Definition of phylogenesis in English:


Line breaks: phylo|gen¦esis
Pronunciation: /ˌfʌɪlə(ʊ)ˈdʒɛnɪsɪs


[mass noun] Biology
The evolutionary development and diversification of a species or group of organisms, or of a particular feature of an organism. Compare with ontogenesis.
More example sentences
  • Later, during phylogenesis, phagocytosis of other prokaryotic cell types allowed the acquisition of plastids and mitochondria to form the contemporary eukaryotic cells.
  • Ontogenesis, we were taught, repeats phylogenesis - or, if you've been out of school too long, the development of the individual organism reiterates the evolution of the species.


late 19th century: from Greek phulon, phulē 'race, tribe' + genesis.



Pronunciation: /-dʒɪˈnɛtɪk/
More example sentences
  • The mode of dealing with ancestral taxa when using the phylogenetic method is a difficult issue.
  • Classification, however, is only one aspect of the much larger field of phylogenetic systematics.
  • We use the resultant phylogenetic hypothesis to explore the evolution of jaw ontogeny.


Pronunciation: /-dʒɪˈnɛtɪk(ə)li/
More example sentences
  • However, they are by no means limited to the same prokaryotic species and have been shown to occur even between phylogenetically distant prokaryotes.
  • It appears possible that intratentacular budding may have arisen in phylogenetically distant taxa using very similar if not identical sets of genes and pathways.
  • The above analysis identified eight phylogenetically distinct taxa in the three species, three of which are represented by only one isolate.

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Pronunciation: dəˈmôrəˌlīz
cause (someone) to lose confidence or hope; dispirit