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Genomic islands of divergence in hybridizing Heliconius butterflies identified by large-scale targeted sequencing
- Source :
- Philosophical Transactions of the Royal Society B: Biological Sciences, Nadeau, N J, Whibley, A, Jones, R T, Davey, J W, Dasmahapatra, K K, Baxter, S W, Quail, M A, Joron, M, Ffrench-Constant, R H, Blaxter, M L, Mallet, J & Jiggins, C D 2011, ' Genomic islands of divergence in hybridizing Heliconius butterflies identified by large-scale targeted sequencing ', Philosophical Transactions of the Royal Society B: Biological Sciences, vol. 367, no. 1587, pp. 343-53 . https://doi.org/10.1098/rstb.2011.0198
- Publication Year :
- 2012
-
Abstract
- Heliconius butterflies represent a recent radiation of species, in which wing pattern divergence has been implicated in speciation. Several loci that control wing pattern phenotypes have been mapped and two were identified through sequencing. These same gene regions play a role in adaptation across the whole Heliconius radiation. Previous studies of population genetic patterns at these regions have sequenced small amplicons. Here, we use targeted next-generation sequence capture to survey patterns of divergence across these entire regions in divergent geographical races and species of Heliconius . This technique was successful both within and between species for obtaining high coverage of almost all coding regions and sufficient coverage of non-coding regions to perform population genetic analyses. We find major peaks of elevated population differentiation between races across hybrid zones, which indicate regions under strong divergent selection. These ‘islands’ of divergence appear to be more extensive between closely related species, but there is less clear evidence for such islands between more distantly related species at two further points along the ‘speciation continuum’. We also sequence fosmid clones across these regions in different Heliconius melpomene races. We find no major structural rearrangements but many relatively large (greater than 1 kb) insertion/deletion events (including gain/loss of transposable elements) that are variable between races.
- Subjects :
- 0106 biological sciences
Genome, Insect
Adaptation, Biological
Genes, Insect
01 natural sciences
Müllerian mimicry
Gene flow
Heliconius
Wings, Animal
Phylogeny
Genetics
0303 health sciences
education.field_of_study
Agricultural and Biological Sciences(all)
Reproductive isolation
Articles
Heliconius melpomene
General Agricultural and Biological Sciences
Butterflies
Genomic Islands
Genetic Speciation
Population
Molecular Sequence Data
Biology
010603 evolutionary biology
genomic islands
General Biochemistry, Genetics and Molecular Biology
colour pattern
Ecological speciation
03 medical and health sciences
Species Specificity
Animals
education
030304 developmental biology
Base Sequence
Biochemistry, Genetics and Molecular Biology(all)
Molecular Mimicry
Genetic Variation
Sequence Analysis, DNA
biology.organism_classification
Chromosomes, Insect
Genetics, Population
speciation
Evolutionary biology
Genetic Loci
divergence
target enrichment
Subjects
Details
- Language :
- English
- ISSN :
- 09628436
- Database :
- OpenAIRE
- Journal :
- Philosophical Transactions of the Royal Society B-Biol. Sci.
- Accession number :
- edsair.doi.dedup.....196eab184c0898cf70b8d1cdd871f883
- Full Text :
- https://doi.org/10.1098/rstb.2011.0198