Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence
Hench K, Vargas M, Höppner MP, McMillan WO, Puebla O (2019)
Nature Ecology & Evolution 3(4): 657-667.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Hench, KosmasUniBi
;
Vargas, Marta;
Höppner, Marc P.;
McMillan, W. Owen;
Puebla, Oscar
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Einrichtung
Abstract / Bemerkung
**Abstract**
Recombination between loci underlying mate choice and ecological traits is a major evolutionary force acting against speciation with gene flow. The evolution of linkage disequilibrium between such loci is therefore a fundamental step in the origin of species. Here, we show that this process can take place in the absence of physical linkage in hamlets—a group of closely related reef fishes from the wider Caribbean that differ essentially in colour pattern and are reproductively isolated through strong visually-based assortative mating. Using full-genome analysis, we identify four narrow genomic intervals that are consistently differentiated among sympatric species in a backdrop of extremely low genomic divergence. These four intervals include genes involved in pigmentation (sox10), axial patterning (hoxc13a), photoreceptor development (casz1) and visual sensitivity (SWSandLWSopsins) that develop islands of long-distance and inter-chromosomal linkage disequilibrium as species diverge. The relatively simple genomic architecture of species differences facilitates the evolution of linkage disequilibrium in the presence of gene flow.
Recombination between loci underlying mate choice and ecological traits is a major evolutionary force acting against speciation with gene flow. The evolution of linkage disequilibrium between such loci is therefore a fundamental step in the origin of species. Here, we show that this process can take place in the absence of physical linkage in hamlets—a group of closely related reef fishes from the wider Caribbean that differ essentially in colour pattern and are reproductively isolated through strong visually-based assortative mating. Using full-genome analysis, we identify four narrow genomic intervals that are consistently differentiated among sympatric species in a backdrop of extremely low genomic divergence. These four intervals include genes involved in pigmentation (sox10), axial patterning (hoxc13a), photoreceptor development (casz1) and visual sensitivity (SWSandLWSopsins) that develop islands of long-distance and inter-chromosomal linkage disequilibrium as species diverge. The relatively simple genomic architecture of species differences facilitates the evolution of linkage disequilibrium in the presence of gene flow.
Erscheinungsjahr
2019
Zeitschriftentitel
Nature Ecology & Evolution
Band
3
Ausgabe
4
Seite(n)
657-667
Urheberrecht / Lizenzen
eISSN
2397-334X
Page URI
https://pub.uni-bielefeld.de/record/2988696
Zitieren
Hench K, Vargas M, Höppner MP, McMillan WO, Puebla O. Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence. Nature Ecology & Evolution. 2019;3(4):657-667.
Hench, K., Vargas, M., Höppner, M. P., McMillan, W. O., & Puebla, O. (2019). Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence. Nature Ecology & Evolution, 3(4), 657-667. https://doi.org/10.1038/s41559-019-0814-5
Hench, Kosmas, Vargas, Marta, Höppner, Marc P., McMillan, W. Owen, and Puebla, Oscar. 2019. “Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence”. Nature Ecology & Evolution 3 (4): 657-667.
Hench, K., Vargas, M., Höppner, M. P., McMillan, W. O., and Puebla, O. (2019). Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence. Nature Ecology & Evolution 3, 657-667.
Hench, K., et al., 2019. Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence. Nature Ecology & Evolution, 3(4), p 657-667.
K. Hench, et al., “Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence”, Nature Ecology & Evolution, vol. 3, 2019, pp. 657-667.
Hench, K., Vargas, M., Höppner, M.P., McMillan, W.O., Puebla, O.: Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence. Nature Ecology & Evolution. 3, 657-667 (2019).
Hench, Kosmas, Vargas, Marta, Höppner, Marc P., McMillan, W. Owen, and Puebla, Oscar. “Inter-chromosomal coupling between vision and pigmentation genes during genomic divergence”. Nature Ecology & Evolution 3.4 (2019): 657-667.
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