polygení

Polygení is a term derived from the Greek roots poly- (“many”) and genos or -geny (“origin” or “birth”). It is used in scholarly contexts to denote the idea of multiple origins or sources of a given phenomenon. The spelling with an acute on the final i is a stylistic variant found in some languages, but the underlying concept remains the same.

In biology, polygeny is most often encountered in discussions of inheritance: many genes contribute to a single trait, producing continuous variation. This form of genetic architecture contrasts with monogenic traits, which are governed by a single gene. The common modern term is polygenic inheritance or a polygenic trait.

In anthropology, polygeny (often called polygenism) referred to the historical claim that different human races have separate origins. This view was used in the past to justify racial hierarchies but has been discredited by modern science, which supports a single origin for Homo sapiens with later diversification and interbreeding.

In other fields, polygeny can denote multiple sources of ideas, languages, or cultures, though the term is less common in contemporary usage. Overall, polygeny describes the presence or assertion of multiple origins across disciplines, with the specific meaning varying by context.