversification currently limited. To better understand effect rates, we analyzed an endemic lineage African trees, testing whether type (forest vs savanna) are non-randomly distributed. We reconstructed a time-calibrated phylogeny Berlinia clade (16 genera, ca 201 species) using 140 nuclear genes, 75% extant species, eight fossil...
Bark beetles form multipartite symbiotic associations with blue stain fungi (Ophiostomatales, Ascomycota). These fungal symbionts play an important role during the beetle's life cycle by providing nutritional supplementation, overcoming tree defences and modifying host tissues to favour brood development. The maintenance of stable symbioses seemingly less competitive in similar habitats is fundamental interest ecology evolution. We tested hypothesis that coexistence three species associated...
Pinus sylvestris (Scots pine) is the most widespread coniferous tree in boreal forests of Eurasia, with major economic and ecological importance. However, its large repetitive genome presents a challenge for conducting genome-wide analyses such as association studies, genetic mapping genomic selection. We present new 50K single-nucleotide polymorphism (SNP) genotyping array Scots pine research, breeding other applications. To select SNP set, we first genotyped 480 samples on 407 540...
Preventing the introduction and establishment of forest invasive alien species (FIAS) such as Asian gypsy moth (AGM) is a high-priority goal for countries with extensive resources Canada. The name AGM designates group closely related Lymantria (Lepidoptera: Erebidae: Lymantriinae) comprising two L. dispar subspecies (L. asiatica, japonica) three umbrosa, albescens, postalba), all considered potential FIAS in North America. Ships entering Canadian ports are inspected presence suspicious eggs,...
Plant diseases caused by fungi and Oomycetes represent worldwide threats to crops forest ecosystems. Effective prevention appropriate management of emerging rely on rapid detection identification the causal pathogens. The increase in genomic resources makes it possible generate novel genome-enhanced DNA assays that can exploit whole genomes discover candidate genes for pathogen detection. A pipeline was developed identify genome regions discriminate taxa or groups be converted into PCR...
Pollinator shifts are considered to drive floral trait evolution, yet little is still known about the modifications of petal epidermal surface at a biogeographic region scale. Here we investigated how independent from insects passerine birds in Macaronesian Islands consistently modified this (i.e. absence papillate cells). Using current phylogenies and extensive evidence field observations, selected total 81 plant species subspecies for microscopy comparative analysis, including 19 23...
Detarioideae is well known for its high diversity of floral traits, including flower symmetry, number organs, and petal size morphology. This has been characterized studied at higher taxonomic levels, but limited analyses have performed among closely related genera with contrasting traits due to the lack fully resolved phylogenetic relationships. Here, we used four representative transcriptomes develop an exome capture (target enrichment) bait entire subfamily applied it Anthonotha clade...
New mutations provide the raw material for evolution and adaptation. The distribution of fitness effects (DFE) describes spectrum new that can occur along a genome, is, therefore, vital interest in evolutionary biology. Recent work has uncovered striking similarities DFE between closely related species, prompting us to ask whether there is variation among populations same or species with different degrees divergence, at levels evolution. Using exome capture data from six tree sampled across...
Plant DNA barcoding currently relies on the application of a two-locus combination, matK + rbcL. Despite universality these two gene regions across plants, it is suspected that this combination might not have sufficient variation to discriminate closely related species. In study, we tested performance plant barcode along with additional plastid trnH-psbA, rpoC1 and rpoB nuclear region internal transcribed spacer (nrITS) in group 38 species Lotus from Macaronesian region. The has radiated...
The karyotype is shaped by different chromosome rearrangements during species evolution. However, determining which are responsible for changes a challenging task and the combination of robust phylogeny with refined characterization, GS measurements bioinformatic modelling necessary. Here, this approach was applied in Heterotaxis to determine what were dysploidy variation. We used two datasets (nrDNA cpDNA, both under MP BI) infer phylogenetic relationships among closely related genera...
Abstract Compared to angiosperms, gymnosperms lag behind in the availability of assembled and annotated genomes. Most genomic analyses gymnosperms, especially conifer tree species, rely on use de novo transcriptomes. However, level allelic redundancy transcript fragmentation these transcriptomes, their effect downstream applications have not been fully investigated. Here, we assessed three assembly strategies for short-reads data, including utility haploid megagametophyte tissue during as...
Early detection provides the best way to prevent introduction and establishment of alien plant pathogens. Amplification DNA by PCR has revolutionized monitoring Most those assays rely on amplification a fraction genome targeted species. With availability whole genomes for growing number fungi oomycetes it is becoming possible compare discover regions that are unique target organism. This study applied this pipeline develop set hierarchical TaqMan real‐time targeting all four Phytophthora...
Abstract The consequences of the Cretaceous-Paleogene (K-Pg) boundary (KPB) mass extinction for evolution plant diversity are poorly understood, even although evolutionary turnover lineages at KPB is central to understanding assembly Cenozoic biota. One aspect that has received considerable attention apparent concentration whole genome duplication (WGD) events around KPB, which may have played a role in survival and subsequent diversification lineages. In order gain new insights into origins...
Abstract Single‐nucleotide polymorphisms ( SNP s) are rapidly becoming the standard markers in population genomics studies; however, their use nonmodel organisms is limited due to lack of cost‐effective approaches uncover genome‐wide variation, and large number individuals needed screening process reduce ascertainment bias. To discover s for studies fungal symbionts mountain pine beetle MPB ), we developed a road map produce genotyping platform. We undertook whole‐genome sequencing approach...
Pythium species are ubiquitous organisms known to be pathogens terrestrial plants and marine algae. While several (hereafter, Pythium) described as red algae, little is about the pathogenicity of on green A strain a was isolated from taxonomically unresolved filamentous Ulva collected in an intertidal area Oslo fjord. Its euryhaline intestinalis same subsequently tested under salinities 0, 15, 30 parts per thousand (ppt). The isolate readily infected U. decimated filaments at 0 ppt. Mycelium...