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A large and diverse autosomal haplotype is associated with sex-linked colour polymorphism in the guppy.
Paris, Josephine R; Whiting, James R; Daniel, Mitchel J; Ferrer Obiol, Joan; Parsons, Paul J; van der Zee, Mijke J; Wheat, Christopher W; Hughes, Kimberly A; Fraser, Bonnie A.
Afiliación
  • Paris JR; Department of Biosciences, University of Exeter, Stocker Road, Exeter, EX4 4QD, UK. j.r.paris@exeter.ac.uk.
  • Whiting JR; Department of Biosciences, University of Exeter, Stocker Road, Exeter, EX4 4QD, UK.
  • Daniel MJ; Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL, 32304, USA.
  • Ferrer Obiol J; Departament de Microbiologia, Genètica i Estadística and Institut de Recerca de la Biodiversitat, Universitat de Barcelona, Barcelona, Catalonia, Spain.
  • Parsons PJ; Department of Biosciences, University of Exeter, Stocker Road, Exeter, EX4 4QD, UK.
  • van der Zee MJ; NERC Environmental Omics Facility, School of Biosciences, University of Sheffield, Sheffield, S10 2TN, UK.
  • Wheat CW; Department of Biosciences, University of Exeter, Stocker Road, Exeter, EX4 4QD, UK.
  • Hughes KA; Department of Zoology, Stockholm University, Stockholm, Sweden.
  • Fraser BA; Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL, 32304, USA.
Nat Commun ; 13(1): 1233, 2022 03 09.
Article en En | MEDLINE | ID: mdl-35264556
Male colour patterns of the Trinidadian guppy (Poecilia reticulata) are typified by extreme variation governed by both natural and sexual selection. Since guppy colour patterns are often inherited faithfully from fathers to sons, it has been hypothesised that many of the colour trait genes must be physically linked to sex determining loci as a 'supergene' on the sex chromosome. Here, we phenotype and genotype four guppy 'Iso-Y lines', where colour was inherited along the patriline for 40 generations. Using an unbiased phenotyping method, we confirm the breeding design was successful in creating four distinct colour patterns. We find that genetic differentiation among the Iso-Y lines is repeatedly associated with a diverse haplotype on an autosome (LG1), not the sex chromosome (LG12). Moreover, the LG1 haplotype exhibits elevated linkage disequilibrium and evidence of sex-specific diversity in the natural source population. We hypothesise that colour pattern polymorphism is driven by Y-autosome epistasis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poecilia Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poecilia Tipo de estudio: Risk_factors_studies Límite: Animals Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido