Sexual isolation and extreme morphological divergence in the Cumana guppy: a possible case of incipient speciation.

doi:10.1111/j.1420-9101.2004.00788.x

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Article

Sexual isolation and extreme morphological divergence in the Cumana guppy: a possible case of incipient speciation.

Journal of evolutionary biology - 1 Nov 2004

Alexander H J, Breden F

Abstract excerpt

Theory predicts that sexual selection can promote the evolution of reproductive isolation and speciation. Those cases in which sexual selection has led to speciation should be characterized by significant differentiation in male display traits and correlated female preferences in the absence of post-zygotic isolation, accompanied by little genetic or other morphological differentiation. Previous evidence...

Topics

Animals
Base Sequence
Body Weights and Measures
Cluster Analysis
DNA, Mitochondrial
Demography
Female
Genetic Variation
Geography
Guyana
Male
Molecular Sequence Data

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Phylogeny

Pigmentation

Poecilia

Reproduction

Selection, Genetic

Sequence Analysis, DNA

Source

Open in PubMed

Identifiers

PMID: 15525409
DOI: 10.1111/j.1420-9101.2004.00788.x

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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