S. Evan Staton

S. Evan Staton
University of British Columbia - Vancouver | UBC · Department of Botany

PhD

About

12
Publications
4,779
Reads
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1,160
Citations
Citations since 2016
5 Research Items
1075 Citations
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
2016201720182019202020212022050100150200250
Additional affiliations
August 2008 - March 2014
University of Georgia
Position
  • Research Assistant
August 2006 - April 2008
Miami University
Position
  • PhD Student

Publications

Publications (12)
Article
Full-text available
The transposable element (TE) content of the genomes of plant species varies from near zero in the genome of Utricularia gibba to more than 80 % in many species. It is not well understood whether this variation in genome composition results from common mechanisms or stochastic variation. The major obstacles to investigating mechanisms of TE evoluti...
Article
Full-text available
Motivation: Transposable elements (TEs) can be found in virtually all eukaryotic genomes and have the potential to produce evolutionary novelty. Despite the broad taxonomic distribution of TEs, the evolutionary history of these sequences is largely unknown for many taxa due to a lack of genomic resources and identification methods. Given that most...
Article
Full-text available
Aside from polyploidy, transposable elements are the major drivers of genome size increases in plants. Thus, understanding the diversity and evolutionary dynamics of transposable elements in sunflower (Helianthus annuus L.), especially given its large genome size (∼3.5 Gb) and the well-documented cases of amplification of certain transposons within...
Article
Full-text available
The origin of new diploid, or homoploid, hybrid species is associated with rapid genomic restructuring in the hybrid neospecies. This mode of speciation has been best characterized in wild sunflower species in the genus Helianthus, where three homoploid hybrid species (H. anomalus, H. deserticola, and H. paradoxus) have independently arisen via anc...
Preprint
Crop wild relatives represent valuable sources of alleles for crop improvement, including adaptation to climate change and emerging diseases. However, introgressions from wild relatives might have deleterious effects on desirable traits, including yield, due to linkage drag. Here we comprehensively analyzed the genomic and phenotypic impacts of wil...
Article
Full-text available
Species often include multiple ecotypes that are adapted to different environments¹. However, it is unclear how ecotypes arise and how their distinctive combinations of adaptive alleles are maintained despite hybridization with non-adapted populations2,3,4. Here, by resequencing 1,506 wild sunflowers from 3 species (Helianthus annuus, Helianthus pe...
Article
Species often include multiple ecotypes that are adapted to different environments. But how do ecotypes arise, and how are their distinctive combinations of adaptive alleles maintained despite hybridization with non-adapted populations? Re-sequencing of 1506 wild sunflowers from three species identified 37 large (1-100 Mbp), non-recombining haploty...
Article
Full-text available
Advances in deciphering the functional architecture of eukaryotic genomes have been facilitated by recent breakthroughs in sequencing technologies, enabling a more comprehensive representation of genes and repeat elements in genome sequence assemblies, as well as more sensitive and tissue-specific analyses of gene expression. Here we show that PacB...
Article
Full-text available
The domesticated sunflower, Helianthus annuus L., is a global oil crop that has promise for climate change adaptation, because it can maintain stable yields across a wide variety of environmental conditions, including drought. Even greater resilience is achievable through the mining of resistance alleles from compatible wild sunflower relatives, in...
Conference Paper
We present version 1.4 of the reference sunflower genome and discuss the diverse genetic resources available in this valuable oilseed crop. Our 3.6 Gbp reference genome consists of seventeen pseudomolecules representing the nuclear chromosomes of sunflower, complete cytoplasmic genomes, and a representative repeat library. The pseudomolecules were...
Article
Full-text available
• Premise of the study: The Compositae (Asteraceae) are a large and diverse family of plants, and the most comprehensive phylogeny to date is a meta-tree based on 10 chloroplast loci that has several major unresolved nodes. We describe the development of an approach that enables the rapid sequencing of large numbers of orthologous nuclear loci to f...
Conference Paper
The Asteraceae is the largest family of flowering plants and contains many agronomically important crop and ornamental species. Given a global distribution and adaptation to many different environments, the Asteraceae represent an important system for investigating the relative importance of different evolutionary forces that contribute to adaptive...

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