and the central Transantarctic Mountains
Abstract: We examined mitochondrial DNA (COI) variability and distribution of Stereotydeus spp. in Victoria Land and the Transantarctic Mountains, and constructed Neighbour Joining (NJ) and Maximum Likelihood (ML) phylogenetic trees using all publicly available COI sequences for the three Stereotyde...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.662.3366 2023-05-15T14:02:20+02:00 and the central Transantarctic Mountains Nicholas J. Demetras Ian D. Hogg Jonathan C. Banks Byron J. Adams The Pennsylvania State University CiteSeerX Archives 2010 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.662.3366 http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.662.3366 http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf Key words Antarctica Arthropoda dispersal environmental gradients mites Ross Dependency text 2010 ftciteseerx 2016-01-08T16:56:03Z Abstract: We examined mitochondrial DNA (COI) variability and distribution of Stereotydeus spp. in Victoria Land and the Transantarctic Mountains, and constructed Neighbour Joining (NJ) and Maximum Likelihood (ML) phylogenetic trees using all publicly available COI sequences for the three Stereotydeus species present (S. belli, S. mollis and S. shoupi). We also included new COI sequences from Miers, Marshall and Garwood valleys in southern Victoria Land (788S), as well as from the Darwin (798S) and Beardmore Glacier (838S) regions. Both NJ and ML methods produced trees which were similar in topology differing only in the placement of the single available S. belli sequence from Cape Hallett (728S) and a S. mollis haplotype from Miers Valley. Pairwise sequence divergences among species ranged from 9.5–18.1%. NJ and ML grouped S. shoupi from the Beardmore Glacier region as sister to those from the Darwin with pairwise divergences of 8%. These individuals formed a monophyletic clade with high bootstrap support basal to S. mollis and S. belli. Based on these new data, we suggest that the distributional range of S. shoupi extends northward to Darwin Glacier and that a barrier to dispersal for Stereotydeus, and possibly other arthropods, exists immediately to the north of this area. Text Antarc* Antarctic Science Antarctica Beardmore Glacier Darwin Glacier Ross Dependency Victoria Land Unknown Beardmore ENVELOPE(174.900,174.900,-83.350,-83.350) Beardmore Glacier ENVELOPE(170.000,170.000,-84.500,-84.500) Cape Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Darwin Glacier ENVELOPE(159.000,159.000,-79.883,-79.883) Garwood ENVELOPE(164.283,164.283,-78.033,-78.033) Hallett ENVELOPE(170.217,170.217,-72.317,-72.317) Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Miers Valley ENVELOPE(164.200,164.200,-78.100,-78.100) Ross Dependency ENVELOPE(160.000,160.000,-60.000,-60.000) Transantarctic Mountains Victoria Land |
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Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words Antarctica Arthropoda dispersal environmental gradients mites Ross Dependency |
spellingShingle |
Key words Antarctica Arthropoda dispersal environmental gradients mites Ross Dependency Nicholas J. Demetras Ian D. Hogg Jonathan C. Banks Byron J. Adams and the central Transantarctic Mountains |
topic_facet |
Key words Antarctica Arthropoda dispersal environmental gradients mites Ross Dependency |
description |
Abstract: We examined mitochondrial DNA (COI) variability and distribution of Stereotydeus spp. in Victoria Land and the Transantarctic Mountains, and constructed Neighbour Joining (NJ) and Maximum Likelihood (ML) phylogenetic trees using all publicly available COI sequences for the three Stereotydeus species present (S. belli, S. mollis and S. shoupi). We also included new COI sequences from Miers, Marshall and Garwood valleys in southern Victoria Land (788S), as well as from the Darwin (798S) and Beardmore Glacier (838S) regions. Both NJ and ML methods produced trees which were similar in topology differing only in the placement of the single available S. belli sequence from Cape Hallett (728S) and a S. mollis haplotype from Miers Valley. Pairwise sequence divergences among species ranged from 9.5–18.1%. NJ and ML grouped S. shoupi from the Beardmore Glacier region as sister to those from the Darwin with pairwise divergences of 8%. These individuals formed a monophyletic clade with high bootstrap support basal to S. mollis and S. belli. Based on these new data, we suggest that the distributional range of S. shoupi extends northward to Darwin Glacier and that a barrier to dispersal for Stereotydeus, and possibly other arthropods, exists immediately to the north of this area. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nicholas J. Demetras Ian D. Hogg Jonathan C. Banks Byron J. Adams |
author_facet |
Nicholas J. Demetras Ian D. Hogg Jonathan C. Banks Byron J. Adams |
author_sort |
Nicholas J. Demetras |
title |
and the central Transantarctic Mountains |
title_short |
and the central Transantarctic Mountains |
title_full |
and the central Transantarctic Mountains |
title_fullStr |
and the central Transantarctic Mountains |
title_full_unstemmed |
and the central Transantarctic Mountains |
title_sort |
and the central transantarctic mountains |
publishDate |
2010 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.662.3366 http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf |
long_lat |
ENVELOPE(174.900,174.900,-83.350,-83.350) ENVELOPE(170.000,170.000,-84.500,-84.500) ENVELOPE(170.217,170.217,-72.317,-72.317) ENVELOPE(159.000,159.000,-79.883,-79.883) ENVELOPE(164.283,164.283,-78.033,-78.033) ENVELOPE(170.217,170.217,-72.317,-72.317) ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(164.200,164.200,-78.100,-78.100) ENVELOPE(160.000,160.000,-60.000,-60.000) |
geographic |
Beardmore Beardmore Glacier Cape Hallett Darwin Glacier Garwood Hallett Miers Miers Valley Ross Dependency Transantarctic Mountains Victoria Land |
geographic_facet |
Beardmore Beardmore Glacier Cape Hallett Darwin Glacier Garwood Hallett Miers Miers Valley Ross Dependency Transantarctic Mountains Victoria Land |
genre |
Antarc* Antarctic Science Antarctica Beardmore Glacier Darwin Glacier Ross Dependency Victoria Land |
genre_facet |
Antarc* Antarctic Science Antarctica Beardmore Glacier Darwin Glacier Ross Dependency Victoria Land |
op_source |
http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.662.3366 http://adamslab.byu.edu/Portals/74/docs/Papers/Antarctic+Science+2010+Demetras.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766272547582640128 |