Anagenesis
Definition
A macroevolutionary mechanism or process characterized by the linear and progressive evolution of a single phyletic lineage, wherein an entire species undergoes structural and genetic transformations accumulated over time, gradually transforming into a new species without branching. This evolutionary phenomenon, opposite to cladogenesis, involves the complete replacement of the old gene pool through continuous adaptation to the environment, leading to the emergence of superior morphological and physiological traits.
Bilingual Equivalents
- Anagenesis
- Phyletic evolution
Grammatical & Source Details
| Inflection Type | Feminine noun, regular structural plural variations with standard morpho-syntactic shifts. |
| Formation | Scientific loanword via French 'anagénèse', rooted in ancient Greek combining 'ana-' (upward, progressive) and 'genesis' (origin). |
| Spelling / Pronunciation | [a.na.d͡ʒe.ˈne.zə] |
| Source | The Encyclopedia of Evolutionary Biology and Systematics Standards |
Contextual Usage Examples
RO: Paleontologii folosesc fosilele de tranziție pentru a demonstra existența unui proces lung de anageneză la această familie de mamifere.
EN: Paleontologists use transitional fossils to demonstrate the existence of a long process of anagenesis in this family of mammals.
RO: Spre deosebire de cladogeneză, prin anageneză nu crește numărul total de specii contemporane din ecosistem.
EN: Unlike cladogenesis, through anagenesis the total number of contemporary species in the ecosystem does not increase.
RO: Analiza genetică structurală sugerează că transformarea speciei ancestrale s-a realizat prin anageneză pură.
EN: The structural genetic analysis suggests that the transformation of the ancestral species was achieved through pure anagenesis.
Idioms & Phrases
Anageneză filetică / Phyletic anagenesis
RO: Acumularea treptată de mutații adaptative în interiorul aceleiași linii de descendență pe parcursul erelor geologice.
EN: The gradual accumulation of adaptive mutations within the same line of descent over geological eras.
Rată de anageneză / Rate of anagenesis
RO: Viteza structurală cu care caracterele morfologice ale unei populații se modifică sub presiunea selecției naturale.
EN: The structural speed at which the morphological traits of a population modify under the pressure of natural selection.
Model de tip anageneză / Anagenesis model
RO: Schemă teoretică în biologia evoluționistă care cartografiază transformarea directă a unei specii fără evenimente de izolare geografică.
EN: A theoretical schema in evolutionary biology mapping the direct transformation of a species without geographical isolation events.
Latest Contextual News
No recent news found for this topic.