English

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Etymology

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From ortho- +‎ selection, originally coined by Ludwig Plate in 1913.

Noun

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orthoselection (uncountable)

  1. (evolutionary theory, historical) The hypothesis that posits that orthogenesis works by means of natural selection.
  2. (genetics) The acquisition of a common series of rearrangements within a genetic lineage.
    • "Chromosomal Changes and Stasis in Marine Fish Groups" in Fish Cytogenetics, Wagner Franco Molina, p. 83:
      Therefore, there is evidence that orthoselection (sensu White, 1973) takes place in a karyotypic format in some lineages and particular formats in others, and could be associated with specific adaptive values that have obvious evolutionary connotations.