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APG system: History, Groups & Overview

The APG system (Angiosperm Phylogeny Group system) of plant classification is the first version of a modern, mostly molecular-based, system of plant taxonomy. Published in 1998 by the Angiosperm Phylogeny Group, it was replaced by the improved APG II in 2003, APG III system in 2009 and APG IV system in 2016.

Language: English [EN]
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APG system topic overview

The analysis highlights History, Groups and Overview as prominent areas in the source structure around APG system.

Related topics
540
Source areas
3
Connected nodes
543
Extracted relationships
15
Concept neighborhoods
20
Bridge connections
543

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Groups · 523 topics
History · 12 topics
Overview · 5 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Groups

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How APG system connects Entity context

The extracted context around APG system shows recurring relationship patterns in the source. For example, APG system → Although, APG, DNA, Higher, It, The. Use these groups to spot repeated connection types before inspecting the individual relationships.

APG system

Top relations

related to history · 6
APG system → Although, APG, DNA, Higher, It, The

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

system apg ii eudicots families angiosperm phylogeny group groups iii iv monocots rosids asterids family classification 1998 2003 2009 2016

APG system relationships Subject–Predicate–Object triples

TTTA extracted 15 structured relationships around APG system. Examples in this analysis include monocots → instance of → with names and APG system → related to history → The. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
monocotsinstance ofwith names0.80text
eudicotsinstance ofwith names0.80text
rosidsinstance ofwith names0.80text
asterids.The APG system was superseded in 2003 by a revisioninstance ofwith names0.80text
the APG II systeminstance ofwith names0.80text
in 2009 by a next revisioninstance ofwith names0.80text
the APG III systeminstance ofwith names0.80text
and then in 2016 by a further revisioninstance ofwith names0.80text
the APG IV systeminstance ofwith names0.80text
APG systemrelated to historyThe0.60section
APG systemrelated to historyAPG0.60section
APG systemrelated to historyDNA0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around APG system bring nearby vocabulary together. In this analysis, examples include System, Ii and Angiosperm. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • APG system
    • System
    • Ii
    • Angiosperm
    • Group
    • Iii
    • Iv
    • Phylogeny
    • Classification
    • Level
    • Families
    • Family
    • Groups
  • apg system
    • System
    • Ii
    • Angiosperm
    • Group
    • Iii
    • Iv
    • Phylogeny
    • Families
    • Classification
    • Level
    • Unusual
    • Family
  • apg ii
    • System
    • Iii
    • Iv
    • Families
    • Ii
    • Angiosperm
    • Group
    • Phylogeny
    • Angiosperms
    • Commelinoids
    • Core
    • Euasterids
  • apg iii system
    • Iv
    • System
    • Ii
    • Phylogeny
    • Angiosperm
    • Group
    • Iii
    • Families
    • Classification
    • Level
    • Unusual
    • Family
  • apg iv system
    • System
    • Ii
    • Phylogeny
    • Angiosperm
    • Group
    • Iii
    • Iv
    • Families
    • Classification
    • Level
    • Unusual
    • Family
  • eurosids ii
    • Euasterids
    • Orders
    • Monocots
    • Rosids
    • Iii
    • Iv
    • Families
    • System
    • Angiosperms
    • Commelinoids
    • Core
    • Eurosids
  • euasterids ii
    • Eurosids
    • Orders
    • Monocots
    • Rosids
    • Iii
    • Iv
    • Eudicots
    • Families
    • System
    • Angiosperms
    • Commelinoids
    • Core
  • core eudicots
    • Euasterids
    • Eurosids
    • Orders
    • Asterids
    • Monocots
    • Rosids
    • Groups
    • Angiosperms
    • Clades
    • Commelinoids
    • Core
    • Eudicots

Connections between topic areas Semantic bridges

For APG system, one of the stronger structural bridges in this analysis connects APG system with Groups. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
APG system — Groups · splits 20 ⟂ 524
APG system — History · splits 531 ⟂ 13
APG system — Overview · splits 538 ⟂ 6

Map overview Semantic statistics

APG system

Nodes544
Edges543
Triples15
Avg. degree2
Density0.003676
Components1

Source & methodology

TTTA analyzes the structure around APG system to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Groups & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — APG system · EN edition · Analysis: TopicsToTalkAbout

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