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Article

Evidence for Faster X Chromosome Evolution in Spiders.

Molecular biology and evolution - 1 Jun 2019

Bechsgaard Jesper, Schou Mads Fristrup, Vanthournout Bram, Hendrickx Frederik, Knudsen Bjarne, Settepani Virginia, Schierup Mikkel Heide, Bilde Trine

Abstract excerpt

In species with chromosomal sex determination, X chromosomes are predicted to evolve faster than autosomes because of positive selection on recessive alleles or weak purifying selection. We investigated X chromosome evolution in Stegodyphus spiders that differ in mating system, sex ratio, and population dynamics. We assigned scaffolds to X chromosomes and autosomes using a novel method based on flow cytometry of...

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Identifiers

PMID: 30912801
DOI: 10.1093/molbev/msz074
PMCID: PMC6526907

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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