Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum
Abstract: Plocamium cartilagineum is a common red alga on the benthos of Antarctica and can be a dominant understory species along the western Antarctic Peninsula. Algae from this region have been studied chemically, and like “P. cartilagineum ” from other worldwide locations where it is common, it...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.361.5085 2023-05-15T14:04:05+02:00 Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum Ryan M. Young Jacqueline L. Von Salm Margaret O. Amsler Juan Lopez-bautista Charles D. Amsler James B. Mcclintock Bill J. Baker The Pennsylvania State University CiteSeerX Archives 2013 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.361.5085 http://www.mdpi.com/1660-3397/11/6/2126/pdf/ en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.361.5085 http://www.mdpi.com/1660-3397/11/6/2126/pdf/ Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mdpi.com/1660-3397/11/6/2126/pdf/ text 2013 ftciteseerx 2016-01-08T00:51:15Z Abstract: Plocamium cartilagineum is a common red alga on the benthos of Antarctica and can be a dominant understory species along the western Antarctic Peninsula. Algae from this region have been studied chemically, and like “P. cartilagineum ” from other worldwide locations where it is common, it is rich in halogenated monoterpenes, some of which have been implicated as feeding deterrents toward sympatric algal predators. Secondary metabolites are highly variable in this alga, both qualitatively and quantitatively, leading us to probe individual plants to track the possible link of variability to genetic or other factors. Using cox1 and rbcL gene sequencing, we find that the Antarctic alga divides into two closely related phylogroups, but not species, each of which is further divided into one of five chemogroups. The chemogroups themselves, defined on the basis of Bray-Curtis similarity profiling of GC/QqQ chromatographic analyses, are largely site specific within a 10 km 2 area. Thus, on the limited geographical range of this analysis, P. cartilagineum displays only modest genetic radiation, but its secondary metabolome was found to have experienced more extensive radiation. Such metabogenomic divergence demonstrated on the larger geographical scale of the Antarctic Peninsula, or Text Antarc* Antarctic Antarctic Peninsula Antarctica Unknown Antarctic Antarctic Peninsula Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) The Antarctic |
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ftciteseerx |
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English |
description |
Abstract: Plocamium cartilagineum is a common red alga on the benthos of Antarctica and can be a dominant understory species along the western Antarctic Peninsula. Algae from this region have been studied chemically, and like “P. cartilagineum ” from other worldwide locations where it is common, it is rich in halogenated monoterpenes, some of which have been implicated as feeding deterrents toward sympatric algal predators. Secondary metabolites are highly variable in this alga, both qualitatively and quantitatively, leading us to probe individual plants to track the possible link of variability to genetic or other factors. Using cox1 and rbcL gene sequencing, we find that the Antarctic alga divides into two closely related phylogroups, but not species, each of which is further divided into one of five chemogroups. The chemogroups themselves, defined on the basis of Bray-Curtis similarity profiling of GC/QqQ chromatographic analyses, are largely site specific within a 10 km 2 area. Thus, on the limited geographical range of this analysis, P. cartilagineum displays only modest genetic radiation, but its secondary metabolome was found to have experienced more extensive radiation. Such metabogenomic divergence demonstrated on the larger geographical scale of the Antarctic Peninsula, or |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Ryan M. Young Jacqueline L. Von Salm Margaret O. Amsler Juan Lopez-bautista Charles D. Amsler James B. Mcclintock Bill J. Baker |
spellingShingle |
Ryan M. Young Jacqueline L. Von Salm Margaret O. Amsler Juan Lopez-bautista Charles D. Amsler James B. Mcclintock Bill J. Baker Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
author_facet |
Ryan M. Young Jacqueline L. Von Salm Margaret O. Amsler Juan Lopez-bautista Charles D. Amsler James B. Mcclintock Bill J. Baker |
author_sort |
Ryan M. Young |
title |
Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
title_short |
Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
title_full |
Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
title_fullStr |
Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
title_full_unstemmed |
Site-Specific Variability in the Chemical Diversity of the Antarctic Red Alga Plocamium cartilagineum |
title_sort |
site-specific variability in the chemical diversity of the antarctic red alga plocamium cartilagineum |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.361.5085 http://www.mdpi.com/1660-3397/11/6/2126/pdf/ |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) |
geographic |
Antarctic Antarctic Peninsula Bray The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bray The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_source |
http://www.mdpi.com/1660-3397/11/6/2126/pdf/ |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.361.5085 http://www.mdpi.com/1660-3397/11/6/2126/pdf/ |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766275090454937600 |