Adaptive introgression across species boundaries in Heliconius butterflies

C. Pardo-Diaz, C. Salazar, S.W. Baxter, C. Merot, W. Figueiredo-Ready, M. Joron, W.O. McMillan, C.D. Jiggins

Resultado de la investigación: Contribución a RevistaArtículo

161 Citas (Scopus)

Resumen

It is widely documented that hybridisation occurs between many closely related species, but the importance of introgression in adaptive evolution remains unclear, especially in animals. Here, we have examined the role of introgressive hybridisation in transferring adaptations between mimetic Heliconius butterflies, taking advantage of the recent identification of a gene regulating red wing patterns in this genus. By sequencing regions both linked and unlinked to the red colour locus, we found a region that displays an almost perfect genotype by phenotype association across four species, H. melpomene, H. cydno, H. timareta, and H. heurippa. This particular segment is located 70 kb downstream of the red colour specification gene optix, and coalescent analysis indicates repeated introgression of adaptive alleles from H. melpomene into the H. cydno species clade. Our analytical methods complement recent genome scale data for the same region and suggest adaptive introgression has a crucial role in generating adaptive wing colour diversity in this group of butterflies.
Idioma originalEnglish (US)
PublicaciónPLoS Genetics
Volumen8
N.º6
EstadoPublished - 2012
Publicado de forma externa

Huella dactilar

Heliconius
Butterflies
introgression
butterfly
butterflies
Color
Melpomene
color
gene
Genetic Association Studies
Genes
phenotype
analytical method
allele
genotype
genome
Alleles
Genome
analytical methods
complement

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Pardo-Diaz, C., Salazar, C., Baxter, S. W., Merot, C., Figueiredo-Ready, W., Joron, M., ... Jiggins, C. D. (2012). Adaptive introgression across species boundaries in Heliconius butterflies. PLoS Genetics, 8(6).
Pardo-Diaz, C. ; Salazar, C. ; Baxter, S.W. ; Merot, C. ; Figueiredo-Ready, W. ; Joron, M. ; McMillan, W.O. ; Jiggins, C.D. / Adaptive introgression across species boundaries in Heliconius butterflies. En: PLoS Genetics. 2012 ; Vol. 8, N.º 6.
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abstract = "It is widely documented that hybridisation occurs between many closely related species, but the importance of introgression in adaptive evolution remains unclear, especially in animals. Here, we have examined the role of introgressive hybridisation in transferring adaptations between mimetic Heliconius butterflies, taking advantage of the recent identification of a gene regulating red wing patterns in this genus. By sequencing regions both linked and unlinked to the red colour locus, we found a region that displays an almost perfect genotype by phenotype association across four species, H. melpomene, H. cydno, H. timareta, and H. heurippa. This particular segment is located 70 kb downstream of the red colour specification gene optix, and coalescent analysis indicates repeated introgression of adaptive alleles from H. melpomene into the H. cydno species clade. Our analytical methods complement recent genome scale data for the same region and suggest adaptive introgression has a crucial role in generating adaptive wing colour diversity in this group of butterflies.",
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Pardo-Diaz, C, Salazar, C, Baxter, SW, Merot, C, Figueiredo-Ready, W, Joron, M, McMillan, WO & Jiggins, CD 2012, 'Adaptive introgression across species boundaries in Heliconius butterflies', PLoS Genetics, vol. 8, n.º 6.

Adaptive introgression across species boundaries in Heliconius butterflies. / Pardo-Diaz, C.; Salazar, C.; Baxter, S.W.; Merot, C.; Figueiredo-Ready, W.; Joron, M.; McMillan, W.O.; Jiggins, C.D.

En: PLoS Genetics, Vol. 8, N.º 6, 2012.

Resultado de la investigación: Contribución a RevistaArtículo

TY - JOUR

T1 - Adaptive introgression across species boundaries in Heliconius butterflies

AU - Pardo-Diaz, C.

AU - Salazar, C.

AU - Baxter, S.W.

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AU - Figueiredo-Ready, W.

AU - Joron, M.

AU - McMillan, W.O.

AU - Jiggins, C.D.

PY - 2012

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AB - It is widely documented that hybridisation occurs between many closely related species, but the importance of introgression in adaptive evolution remains unclear, especially in animals. Here, we have examined the role of introgressive hybridisation in transferring adaptations between mimetic Heliconius butterflies, taking advantage of the recent identification of a gene regulating red wing patterns in this genus. By sequencing regions both linked and unlinked to the red colour locus, we found a region that displays an almost perfect genotype by phenotype association across four species, H. melpomene, H. cydno, H. timareta, and H. heurippa. This particular segment is located 70 kb downstream of the red colour specification gene optix, and coalescent analysis indicates repeated introgression of adaptive alleles from H. melpomene into the H. cydno species clade. Our analytical methods complement recent genome scale data for the same region and suggest adaptive introgression has a crucial role in generating adaptive wing colour diversity in this group of butterflies.

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