Phylogenetic and geographic variation of northern Australian sympatric lineages of Treptopale homalos and T. paromolos (Annelida: Phyllodocida: Chrysopetalidae) using mitochondrial and nuclear sequences

Nu-Wei Wei, Charlotte Watson, Karen Gibb

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    We used mitochondrial (COI) and nuclear (Histone H3) genome markers to test the hypothesis that the diversity of Treptopale (Annelida: Chrysopetalidae) in northern Australia comprises more than the two currently known species recently described based on morphology. The molecular phylogeny reveals nine clades. The Treptopale homalos species complex comprises: T. homalos sensu stricto, the only clade occurring all around northern Australia (from Heron Island to Ningaloo Reef); Clade 8 found only at Ningaloo Reef; Clade 2 found only on the Great Barrier Reef and described here as new. Treptopale magdae sp. nov. can be distinguished morphologically by the smaller number of internal ribs of the lateral, main and medial paleael notochaetae. The diverse Treptopale paromolos species complex comprises six clades: Clade 3, Treptopale paromolos sensu stricto and Clade 5 are only found on Australia's NW coast; Clades 4, 6 and 9 are found only in NE Australia. Molecular phylogenetic relationships, especially those using mtDNA COI, suggest that Australian east and west coast populations of the T. homalos and T. paromolos lineages have diverged a number of times. The highest diversity of Treptopale clades is found within the complex micro-patch habitats of NE and NW Australia's major coral reef systems. The low diversity of Treptopale clades found in the north (Darwin Harbour) and northwest (Scott Reef) is related to the presence of less complex reefal systems and a corresponding lack of coral habitat diversity.
    Original languageEnglish
    Pages (from-to)692-702
    Number of pages11
    JournalMarine Biology Research
    Volume9
    Issue number7
    DOIs
    Publication statusPublished - 1 Aug 2013

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    Annelida
    geographical variation
    reef
    species complex
    phylogenetics
    phylogeny
    reefs
    coast
    habitat
    barrier reef
    coral reef
    coral
    harbor
    genome
    coasts
    Ardeidae
    Great Barrier Reef
    habitats
    ribs
    histones

    Cite this

    @article{6e3dd1a10fb943f3ac22c83a1b909040,
    title = "Phylogenetic and geographic variation of northern Australian sympatric lineages of Treptopale homalos and T. paromolos (Annelida: Phyllodocida: Chrysopetalidae) using mitochondrial and nuclear sequences",
    abstract = "We used mitochondrial (COI) and nuclear (Histone H3) genome markers to test the hypothesis that the diversity of Treptopale (Annelida: Chrysopetalidae) in northern Australia comprises more than the two currently known species recently described based on morphology. The molecular phylogeny reveals nine clades. The Treptopale homalos species complex comprises: T. homalos sensu stricto, the only clade occurring all around northern Australia (from Heron Island to Ningaloo Reef); Clade 8 found only at Ningaloo Reef; Clade 2 found only on the Great Barrier Reef and described here as new. Treptopale magdae sp. nov. can be distinguished morphologically by the smaller number of internal ribs of the lateral, main and medial paleael notochaetae. The diverse Treptopale paromolos species complex comprises six clades: Clade 3, Treptopale paromolos sensu stricto and Clade 5 are only found on Australia's NW coast; Clades 4, 6 and 9 are found only in NE Australia. Molecular phylogenetic relationships, especially those using mtDNA COI, suggest that Australian east and west coast populations of the T. homalos and T. paromolos lineages have diverged a number of times. The highest diversity of Treptopale clades is found within the complex micro-patch habitats of NE and NW Australia's major coral reef systems. The low diversity of Treptopale clades found in the north (Darwin Harbour) and northwest (Scott Reef) is related to the presence of less complex reefal systems and a corresponding lack of coral habitat diversity.",
    keywords = "annelid, biological characteristics, divergence, genetic marker, geographical variation, hypothesis testing, mitochondrial DNA, morphology, new taxon, phylogenetics, phylogeny, phylogeography, relatedness, species complex, species diversity, sympatry, taxonomy, Australia, Annelida, Anthozoa, Chrysopetalidae, Phyllodocida, Polychaeta",
    author = "Nu-Wei Wei and Charlotte Watson and Karen Gibb",
    year = "2013",
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    doi = "10.1080/17451000.2013.765578",
    language = "English",
    volume = "9",
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    Phylogenetic and geographic variation of northern Australian sympatric lineages of Treptopale homalos and T. paromolos (Annelida: Phyllodocida: Chrysopetalidae) using mitochondrial and nuclear sequences. / Wei, Nu-Wei; Watson, Charlotte; Gibb, Karen.

    In: Marine Biology Research, Vol. 9, No. 7, 01.08.2013, p. 692-702.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Phylogenetic and geographic variation of northern Australian sympatric lineages of Treptopale homalos and T. paromolos (Annelida: Phyllodocida: Chrysopetalidae) using mitochondrial and nuclear sequences

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    AB - We used mitochondrial (COI) and nuclear (Histone H3) genome markers to test the hypothesis that the diversity of Treptopale (Annelida: Chrysopetalidae) in northern Australia comprises more than the two currently known species recently described based on morphology. The molecular phylogeny reveals nine clades. The Treptopale homalos species complex comprises: T. homalos sensu stricto, the only clade occurring all around northern Australia (from Heron Island to Ningaloo Reef); Clade 8 found only at Ningaloo Reef; Clade 2 found only on the Great Barrier Reef and described here as new. Treptopale magdae sp. nov. can be distinguished morphologically by the smaller number of internal ribs of the lateral, main and medial paleael notochaetae. The diverse Treptopale paromolos species complex comprises six clades: Clade 3, Treptopale paromolos sensu stricto and Clade 5 are only found on Australia's NW coast; Clades 4, 6 and 9 are found only in NE Australia. Molecular phylogenetic relationships, especially those using mtDNA COI, suggest that Australian east and west coast populations of the T. homalos and T. paromolos lineages have diverged a number of times. The highest diversity of Treptopale clades is found within the complex micro-patch habitats of NE and NW Australia's major coral reef systems. The low diversity of Treptopale clades found in the north (Darwin Harbour) and northwest (Scott Reef) is related to the presence of less complex reefal systems and a corresponding lack of coral habitat diversity.

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    KW - relatedness

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