(1) Background: Originally described as a single taxon, (Hutton, 1876) are distributed across both main islands of New Zealand; the existence of multiple distinct lineages of live-bearing Onychophora across this spatial range has gradually emerged. Morphological conservatism obscured the true endemic diversity, and the inclusion of molecular tools has been instrumental in revealing these cryptic taxa. (2) Methods: Here, we review the diversity of the ovoviviparous Onychophora of New Zealand through a re-analysis of allozyme genotype data, mitochondrial DNA cytochrome oxidase subunit I sequences, geographic information and morphology. (3) Results: New analysis of the multilocus biallelic nuclear data using methods that do not require a priori assumptions of population assignment support at least six lineages of ovoviviparous in northern New Zealand, and mtDNA sequence variation is consistent with these divisions. Expansion of mitochondrial DNA sequence data, including representation of all existing taxa and additional populations extends our knowledge of the scale of sympatry among taxa and shows that three other lineages from southern South Island can be added to the list, and names are proposed here. In total, 10 species of can be recognised with current data.
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http://dx.doi.org/10.3390/insects15040248 | DOI Listing |
Insects
April 2024
Wildlife & Ecology, School of Natural Sciences, Massey University, Private Bag 11-222, Palmerston North 4410, New Zealand.
(1) Background: Originally described as a single taxon, (Hutton, 1876) are distributed across both main islands of New Zealand; the existence of multiple distinct lineages of live-bearing Onychophora across this spatial range has gradually emerged. Morphological conservatism obscured the true endemic diversity, and the inclusion of molecular tools has been instrumental in revealing these cryptic taxa. (2) Methods: Here, we review the diversity of the ovoviviparous Onychophora of New Zealand through a re-analysis of allozyme genotype data, mitochondrial DNA cytochrome oxidase subunit I sequences, geographic information and morphology.
View Article and Find Full Text PDFEcol Evol
May 2014
Department of Life Sciences, Imperial College London Silwood Park Campus, Ascot, SL5 7PY, U.K.
Habitat fragmentation studies have produced complex results that are challenging to synthesize. Inconsistencies among studies may result from variation in the choice of landscape metrics and response variables, which is often compounded by a lack of key statistical or methodological information. Collating primary datasets on biodiversity responses to fragmentation in a consistent and flexible database permits simple data retrieval for subsequent analyses.
View Article and Find Full Text PDFProc Biol Sci
January 2014
Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology, Harvard University, , 26 Oxford Street, Cambridge, MA 02138, USA, CNRS, Université Paul Sabatier, ENFA, UMR 5174 EDB (Laboratoire Évolution et Diversité Biologique), Université de Toulouse, , 118 route de Narbonne, Toulouse 31062, France, Department of Botany and Zoology, University of Stellenbosch, , Private Bag X1, Matieland 7602, South Africa, Landcare Research, Auckland Mail Centre, , Private Bag 92170, Auckland 1142, New Zealand, School of Biological Sciences, University of Auckland, , Auckland, New Zealand, Allan Wilson Centre for Molecular Ecology and Evolution, , Auckland, New Zealand, Animal Evolution and Development, Institute of Biology, University of Leipzig, , Talstraße 33, Leipzig 04103, Germany.
The current distributions of widespread groups of terrestrial animals and plants are supposedly the result of a mixture of either vicariance owing to continental split or more recent trans-oceanic dispersal. For organisms exhibiting a vicariant biogeographic pattern-achieving their current distribution by riding on the plates of former supercontinents-this view is largely inspired by the belief that Pangaea lacked geographical or ecological barriers, or that extinctions and dispersal would have erased any biogeographic signal since the early Mesozoic. We here present a time-calibrated molecular phylogeny of Onychophora (velvet worms), an ancient and exclusively terrestrial panarthropod group distributed throughout former Pangaean landmasses.
View Article and Find Full Text PDFJ Morphol
October 2008
Electron Microscope Unit, University of New South Wales, New South Wales, Australia.
Although the majority of onychophorans are viviparous or ovoviviparous, oviparity has been described in a number of species found exclusively in Australia and New Zealand. Light microscopy and scanning and transmission electron microscopy were used to examine developing eggs and the reproductive tract of the oviparous Planipapillus mundus. Deposited eggs and fully developed eggs dissected from the terminal end of the uteri have an outer thick, slightly opaque chorion, and an inner thin, transparent vitelline membrane.
View Article and Find Full Text PDFMol Ecol
March 2000
Department of Zoology, University of Otago, Dunedin, PO Box 56, New Zealand.
A combination of single-strand conformation polymorphism analysis (SSCP) and sequencing were used to survey cytochrome oxidase I (COI) mitochondrial DNA (mtDNA) diversity among New Zealand ovoviviparous Onychophora. Most of the sites and individuals had previously been analysed using allozyme electrophoresis. A total of 157 peripatus collected at 54 sites throughout New Zealand were screened yielding 62 different haplotypes.
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