Hybridisation generates a hopeful monster: a hermaphroditic selfing cichlid

Ola Svensson; Alan Smith; Javier Garcia-Alonso; Cock van Oosterhout

doi:10.1098/rsos.150684

Hybridisation generates a hopeful monster: a hermaphroditic selfing cichlid

Ola Svensson, Alan Smith, Javier Garcia-Alonso, Cock van Oosterhout

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12 Citations (Scopus)

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Abstract

Compared to other phylogenetic groups, self-fertilization (selfing) is exceedingly rare in vertebrates and is known to occur only in one small clade of fishes. Here we report observing one F1 hybrid individual that developed into a functional hermaphrodite after crossing two closely related sexually reproducing species of cichlids. Microsatellite alleles segregated consistent with selfing and Mendelian inheritance and we could rule out different modes of parthenogenesis including automixis. We discuss why selfing is not more commonly observed in vertebrates in nature, and the role of hybridisation in the evolution of novel traits

Original language	English
Article number	150684
Journal	Royal Society Open Science
Volume	3
DOIs	https://doi.org/10.1098/rsos.150684
Publication status	Published - 23 Mar 2016

Keywords

Colour polymorphism
disorders of sex development (DSDs)
Pundamilia pundamilia x Neochromis omnicaeruleus
self-fertilization
selfing
transgressive segregation

Access to Document

10.1098/rsos.150684Licence: CC BY

RS_OpenScience_150684Final published version, 476 KBLicence: CC BY

Cite this

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title = "Hybridisation generates a hopeful monster: a hermaphroditic selfing cichlid",

abstract = "Compared to other phylogenetic groups, self-fertilization (selfing) is exceedingly rare in vertebrates and is known to occur only in one small clade of fishes. Here we report observing one F1 hybrid individual that developed into a functional hermaphrodite after crossing two closely related sexually reproducing species of cichlids. Microsatellite alleles segregated consistent with selfing and Mendelian inheritance and we could rule out different modes of parthenogenesis including automixis. We discuss why selfing is not more commonly observed in vertebrates in nature, and the role of hybridisation in the evolution of novel traits",

keywords = "Colour polymorphism, disorders of sex development (DSDs), Pundamilia pundamilia x Neochromis omnicaeruleus, self-fertilization, selfing, transgressive segregation",

author = "Ola Svensson and Alan Smith and Javier Garcia-Alonso and {van Oosterhout}, Cock",

note = "{\textcopyright} 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. Data accessibility: All raw data are included in the article. The model code is available from C.v.O. upon request. Funding information: O.S. was supported by the Linnaeus Centre for Marine Evolutionary Biology at the University of Gothenburg (http://www.cemeb.science.gu.se/) and C.v.O. was supported by the Earth and Life Systems Alliance (ELSA).",

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doi = "10.1098/rsos.150684",

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AU - Svensson, Ola

AU - Smith, Alan

AU - Garcia-Alonso, Javier

AU - van Oosterhout, Cock

N1 - © 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. Data accessibility: All raw data are included in the article. The model code is available from C.v.O. upon request. Funding information: O.S. was supported by the Linnaeus Centre for Marine Evolutionary Biology at the University of Gothenburg (http://www.cemeb.science.gu.se/) and C.v.O. was supported by the Earth and Life Systems Alliance (ELSA).

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AB - Compared to other phylogenetic groups, self-fertilization (selfing) is exceedingly rare in vertebrates and is known to occur only in one small clade of fishes. Here we report observing one F1 hybrid individual that developed into a functional hermaphrodite after crossing two closely related sexually reproducing species of cichlids. Microsatellite alleles segregated consistent with selfing and Mendelian inheritance and we could rule out different modes of parthenogenesis including automixis. We discuss why selfing is not more commonly observed in vertebrates in nature, and the role of hybridisation in the evolution of novel traits

KW - Colour polymorphism

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KW - Pundamilia pundamilia x Neochromis omnicaeruleus

KW - self-fertilization

KW - selfing

KW - transgressive segregation

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