Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)

© Taylor and Francis Group, LLC.The fragmented distribution of Nautilus pompilius and its biology suggest there will be significant genetic divergence and spatial subdivision between east and west Australian populations. Samples were collected from the northern Great Barrier Reef, the Coral Sea, and...

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Main Authors: Sinclair, W., Newman, Stephen, Vianna, G., Williams, S., Aspden, W.
Format: Journal Article
Published: Taylor & Francis Inc. 2011
Online Access:http://hdl.handle.net/20.500.11937/52579
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author Sinclair, W.
Newman, Stephen
Vianna, G.
Williams, S.
Aspden, W.
author_facet Sinclair, W.
Newman, Stephen
Vianna, G.
Williams, S.
Aspden, W.
author_sort Sinclair, W.
building Curtin Institutional Repository
collection Online Access
description © Taylor and Francis Group, LLC.The fragmented distribution of Nautilus pompilius and its biology suggest there will be significant genetic divergence and spatial subdivision between east and west Australian populations. Samples were collected from the northern Great Barrier Reef, the Coral Sea, and the Scott Reef off Western Australia. Phylogenetic trees and a minimum spanning tree were developed from these data to elucidate evolutionary relationships. These data demonstrate significant evolutionary separation of each of the three populations into strongly supported discrete clades matching geographic stratification. Within each of the discrete populations, genetic variation is evident. Strong inter-population variation is evident, with discrete geographic clades being recognized for each extant group. The distinct spatial subdivision between east and west Australian populations of Nautilus are related to geographic and physical isolation over evolutionary time, and this has important fisheries management implications. The distinct geographic patterns of genetic structuring demonstrated by these data indicate the existence of discrete eastern and western Australian management units, and as such, these Nautilus populations should be managed discretely, as each has a high conservation value containing unique genetic variation.
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spelling curtin-20.500.11937-525792017-09-13T15:39:43Z Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda) Sinclair, W. Newman, Stephen Vianna, G. Williams, S. Aspden, W. © Taylor and Francis Group, LLC.The fragmented distribution of Nautilus pompilius and its biology suggest there will be significant genetic divergence and spatial subdivision between east and west Australian populations. Samples were collected from the northern Great Barrier Reef, the Coral Sea, and the Scott Reef off Western Australia. Phylogenetic trees and a minimum spanning tree were developed from these data to elucidate evolutionary relationships. These data demonstrate significant evolutionary separation of each of the three populations into strongly supported discrete clades matching geographic stratification. Within each of the discrete populations, genetic variation is evident. Strong inter-population variation is evident, with discrete geographic clades being recognized for each extant group. The distinct spatial subdivision between east and west Australian populations of Nautilus are related to geographic and physical isolation over evolutionary time, and this has important fisheries management implications. The distinct geographic patterns of genetic structuring demonstrated by these data indicate the existence of discrete eastern and western Australian management units, and as such, these Nautilus populations should be managed discretely, as each has a high conservation value containing unique genetic variation. 2011 Journal Article http://hdl.handle.net/20.500.11937/52579 10.1080/10641262.2010.533794 Taylor & Francis Inc. restricted
spellingShingle Sinclair, W.
Newman, Stephen
Vianna, G.
Williams, S.
Aspden, W.
Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title_full Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title_fullStr Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title_full_unstemmed Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title_short Spatial subdivision and genetic diversity in populations on the east and west coasts of Australia: The multi-faceted case of Nautilus pompilius (Mollusca, Cephalopoda)
title_sort spatial subdivision and genetic diversity in populations on the east and west coasts of australia: the multi-faceted case of nautilus pompilius (mollusca, cephalopoda)
url http://hdl.handle.net/20.500.11937/52579