The genomic consequences of adaptive divergence and reproductive isolation between species of manakins

The processes of adaptation and speciation are expected to shape genomic variation within and between diverging species. Here we analyze genomic heterogeneity of genetic differentiation and introgression in a hybrid zone between two bird species (Manacus candei and M. vitellinus) using 59 100 SNPs,...

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Bibliographic Details
Published in:Molecular ecology 2013-06, Vol.22 (12), p.3304-3317
Main Authors: Parchman, T. L., Gompert, Z., Braun, M. J., Brumfield, R. T., McDonald, D. B., Uy, J. A. C., Zhang, G., Jarvis, E. D., Schlinger, B. A., Buerkle, C. A.
Format: Article
Language:English
Subjects:
Adaptation, Biological - genetics
Animal populations
Animal reproduction
Animals
Aves
Bayes Theorem
Biological and medical sciences
Biological evolution
Birds
Costa Rica
Fundamental and applied biological sciences. Psychology
Genetic diversity
Genetic Loci
Genetics of eukaryotes. Biological and molecular evolution
Genetics, Population
Genome
genomic cline
Genomics
hybrid zone
Hybridization, Genetic
Linkage Disequilibrium
Manacus
Models, Genetic
next-generation sequencing
Panama
Passeriformes - genetics
Polymorphism, Single Nucleotide
Population genetics, reproduction patterns
population genomics
Reproductive Isolation
Sequence Analysis, DNA
speciation
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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Summary:The processes of adaptation and speciation are expected to shape genomic variation within and between diverging species. Here we analyze genomic heterogeneity of genetic differentiation and introgression in a hybrid zone between two bird species (Manacus candei and M. vitellinus) using 59 100 SNPs, a whole genome assembly, and Bayesian models. Measures of genetic differentiation (FST) and introgression (genomic cline center [α] and rate [β]) were highly heterogeneous among loci. We identified thousands of loci with elevated parameter estimates, some of which are likely to be associated with variation in fitness in Manacus populations. To analyze the genomic organization of differentiation and introgression, we mapped SNPs onto a draft assembly of the M. vitellinus genome. Estimates of FST, α, and β were autocorrelated at very short physical distances (
ISSN:0962-1083
1365-294X
DOI:10.1111/mec.12201