Related Experiment Video
Updated: Nov 15, 2025

08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
16.2K
High-throughput methods for efficiently building massive phylogenies from natural history collections
Ryan A Folk1, Heather R Kates2, Raphael LaFrance2
1Department of Biological Sciences Mississippi State University Mississippi State Mississippi USA.
Applications in Plant Sciences
|March 8, 2021
Summary
A new high-throughput method enables large-scale phylogenomic studies using herbarium specimens. This approach unlocks vast taxonomic sampling potential for exploring the tree of life with numerous genetic loci.
Area of Science:
- Evolutionary Biology
- Genomics
- Bioinformatics
Background:
- Phylogenetic studies are often limited by small datasets from public repositories.
- A scalable protocol for phylogenomic sampling from specimens is lacking.
Purpose of the Study:
- To develop and present a high-throughput, collections-based sampling-to-sequencing protocol.
- To enable broader exploration of the tree of life using numerous genetic loci.
Main Methods:
- Integrated Specimen-to-Laboratory Information Management System (SLIMS) for workflow tracking.
- QR codes and taxonomic database for efficient specimen sampling and data capture.
- High-throughput DNA extraction and sequencing protocol for herbarium samples.
Main Results:
- Applied workflow to ~15,000 species.
- Generated a dataset with ~50% taxonomic representation of the nitrogen-fixing clade of angiosperms.
Conclusions:
- The protocol is scalable to thousands of species and adaptable to other collection types.
- Herbaria are valuable, underutilized resources for large-scale taxonomic sampling.
Related Concept Videos
Evolutionary Relationships through Genome Comparisons
6.6K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.6K
Gene Evolution - Fast or Slow?
7.7K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.7K
Gene Evolution - Fast or Slow?
3.2K
3.2K
Phylogenetic Trees
48.6K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
48.6K
Phylogeny
55.8K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
55.8K
Modern Molecular Taxonomy
354
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
354

