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    Genotyping-by-sequencing supports a genetic basis for wing reduction in an alpine New Zealand stonefly

    Veale, Andrew; Foster, B.J.; Dearden, P. K.; Waters, J. M.

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    Date
    2018-11-02
    Citation:
    Veale, A. J., Foster, B. J., Dearden, P. K., & Waters, J. M. (2018). Genotyping-by-sequencing supports a genetic basis for wing reduction in an alpine New Zealand stonefly. Scientific Reports, 8(16275), 1-12. doi:10.1038/s41598-018-34123-1
    Permanent link to Research Bank record:
    https://hdl.handle.net/10652/4412
    Abstract
    Wing polymorphism is a prominent feature of numerous insect groups, but the genomic basis for this diversity remains poorly understood. Wing reduction is a commonly observed trait in many species of stonefies, particularly in cold or alpine environments. The widespread New Zealand stonefy Zelandoperla fenestrata species group (Z. fenestrata, Z. tillyardi, Z. pennulata) contains populations ranging from fully winged (macropterous) to vestigial-winged (micropterous), with the latter phenotype typically associated with high altitudes. The presence of fightless forms on numerous mountain ranges, separated by lowland fully winged populations, suggests wing reduction has occurred multiple times. We use Genotyping by Sequencing (GBS) to test for genetic diferentiation between fully winged (n=62) and vestigial-winged (n=34) individuals, sampled from a sympatric population of distinct wing morphotypes, to test for a genetic basis for wing morphology. While we found no population genetic diferentiation between these two morphotypes across 6,843 SNP loci, we did detect several outlier loci that strongly diferentiated morphotypes across independent tests. These fndings indicate that small regions of the genome are likely to be highly diferentiated between morphotypes, suggesting a genetic basis for wing reduction. Our results provide a clear basis for ongoing genomic analysis to elucidate critical regulatory pathways for wing development in Pterygota.
    Keywords:
    New Zealand, New Zealand stonefly (Zelandoperla fenestrata), Zelandoperla fenestrata, wing polymorphism, genotyping by sequencing (GBS), wing morphology
    ANZSRC Field of Research:
    060411 Population, Ecological and Evolutionary Genetics
    Copyright Holder:
    © Te Author(s) 2018
    Copyright Notice:
    Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
    Available Online at:
    https://www.nature.com/articles/s41598-018-34123-1
    Rights:
    This digital work is protected by copyright. It may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: Any use you make of these documents or images must be for research or private study purposes only, and you may not make them available to any other person. You will recognise the author's and publishers rights and give due acknowledgement where appropriate.
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