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Plant Taxonomy and Phylogenetics
Research Guide
What is Plant Taxonomy and Phylogenetics?
Plant taxonomy and phylogenetics is the scientific discipline that discovers, names, classifies, and identifies plants by integrating evidence from morphology, genetics, and inferred evolutionary relationships (phylogenies).
The provided literature cluster on plant taxonomy and phylogenetics contains 289,678 works and emphasizes grasses (Poaceae), including apomixis, C4 photosynthesis, polyploidy, and bamboo evolutionary history. "Isolation of plant DNA from fresh tissue" (1990) is a foundational laboratory method that underpins much of modern plant phylogenetics by enabling routine DNA extraction from plant tissues. "Phylogeny.fr: robust phylogenetic analysis for the non-specialist" (2008) describes an end-to-end platform that chains core steps of phylogenetic inference, from homolog identification and multiple sequence alignment to tree reconstruction and visualization.
Topic Hierarchy
Research Sub-Topics
Molecular Phylogeny of Poaceae
This sub-topic examines the evolutionary relationships among grass species using molecular data such as DNA sequences from nuclear and chloroplast genomes. Researchers develop phylogenetic trees to resolve subfamily and tribal classifications within Poaceae.
Genetic Control of Apomixis in Grasses
This sub-topic investigates the molecular mechanisms and genetic loci regulating apomixis, an asexual reproductive mode bypassing meiosis. Researchers identify key genes and pathways in apomictic grass species like Paspalum and Eragrostis.
Evolution of C4 Photosynthesis in Grasses
This sub-topic explores the anatomical, biochemical, and genetic transitions from C3 to C4 photosynthesis pathways in Poaceae. Researchers trace the multiple independent origins of C4 using fossil records and comparative genomics.
Polyploidy and Genome Evolution in Poaceae
This sub-topic studies the role of whole-genome duplication events in grass speciation and adaptation. Researchers analyze polyploid genomes in tribes like Andropogoneae and their impacts on fertility and morphology.
Phylogeny and Evolution of Bamboos
This sub-topic focuses on the systematics, monophyly, and diversification of Bambusoideae within Poaceae using multi-locus phylogenies. Researchers investigate reproductive syndromes and biogeographic histories of woody and herbaceous bamboos.
Why It Matters
Plant taxonomy and phylogenetics directly support agriculture, conservation, and plant-based bioeconomies by providing stable names and evolutionary frameworks that make biodiversity data comparable across studies and institutions. In grasses, phylogenetic and genomic resources can connect crop improvement questions (food, feed, fibre, and fuel) to evolutionary history: "The Sorghum bicolor genome and the diversification of grasses" (2009) reported an initial analysis of an approximately 730-megabase Sorghum bicolor genome and placed approximately 98% of genes in chromosomal context, linking a major crop’s genome to broader grass diversification. Methodologically, accessible workflows lower barriers for non-specialists to generate trees that inform classification and comparative studies; for example, Dereeper et al. (2008) described "Phylogeny.fr: robust phylogenetic analysis for the non-specialist" as a platform that transparently chains sequence homology search, alignment, phylogenetic reconstruction, and graphical display. At the intraspecific scale, Avise et al. (1987) in "INTRASPECIFIC PHYLOGEOGRAPHY: The Mitochondrial DNA Bridge Between Population Genetics and Systematics" framed how genealogical patterns can bridge population genetics and systematics, which matters for delimiting species and identifying evolutionarily distinct lineages relevant to management and conservation decisions.
Reading Guide
Where to Start
Start with Doyle (1990), "Isolation of plant DNA from fresh tissue," because DNA extraction is a prerequisite for most modern phylogenetic workflows and the paper is explicitly method-focused.
Key Papers Explained
A practical workflow can be built by connecting Doyle (1990) "Isolation of plant DNA from fresh tissue" (sample-to-DNA) to Dereeper et al. (2008) "Phylogeny.fr: robust phylogenetic analysis for the non-specialist" (DNA sequences-to-tree via chained alignment and inference steps). "MacClade 4.0: analysis of phylogeny and character evolution" (2001) complements these by focusing on interactive analysis of phylogeny and character evolution using molecular and morphological data. For evolutionary interpretation across space and within species, Avise et al. (1987) "INTRASPECIFIC PHYLOGEOGRAPHY: The Mitochondrial DNA Bridge Between Population Genetics and Systematics" provides the conceptual bridge to systematics, while Paterson et al. (2009) "The Sorghum bicolor genome and the diversification of grasses" exemplifies how genome-scale data can anchor comparative questions in a major plant family.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Advanced work in this area increasingly requires integrating genome-scale datasets with transparent, reproducible phylogenetic pipelines and explicit treatment of character evolution and geographic structure. Within the provided list, the methodological direction is represented by workflow chaining in Dereeper et al. (2008) and character-evolution interrogation in "MacClade 4.0: analysis of phylogeny and character evolution" (2001), while the data scale is exemplified by Paterson et al. (2009) and its approximately 730-megabase genome analysis with approximately 98% of genes placed in chromosomal context.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Isolation of plant DNA from fresh tissue | 1990 | Focus eBooks | 10.8K | ✕ |
| 2 | MacClade 4.0: analysis of phylogeny and character evolution | 2001 | Choice Reviews Online | 5.6K | ✕ |
| 3 | Phylogeny.fr: robust phylogenetic analysis for the non-specialist | 2008 | Nucleic Acids Research | 4.7K | ✓ |
| 4 | Phylogeography: the history and formation of species | 2000 | Choice Reviews Online | 4.6K | ✕ |
| 5 | The Mineral Nutrition of Wild Plants | 1980 | Annual Review of Ecolo... | 4.2K | ✕ |
| 6 | Phylogeography | 2000 | Harvard University Pre... | 3.4K | ✕ |
| 7 | INTRASPECIFIC PHYLOGEOGRAPHY: The Mitochondrial DNA Bridge Bet... | 1987 | Annual Review of Ecolo... | 3.3K | ✕ |
| 8 | Plant succession; an analysis of the development of vegetation, | 1916 | Carnegie Institution o... | 3.2K | ✕ |
| 9 | The Sorghum bicolor genome and the diversification of grasses | 2009 | Nature | 3.1K | ✓ |
| 10 | Xylem Structure and the Ascent of Sap | 2002 | Springer series in woo... | 3.1K | ✕ |
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Code & Tools
`piqtree`(pronounced 'pie-cue-tree') is a library which allows you to use IQ-TREE directly from Python! The interface with Python is through cogent...
DendroPy is a Python library for phylogenetic computing. It provides classes and functions for the simulation, processing, and manipulation of phyl...
# Documentation A LaTeX documentation file is ./doc/summarizing-taxonomy-plus-trees.tex periodically, that is compiled and posted.
interact with the software produced by the [Open Tree of Life project] 1 . Specifically, to: 1. interact with a local version of the [phylesystem] ...
## Repository files navigation # SuchTree A Python library for doing fast, thread-safe computations with phylogenetic trees. ### Release notes ...
Recent Preprints
Global phylogeny and taxonomy of Artemisia
Developing robust phylogenies and comprehensive taxonomies for big plant genera is crucial for unlocking plant-derived solutions to global sustainability challenges.*Artemisia*, a big genus compris...
Reticulate evolutionary history underpins a revised generic circumscription of Paphiopedilum (Orchidaceae): insights from integrative phylogenomics and historical biogeography
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Latest Developments
Recent developments in plant taxonomy and phylogenetics include advancements in molecular phylogenomics, such as the complete genus-level phylogenomic analysis of the family Annonaceae, which has refined subtribal classifications and clarified relationships within the family (Wiley, Springer, 2024; Nature, 2024), and the use of targeted nuclear sequence capture to revise classifications and investigate trait evolution in families like Connaraceae (Springer, 2024). Additionally, the rise of angiosperms has been explored through phylogenomics, revealing complex evolutionary histories and diversification surges (Nature, 2024; Nature, 2024). Technological innovations, including machine learning for species identification and digitization efforts, are also transforming taxonomy (Natural Sciences, 2026).
Sources
Frequently Asked Questions
What is the difference between plant taxonomy and plant phylogenetics?
Plant taxonomy focuses on naming, describing, identifying, and classifying plants, while plant phylogenetics focuses on inferring evolutionary relationships among plants using characters such as DNA sequences and morphology. In practice, phylogenies provide hypotheses of relationship that can be used to revise classifications and delimit taxa in a way that reflects shared ancestry.
How do researchers obtain DNA suitable for plant phylogenetic studies?
A widely used starting point is the extraction of DNA from plant tissues using established protocols. Doyle (1990) in "Isolation of plant DNA from fresh tissue" provided a method that enabled routine recovery of plant DNA from fresh material, supporting downstream amplification, sequencing, and comparative analyses.
How do non-specialists run a complete phylogenetic analysis workflow?
Dereeper et al. (2008) in "Phylogeny.fr: robust phylogenetic analysis for the non-specialist" described a web platform that chains key steps of phylogenetic analysis. Their abstract specifies the workflow components as homologous sequence identification, multiple alignment, phylogenetic reconstruction, and graphical representation of the inferred tree.
Which software supports interactive analysis of phylogeny and character evolution, including morphology?
"MacClade 4.0: analysis of phylogeny and character evolution" (2001) describes a program and manual providing theory and tools for graphic and interactive analysis of molecular and morphological data, phylogeny, and character evolution. The abstract emphasizes flexibility for systematists and evolutionary biologists analyzing phylogenies and characters.
How does phylogeography connect plant systematics to population-level processes?
Avise et al. (1987) in "INTRASPECIFIC PHYLOGEOGRAPHY: The Mitochondrial DNA Bridge Between Population Genetics and Systematics" explicitly framed intraspecific genealogical patterns as a bridge between population genetics and systematics. "Phylogeography: the history and formation of species" (2000) and Avise (2000) in "Phylogeography" further situate phylogeography as a way to interpret the history and formation of species through spatial patterns of lineages.
Which high-impact example links grass genomics to diversification and classification questions?
Paterson et al. (2009) in "The Sorghum bicolor genome and the diversification of grasses" presented an initial analysis of an approximately 730-megabase Sorghum bicolor genome and reported placing approximately 98% of genes in chromosomal context. This kind of genome-scale resource supports comparative analyses across grasses that can inform hypotheses about diversification and trait evolution relevant to classification.
Open Research Questions
- ? How can grass (Poaceae) classifications be revised to reconcile evidence from genome-scale resources such as "The Sorghum bicolor genome and the diversification of grasses" (2009) with existing character-based systems analyzed in tools like "MacClade 4.0: analysis of phylogeny and character evolution" (2001)?
- ? Which analytical choices in chained pipelines like "Phylogeny.fr: robust phylogenetic analysis for the non-specialist" (2008) most strongly influence inferred relationships in large, species-rich plant groups, and how should uncertainty be represented in taxonomic decisions?
- ? How can intraspecific lineage structure emphasized by Avise et al. (1987) in "INTRASPECIFIC PHYLOGEOGRAPHY: The Mitochondrial DNA Bridge Between Population Genetics and Systematics" be translated into reproducible criteria for species delimitation and rank assignment in plant taxonomy?
- ? How should researchers integrate molecular and morphological character evolution analyses—of the type supported by "MacClade 4.0: analysis of phylogeny and character evolution" (2001)—when molecular and morphological signals conflict in plant clades with complex histories (for example, those involving polyploidy noted in the provided topic description)?
Recent Trends
Across the provided cluster description, recent emphasis is on grasses (Poaceae) and trait-linked evolutionary questions such as apomixis, C4 photosynthesis, polyploidy, and bamboo evolutionary history, with phylogenetic inference serving as the organizing framework for classification.
The scale of the literature is large (289,678 works), and highly cited methods and platforms—Doyle "Isolation of plant DNA from fresh tissue" and Dereeper et al. (2008) "Phylogeny.fr: robust phylogenetic analysis for the non-specialist"—indicate sustained reliance on standardized lab protocols and accessible, chained computational workflows.
1990Genome-enabled comparative systematics is exemplified by Paterson et al. "The Sorghum bicolor genome and the diversification of grasses," which reported an approximately 730-megabase genome and approximately 98% of genes placed in chromosomal context, supporting diversification questions at the family scale.
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