Repeated Mitochondrial Capture With Limited Genomic Introgression in a Lizard Group DOI Creative Commons

Wesley J. Read,

Rebecca J. Laver, Ching C. Lau

et al.

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

ABSTRACT Mitochondrial introgression is common among animals and often first identified through mitonuclear discordance—discrepancies between evolutionary relationships inferred from mitochondrial DNA (mtDNA) nuclear (nuDNA). Over recent decades, genomic data have also revealed extensive in many animal groups, with implications for genetic phenotypic diversity. However, the extent to which mtDNA corresponds nuDNA varies. Here, we investigated historical Gehyra nana ‐occidentalis clade, a complex group of Australian geckos documented cases discordance suggestive repeated introgression. We hypothesised that this clade reflects substantial Despite evidence introgression, however, found little no using exon capture genome‐wide single nucleotide polymorphism (SNP) data. gene flow at modern contact zones detected only early generation hybrid. Unsurprisingly, given these results, transgressive, intermediate, or more variable morphological phenotypes taxa introgressed mtDNA. These findings suggest hybridisation system has, least some cases, resulted This pattern aligns other studies showing limited discordance, highlighting potentially broader trend radiations.

Language: Английский

Repeated Mitochondrial Capture With Limited Genomic Introgression in a Lizard Group DOI Creative Commons

Wesley J. Read,

Rebecca J. Laver, Ching C. Lau

et al.

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

ABSTRACT Mitochondrial introgression is common among animals and often first identified through mitonuclear discordance—discrepancies between evolutionary relationships inferred from mitochondrial DNA (mtDNA) nuclear (nuDNA). Over recent decades, genomic data have also revealed extensive in many animal groups, with implications for genetic phenotypic diversity. However, the extent to which mtDNA corresponds nuDNA varies. Here, we investigated historical Gehyra nana ‐occidentalis clade, a complex group of Australian geckos documented cases discordance suggestive repeated introgression. We hypothesised that this clade reflects substantial Despite evidence introgression, however, found little no using exon capture genome‐wide single nucleotide polymorphism (SNP) data. gene flow at modern contact zones detected only early generation hybrid. Unsurprisingly, given these results, transgressive, intermediate, or more variable morphological phenotypes taxa introgressed mtDNA. These findings suggest hybridisation system has, least some cases, resulted This pattern aligns other studies showing limited discordance, highlighting potentially broader trend radiations.

Language: Английский

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