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      Allozyme and mitochondrial DNA variability within the New Zealand damselfly genera Xanthocnemis, Austrolestes, and Ischnura (Odonata)

      Nolan, Liam; Hogg, Ian D.; Sutherland, Darin Lee; Stevens, Mark I.; Schnabel, Kareen E.
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      Hogg_Allozyme.pdf
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      DOI
       10.1080/03014220709510097
      Link
       www.royalsociety.org.nz
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      Nolan, L., Hogg, I. D., Sutherland, D., Stevens, M. I. & Schnabel, K. E. (2007). Allozyme and mitochondrial DNA variability within the New Zealand damselfly genera Xanthocnemis, Austrolestes, and Ischnura (Odonata). New Zealand Journal of Zoology, 34(4), 371- 380.
      Permanent Research Commons link: https://hdl.handle.net/10289/2039
      Abstract
      We collected larval damselflies from 17 sites in the North, South and Chatham Islands, and tested the hypotheses that: (1) genetic markers (e.g., allozymes, mtDNA) would successfully ¬discriminate taxa; and (2) the dispersal capabilities of adult damselflies would limit differentiation among locations. Four species from three genera were identified based on available taxonomic keys. Using 11 allozyme loci and the mitochondrial cytochrome c-oxidase subunit I (COI) gene, we confirmed that all taxa were clearly discernible. We found evidence for low to moderate differentiation among locations based on allozyme (mean FST = 0.09) and sequence (COI) divergence (<0.034). No obvious patterns with respect to geographic location were detected, although slight differences were found between New Zealand’s main islands (North Island, South Island) and the Chatham Islands for A. colensonis (sequence divergence 0.030–0.034). We also found limited intraspecific genetic variability based on allozyme data (Hexp < 0.06 in all cases). We conclude that levels of gene flow/dispersal on the main islands may have been sufficient to maintain the observed homogeneous population structure, and that genetic techniques, particularly the COI gene locus, will be a useful aid in future identifications.
      Date
      2007
      Type
      Journal Article
      Publisher
      R S N Z Publishing
      Rights
      This article has been published in the New Zealand Journal of Zoology. Copyright © The Royal Society of New Zealand 2007.
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      • Science and Engineering Papers [3121]
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