RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica
The RAPD technique (Random Amplified Polymorphic DNA) was used to assess the level of genetic diversity in Bryum pseudotriquetrum from Southern Victoria Land, Antarctica. Isolates were collected from two transects, and from several other geographically distinct populations within 150 km of Ross Isla...
Published in: | Polar Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1998
|
Subjects: | |
Online Access: | https://researchers.mq.edu.au/en/publications/7c2938be-8316-4492-a8dd-1e184584b9e5 https://doi.org/10.1007/s003000050285 http://www.scopus.com/inward/record.url?scp=0031904543&partnerID=8YFLogxK |
id |
ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/7c2938be-8316-4492-a8dd-1e184584b9e5 |
---|---|
record_format |
openpolar |
spelling |
ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/7c2938be-8316-4492-a8dd-1e184584b9e5 2023-05-15T13:58:30+02:00 RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica Skotnicki, M. L. Selkirk, P. M. Ninham, J. A. 1998 https://researchers.mq.edu.au/en/publications/7c2938be-8316-4492-a8dd-1e184584b9e5 https://doi.org/10.1007/s003000050285 http://www.scopus.com/inward/record.url?scp=0031904543&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Skotnicki , M L , Selkirk , P M & Ninham , J A 1998 , ' RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica ' , Polar Biology , vol. 20 , no. 2 , pp. 121-126 . https://doi.org/10.1007/s003000050285 article 1998 ftmacquarieunicr https://doi.org/10.1007/s003000050285 2022-11-06T06:35:25Z The RAPD technique (Random Amplified Polymorphic DNA) was used to assess the level of genetic diversity in Bryum pseudotriquetrum from Southern Victoria Land, Antarctica. Isolates were collected from two transects, and from several other geographically distinct populations within 150 km of Ross Island. Moss growth in one transect, sampled down a small exposed meltstream channel at Cape Chocolate, was very sparse with no other moss colonies found within several hundred meters. Isolates from this transect showed low levels of genetic variation, with many moss clumps appearing identical; these were probably dispersed by water along the channel. In another transect analysed from Granite Harbour, the moss colonies were large, luxuriant and protected by boulders. These isolates showed considerably higher levels of genetic variability than the Cape Chocolate samples, and both within- and between-clump variation was observed. Samples from other sites showed varying levels of genetic diversity. It appears from these results that the degree of protection from the harsh Antarctic environment can influence not only the type of moss growth, but also the level of genetic diversity. Evidence is presented for both short-distance dispersal by water and long-distance dispersal by wind. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Biology Ross Island Victoria Land Macquarie University Research Portal Antarctic Victoria Land Ross Island Granite Harbour ENVELOPE(162.733,162.733,-76.883,-76.883) Cape Chocolate ENVELOPE(166.050,166.050,-72.600,-72.600) Polar Biology 20 2 121 126 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
description |
The RAPD technique (Random Amplified Polymorphic DNA) was used to assess the level of genetic diversity in Bryum pseudotriquetrum from Southern Victoria Land, Antarctica. Isolates were collected from two transects, and from several other geographically distinct populations within 150 km of Ross Island. Moss growth in one transect, sampled down a small exposed meltstream channel at Cape Chocolate, was very sparse with no other moss colonies found within several hundred meters. Isolates from this transect showed low levels of genetic variation, with many moss clumps appearing identical; these were probably dispersed by water along the channel. In another transect analysed from Granite Harbour, the moss colonies were large, luxuriant and protected by boulders. These isolates showed considerably higher levels of genetic variability than the Cape Chocolate samples, and both within- and between-clump variation was observed. Samples from other sites showed varying levels of genetic diversity. It appears from these results that the degree of protection from the harsh Antarctic environment can influence not only the type of moss growth, but also the level of genetic diversity. Evidence is presented for both short-distance dispersal by water and long-distance dispersal by wind. |
format |
Article in Journal/Newspaper |
author |
Skotnicki, M. L. Selkirk, P. M. Ninham, J. A. |
spellingShingle |
Skotnicki, M. L. Selkirk, P. M. Ninham, J. A. RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
author_facet |
Skotnicki, M. L. Selkirk, P. M. Ninham, J. A. |
author_sort |
Skotnicki, M. L. |
title |
RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
title_short |
RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
title_full |
RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
title_fullStr |
RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
title_full_unstemmed |
RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica |
title_sort |
rapd analysis of genetic variation and dispersal of the moss bryum pseudotriquetrum from southern victoria land, antarctica |
publishDate |
1998 |
url |
https://researchers.mq.edu.au/en/publications/7c2938be-8316-4492-a8dd-1e184584b9e5 https://doi.org/10.1007/s003000050285 http://www.scopus.com/inward/record.url?scp=0031904543&partnerID=8YFLogxK |
long_lat |
ENVELOPE(162.733,162.733,-76.883,-76.883) ENVELOPE(166.050,166.050,-72.600,-72.600) |
geographic |
Antarctic Victoria Land Ross Island Granite Harbour Cape Chocolate |
geographic_facet |
Antarctic Victoria Land Ross Island Granite Harbour Cape Chocolate |
genre |
Antarc* Antarctic Antarctica Polar Biology Ross Island Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Polar Biology Ross Island Victoria Land |
op_source |
Skotnicki , M L , Selkirk , P M & Ninham , J A 1998 , ' RAPD analysis of genetic variation and dispersal of the moss Bryum pseudotriquetrum from Southern Victoria Land, Antarctica ' , Polar Biology , vol. 20 , no. 2 , pp. 121-126 . https://doi.org/10.1007/s003000050285 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s003000050285 |
container_title |
Polar Biology |
container_volume |
20 |
container_issue |
2 |
container_start_page |
121 |
op_container_end_page |
126 |
_version_ |
1766266830067859456 |