Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica
The moss Hennediella heimii constitutes a significant proportion of the terrestrial flora of East Antarctica, especially in the McMurdo Dry Valleys region of southern Victoria Land. This is the first investigation of the extent of genetic variation within a population of H. heimii. Random Amplified...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/965da92c-7fb0-44d5-b3c6-20891430de1a 2024-05-12T07:55:18+00:00 Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica Dale, T. M. Skotnicki, M. L. Adam, K. D. Selkirk, P. M. 1999 https://researchers.mq.edu.au/en/publications/965da92c-7fb0-44d5-b3c6-20891430de1a https://doi.org/10.1007/s003000050357 http://www.scopus.com/inward/record.url?scp=0032896035&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Dale , T M , Skotnicki , M L , Adam , K D & Selkirk , P M 1999 , ' Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica ' , Polar Biology , vol. 21 , no. 4 , pp. 228-233 . https://doi.org/10.1007/s003000050357 article 1999 ftmacquarieunicr https://doi.org/10.1007/s003000050357 2024-04-16T02:57:28Z The moss Hennediella heimii constitutes a significant proportion of the terrestrial flora of East Antarctica, especially in the McMurdo Dry Valleys region of southern Victoria Land. This is the first investigation of the extent of genetic variation within a population of H. heimii. Random Amplified Polymorphic DNA has been used to study both genetic diversity and dispersal of this moss in Miers Valley, southern Victoria Land. The results showed that genetic variation does occur m H. heimii (possibly due to increased exposure to UV-B irradiation), even between shoots within single colonies, and that colonies collected from three transects along meltstreams within the valley constitute a single large population. However, comparison with samples of the same species from nearby valleys and sites up to 500 km distant showed that the Miers Valley population is distinct from these other populations. The results also indicate that wind plays a major role in dispersal of H. heimii in this region of Antarctica. Article in Journal/Newspaper Antarc* Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land Macquarie University Research Portal East Antarctica Victoria Land McMurdo Dry Valleys Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Miers Valley ENVELOPE(164.200,164.200,-78.100,-78.100) Polar Biology 21 4 228 233 |
institution |
Open Polar |
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Macquarie University Research Portal |
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ftmacquarieunicr |
language |
English |
description |
The moss Hennediella heimii constitutes a significant proportion of the terrestrial flora of East Antarctica, especially in the McMurdo Dry Valleys region of southern Victoria Land. This is the first investigation of the extent of genetic variation within a population of H. heimii. Random Amplified Polymorphic DNA has been used to study both genetic diversity and dispersal of this moss in Miers Valley, southern Victoria Land. The results showed that genetic variation does occur m H. heimii (possibly due to increased exposure to UV-B irradiation), even between shoots within single colonies, and that colonies collected from three transects along meltstreams within the valley constitute a single large population. However, comparison with samples of the same species from nearby valleys and sites up to 500 km distant showed that the Miers Valley population is distinct from these other populations. The results also indicate that wind plays a major role in dispersal of H. heimii in this region of Antarctica. |
format |
Article in Journal/Newspaper |
author |
Dale, T. M. Skotnicki, M. L. Adam, K. D. Selkirk, P. M. |
spellingShingle |
Dale, T. M. Skotnicki, M. L. Adam, K. D. Selkirk, P. M. Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
author_facet |
Dale, T. M. Skotnicki, M. L. Adam, K. D. Selkirk, P. M. |
author_sort |
Dale, T. M. |
title |
Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
title_short |
Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
title_full |
Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
title_fullStr |
Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
title_full_unstemmed |
Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica |
title_sort |
genetic diversity in the moss hennediella heimii in miers valley, southern victoria land, antarctica |
publishDate |
1999 |
url |
https://researchers.mq.edu.au/en/publications/965da92c-7fb0-44d5-b3c6-20891430de1a https://doi.org/10.1007/s003000050357 http://www.scopus.com/inward/record.url?scp=0032896035&partnerID=8YFLogxK |
long_lat |
ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(164.200,164.200,-78.100,-78.100) |
geographic |
East Antarctica Victoria Land McMurdo Dry Valleys Miers Miers Valley |
geographic_facet |
East Antarctica Victoria Land McMurdo Dry Valleys Miers Miers Valley |
genre |
Antarc* Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica McMurdo Dry Valleys Polar Biology Victoria Land |
op_source |
Dale , T M , Skotnicki , M L , Adam , K D & Selkirk , P M 1999 , ' Genetic diversity in the moss Hennediella heimii in Miers Valley, southern Victoria Land, Antarctica ' , Polar Biology , vol. 21 , no. 4 , pp. 228-233 . https://doi.org/10.1007/s003000050357 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s003000050357 |
container_title |
Polar Biology |
container_volume |
21 |
container_issue |
4 |
container_start_page |
228 |
op_container_end_page |
233 |
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1798835056685350912 |