Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations
Abstract: Poa annua L. is the only non−native vascular plant that was successfully estab− lished in the maritime Antarctic. This project aimed to determine the amount of genetic and epigenetic variation within and between two populations of P. annua, one from South Shet− land Is. (Antarctic) and the...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.8206 http://eprints.ibb.waw.pl/278/1/fulltext.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.473.8206 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.473.8206 2023-05-15T14:03:01+02:00 Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations Katarzyna J. Chwedorzewska Piotr T. Bednarek Instytut Biochemii I Biofizyki Pan Zakład Biologii Antarktyki The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.8206 http://eprints.ibb.waw.pl/278/1/fulltext.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.8206 http://eprints.ibb.waw.pl/278/1/fulltext.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.ibb.waw.pl/278/1/fulltext.pdf Key words Antarctic Poa annua text ftciteseerx 2016-01-08T07:27:28Z Abstract: Poa annua L. is the only non−native vascular plant that was successfully estab− lished in the maritime Antarctic. This project aimed to determine the amount of genetic and epigenetic variation within and between two populations of P. annua, one from South Shet− land Is. (Antarctic) and the other one from Central Europe. We applied two AFLP marker systems, using endonucleases that recognised the same restriction site but differed in their sensitivity towards methylation. The Antarctic population differed from the Polish one both at the genetic and epigenetic levels. Genetic variability in the Antarctic population was lower than in the Polish one. Some loci in the Antarctic population showed signs of selec− tion. The difference between Polish and Antarctic populations might be due to a weak bot− tleneck effect followed by population expansion. Using only epigenetic markers, the Ant− arctic population exhibited increased variation level compared to the Polish one. These may have resulted from plastic responses to environmental factors and could be associated with survival in extreme conditions. Text Antarc* Antarctic Arctic Arctic Population Unknown Antarctic Arctic The Antarctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words Antarctic Poa annua |
spellingShingle |
Key words Antarctic Poa annua Katarzyna J. Chwedorzewska Piotr T. Bednarek Instytut Biochemii I Biofizyki Pan Zakład Biologii Antarktyki Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
topic_facet |
Key words Antarctic Poa annua |
description |
Abstract: Poa annua L. is the only non−native vascular plant that was successfully estab− lished in the maritime Antarctic. This project aimed to determine the amount of genetic and epigenetic variation within and between two populations of P. annua, one from South Shet− land Is. (Antarctic) and the other one from Central Europe. We applied two AFLP marker systems, using endonucleases that recognised the same restriction site but differed in their sensitivity towards methylation. The Antarctic population differed from the Polish one both at the genetic and epigenetic levels. Genetic variability in the Antarctic population was lower than in the Polish one. Some loci in the Antarctic population showed signs of selec− tion. The difference between Polish and Antarctic populations might be due to a weak bot− tleneck effect followed by population expansion. Using only epigenetic markers, the Ant− arctic population exhibited increased variation level compared to the Polish one. These may have resulted from plastic responses to environmental factors and could be associated with survival in extreme conditions. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Katarzyna J. Chwedorzewska Piotr T. Bednarek Instytut Biochemii I Biofizyki Pan Zakład Biologii Antarktyki |
author_facet |
Katarzyna J. Chwedorzewska Piotr T. Bednarek Instytut Biochemii I Biofizyki Pan Zakład Biologii Antarktyki |
author_sort |
Katarzyna J. Chwedorzewska |
title |
Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
title_short |
Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
title_full |
Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
title_fullStr |
Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
title_full_unstemmed |
Genetic and epigenetic variation in a cosmopolitan grass Poa annua from Antarctic and Polish populations |
title_sort |
genetic and epigenetic variation in a cosmopolitan grass poa annua from antarctic and polish populations |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.8206 http://eprints.ibb.waw.pl/278/1/fulltext.pdf |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Arctic Population |
genre_facet |
Antarc* Antarctic Arctic Arctic Population |
op_source |
http://eprints.ibb.waw.pl/278/1/fulltext.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.8206 http://eprints.ibb.waw.pl/278/1/fulltext.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766273467010777088 |