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n. pl. phy·log·e·nies
1. The evolutionary development and history of a species or trait of a species or of a higher taxonomic grouping of organisms: the phylogeny of Calvin cycle enzymes. Also called phylogenesis.
2. A model or diagram delineating such an evolutionary history: a molecular phylogeny of the annelids.
3. A similar model or diagram delineating the development of a cultural feature.

[Greek phūlon, race, class; see phylum + -geny.]

phy′lo·gen′ic (-jĕn′ĭk) adj.


(faɪˈlɒdʒɪnɪ) or


n, pl -nies or -geneses (-ˈdʒɛnɪˌsiːz)
(Biology) biology the sequence of events involved in the evolution of a species, genus, etc. Compare ontogeny
[C19: from phylo- + -geny]
phylogenic, phylogenetic adj


(faɪˈlɒdʒ ə ni)

1. the development or evolution of a particular group of organisms.
2. the evolutionary history of a group of organisms, esp. as depicted in a family tree.
Compare ontogeny.
phy•log′e•nist, n.


the history of the development of a plant, animal, or racial type. — phylogenist, n. — phylogenetic, adj.
See also: Evolution
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phylogeny - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organismsphylogeny - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
Scopes trial - a highly publicized trial in 1925 when John Thomas Scopes violated a Tennessee state law by teaching evolution in high school; Scopes was prosecuted by William Jennings Bryan and defended by Clarence Darrow; Scopes was convicted but the verdict was later reversed
biological science, biology - the science that studies living organisms
anamorphism, anamorphosis - the evolution of one type of organism from another by a long series of gradual changes
anthropogenesis, anthropogeny - the evolution or genesis of the human race
emergent evolution - the appearance of entirely new properties at certain critical stages in the course of evolution
macroevolution - evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups
microevolution - evolution resulting from small specific genetic changes that can lead to a new subspecies
biological process, organic process - a process occurring in living organisms
speciation - the evolution of a biological species
References in periodicals archive ?
The usefulness of behavior for phylogeny estimation: levels of homoplasy in behavioral and morphological characters.
We present an analysis of this group of hamsters using retrotransposons as phylogenetic markers to further assess the modified phylogeny.
Molecular phylogeny of horsetails (Equisetum) including chloroplast atpB sequences.
It combines pattern-based analysis with comparative genomics and enables visualization of genes in the context of regulation, gene expression data, phylogeny, chromosomal neighborhoods and identification of natural gene fusions.
The phylogeny that was used includes grass species with diploid genomes of known DNA content and integrates results from a recent and comprehensive phylogenetic study based on macromorphology, anatomy, biochemistry, and the sequence of chloroplast and nuclear genes (Grass Phylogeny Working Group, 2001] with inferences from RNA structure and large-scale chromosomal rearrangements (Caetano-Anolles, 2005).
In addition to elucidating evolutionary relationships within the order, the phylogeny will serve as to tool for examination of epitope regions of the glycoprotein by identifying independent viruses for comparison.
An initial effort at establishing a molecular-based phylogeny of the group examined the 1101-base pair trnL-trnF region of chloroplast DNA, a highly variable region in other genera of legumes.
This project shows a new approach to orangutan phylogeny with focus on their long calls.
For the phylogeny aspect, we used the information proposed by Frost (1930, 1931), Kribs (1935, 1937) and Metcalfe and Chalk (1950, 1983).
Knoll gives a masterful summary of the evolutionary history of biomineralization, outlining the origins, the phylogeny and fossil record of shells, spicules, endo- and exoskeletons, and so on.
A survey was given to all students after the unit on classification and phylogeny was completed to measure student satisfaction.
Part I, which covered the phylogeny of the facial nerve and related structures, appeared in the September issue.