From Australian Oceans Data Network
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Population genetics and taxonomy of the green alga, Caulerpa from the central Great Barrier Reef

Created 23/06/2025

Updated 23/06/2025

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Allozyme variation was examined in 7 species and 4 varieties of Caulerpa sampled from the central Great Barrier Reef region. The species examined were: Caulerpa racemosa, (vars imbricata, laetevirens, and racemosa, and a peltate morph of C. racemosa), C. cupressoides, C. lentillifera, C. peltata, C. serrulata, C. sertularioides, and C. taxifolia.Differences were examined between species and between populations of the same taxon sampled from different geographical locations, and typically included fixed gene differences (no alleles found in one taxon shared by the other taxon) at two or more loci.Cluster and cladistic analyses were carried out. Eight of 13 plants identified initially as C. serrulata were distinguished at several loci, indicating the presence of an undetermined cryptic taxon. Population genetic analysis of polymorphisms, which occurred in some taxa, demonstrated strong spatial differentiation among some populations and significant but variable degrees of clonality and/or inbreeding within these populations.Allozymes proved to be a useful tool for defining species boundaries and investigating population structure in Caulerpa, but not for determining phylogenetic relationships within the genus.Collection locations: Shelly Beach (SB), Cape Pallarenda (CP), Kissing Point (KP), The Strand (ST), The Breakwater at Townsville Harbour (EB), Horseshoe Bay on Magnetic Island (HB), Lodestone Reef (LR). To examine differences between species and between populations of the same taxon sampled from different geographical locations.

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Additional Info

Field Value
Title Population genetics and taxonomy of the green alga, Caulerpa from the central Great Barrier Reef
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/77ddb13a-6806-408d-b2ec-1414c4719f52
Contact Point
Australian Ocean Data Network
reception@aims.gov.au
Reference Period 20/11/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
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Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Population genetics and taxonomy of the green alga, Caulerpa from the central Great Barrier Reef". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/population-genetics-and-taxonomy-of-the-green-alga-caulerpa-from-the-central-great-barrier-reef1