Increased divergence but reduced variation on the Z chromosome relative to autosomes in Ficedula flycatchers: differential introgression or the faster‐Z effect?

• Published in: Ecology and evolution Vol. 2; no. 2; pp. 379 - 396
• Main Authors: Hogner, Silje, Sæther, Stein A., Borge, Thomas, Bruvik, Torbjørn, Johnsen, Arild, Sætre, Glenn‐Peter
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.02.2012; John Wiley & Sons, Inc; Wiley
• Subjects: Allopatry; Birds; Chromosomes; congeneric birds; Divergence; Evolution & development; faster‐Z hypothesis; Females; Ficedula; Gene flow; Genes; Genomes; Hypotheses; Males; Mutation; nuclear introns; Original Research; Polymorphism; Population; Z chromosome polymorphism; Z chromosomes; Italy; Spain; congeneric birds; Z chromosome polymorphism; nuclear introns; Allopatry; faster-Z hypothesis

Recent multilocus studies of congeneric birds have shown a pattern of elevated interspecific divergence on the Z chromosome compared to the autosomes. In contrast, intraspecifically, birds exhibit less polymorphism on the Z chromosome relative to the autosomes. We show that the four black‐and‐white...