Recent hybrids recapitulate ancient hybrid outcomes

Autor: Zachariah Gompert, C. Alex Buerkle, Matthew L. Forister, Chris C. Nice, James A. Fordyce, Lauren K. Lucas, Samridhi Chaturvedi
Přispěvatelé: Nature Publishing Group
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
0301 basic medicine
Population genetics
Speciation
Ecology and Evolutionary Biology
Genome
Insect
General Physics and Astronomy
Genome
01 natural sciences
lcsh:Science
Phylogeny
media_common
0303 health sciences
education.field_of_study
Multidisciplinary
Sex Chromosomes
biology
Genomics
Lycaeides melissa
Butterflies
Gene Flow
Genetic Speciation
Science
media_common.quotation_subject
Population
Introgression
010603 evolutionary biology
Polymorphism
Single Nucleotide
General Biochemistry
Genetics and Molecular Biology
Article
Evolutionary genetics
03 medical and health sciences
Hybrid zone
Animals
education
Lycaeides
030304 developmental biology
Hybrid
Z chromosome
Human evolutionary genetics
General Chemistry
Sequence Analysis
DNA
biology.organism_classification
030104 developmental biology
Genetics
Population
Evolutionary biology
Genetic Loci
Hybridization
Genetic
lcsh:Q
Entomology
Zdroj: Nature Communications, Vol 11, Iss 1, Pp 1-15 (2020)
Nature Communications
Ecology Center Publications
ISSN: 2041-1723
DOI: 10.1038/s41467-020-15641-x
Popis: Genomic outcomes of hybridization depend on selection and recombination in hybrids. Whether these processes have similar effects on hybrid genome composition in contemporary hybrid zones versus ancient hybrid lineages is unknown. Here we show that patterns of introgression in a contemporary hybrid zone in Lycaeides butterflies predict patterns of ancestry in geographically adjacent, older hybrid populations. We find a particularly striking lack of ancestry from one of the hybridizing taxa, Lycaeides melissa, on the Z chromosome in both the old and contemporary hybrids. The same pattern of reduced L. melissa ancestry on the Z chromosome is seen in two other ancient hybrid lineages. More generally, we find that patterns of ancestry in old or ancient hybrids are remarkably predictable from contemporary hybrids, which suggests selection and recombination affect hybrid genomes in a similar way across disparate time scales and during distinct stages of speciation and species breakdown.
Hybrid genomes provide a window into the speciation process over time. Here, Chaturvedi et al. use Lycaeides butterflies from hybrid zones of different ages to show that selection and recombination have repeatable effects on hybrid genome composition across timescales.
Databáze: OpenAIRE
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