phylogeny
/,failə'dʤenisis/ Cách viết khác : (phylogeny) /fai'lɔdʤəni/
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Definition
- Noun:
- The evolutionary history and development of a species or higher taxonomic group: In biology, "phylogeny" refers to the sequence of events and the pattern of relationships among species or groups of organisms over evolutionary time, tracing their descent from a common ancestor.
Usage
- "Phylogeny" is a scientific term used primarily in the fields of evolutionary biology, systematics, and paleontology. It describes the branching pattern of evolutionary relationships.
- It is often discussed in contrast to "ontogeny," which is the developmental history of an individual organism.
- The term is central to constructing phylogenetic trees or cladograms, which are diagrams depicting these evolutionary relationships.
Examples
- Noun:
- The phylogeny of mammals shows they diverged from reptile-like ancestors.
- Scientists use DNA sequencing to reconstruct the phylogeny of flowering plants.
- Understanding the phylogeny of a group helps classify organisms based on shared ancestry.
Advanced Usage
- "Molecular phylogeny": A phylogeny reconstructed using molecular data like DNA or protein sequences.
- Molecular phylogeny has revolutionized our understanding of bird evolution.
- "Phylogeny reconstruction": The process of inferring evolutionary relationships.
- Phylogeny reconstruction is a complex task that requires sophisticated computational methods.
Variants and Related Words
- Phylogenetic (adj): Relating to or based on evolutionary development or phylogeny.
- Phylogenetic analysis supports the new classification.
- Phylogenetics (n): The study of evolutionary relationships among species.
- He specializes in the field of phylogenetics.
- Phylogenesis (n): A synonym for phylogeny, often used interchangeably.
- The phylogenesis of the group is still debated.
Synonyms
- Evolutionary history: The sequence of evolutionary changes over time.
- Descent: Lineage or derivation from an ancestor.
Related Terms and Concepts
- Cladistics: A method of classification based on phylogeny that groups organisms into clades (groups consisting of an ancestor and all its descendants).
- Taxonomy: The science of naming, defining, and classifying organisms, which is informed by phylogeny.
- Common ancestor: An ancestral species from which later species evolved, a key concept in any phylogeny.
Noun
- (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms