Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis
Lindblom, L. & Søchting, U. 2013. Genetic diversity of the photobiont of the bipolar lichen-forming ascomycete Xanthomendoza borealis. - Herzogia 26: 307–322.The objective of this study was to analyse the genetic diversity in the symbiotic partner (photobiont) of the bipolar lichen-forming ascom...
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Bryological and Lichenological Association for Central Europe
2013
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ftbioone:10.13158/heia.26.2.2013.307 2024-06-02T07:55:56+00:00 Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis Louise Lindblom Ulrik Søchting Louise Lindblom Ulrik Søchting world 2013-12-01 text/HTML https://doi.org/10.13158/heia.26.2.2013.307 en eng Bryological and Lichenological Association for Central Europe doi:10.13158/heia.26.2.2013.307 All rights reserved. https://doi.org/10.13158/heia.26.2.2013.307 Text 2013 ftbioone https://doi.org/10.13158/heia.26.2.2013.307 2024-05-07T01:03:34Z Lindblom, L. & Søchting, U. 2013. Genetic diversity of the photobiont of the bipolar lichen-forming ascomycete Xanthomendoza borealis. - Herzogia 26: 307–322.The objective of this study was to analyse the genetic diversity in the symbiotic partner (photobiont) of the bipolar lichen-forming ascomycete Xanthomendoza borealis. We also examined whether the mycobiont's photobiont choice could shed light on the origin of the bipolar geographic distribution. Twenty-seven new sequences of the partial ITS1 - 5.8S - partial ITS2 (ITS) of the photobiont of X. borealis were analysed. The molecular marker identifies the photobiont as the unicellular green alga Trebouxia. A total of 18 haplotypes were recovered. Genetic diversity and haplotype richness levels of the photobiont are lower in Antarctica than in regions of the northern hemisphere. Xanthomendoza borealis has the ability to use algae from at least three phylogenetic lineages of the genus Trebouxia as photobiont, that is, expresses low selectivity. The ‘photobiont-pool’ seems to be shared with several other lichen-forming ascomycetes, for example, species of Cetraria, Flavocetraria, Lecidea and Rinodina. This supports the hypothesis that lichen-forming fungi especially in harsh climates have a strategy of low selectivity. Text Antarc* Antarctica BioOne Online Journals Herzogia 26 2 307 322 |
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Lindblom, L. & Søchting, U. 2013. Genetic diversity of the photobiont of the bipolar lichen-forming ascomycete Xanthomendoza borealis. - Herzogia 26: 307–322.The objective of this study was to analyse the genetic diversity in the symbiotic partner (photobiont) of the bipolar lichen-forming ascomycete Xanthomendoza borealis. We also examined whether the mycobiont's photobiont choice could shed light on the origin of the bipolar geographic distribution. Twenty-seven new sequences of the partial ITS1 - 5.8S - partial ITS2 (ITS) of the photobiont of X. borealis were analysed. The molecular marker identifies the photobiont as the unicellular green alga Trebouxia. A total of 18 haplotypes were recovered. Genetic diversity and haplotype richness levels of the photobiont are lower in Antarctica than in regions of the northern hemisphere. Xanthomendoza borealis has the ability to use algae from at least three phylogenetic lineages of the genus Trebouxia as photobiont, that is, expresses low selectivity. The ‘photobiont-pool’ seems to be shared with several other lichen-forming ascomycetes, for example, species of Cetraria, Flavocetraria, Lecidea and Rinodina. This supports the hypothesis that lichen-forming fungi especially in harsh climates have a strategy of low selectivity. |
author2 |
Louise Lindblom Ulrik Søchting |
format |
Text |
author |
Louise Lindblom Ulrik Søchting |
spellingShingle |
Louise Lindblom Ulrik Søchting Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
author_facet |
Louise Lindblom Ulrik Søchting |
author_sort |
Louise Lindblom |
title |
Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
title_short |
Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
title_full |
Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
title_fullStr |
Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
title_full_unstemmed |
Genetic Diversity of the Photobiont of the Bipolar Lichen-Forming Ascomycete Xanthomendoza borealis |
title_sort |
genetic diversity of the photobiont of the bipolar lichen-forming ascomycete xanthomendoza borealis |
publisher |
Bryological and Lichenological Association for Central Europe |
publishDate |
2013 |
url |
https://doi.org/10.13158/heia.26.2.2013.307 |
op_coverage |
world |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
https://doi.org/10.13158/heia.26.2.2013.307 |
op_relation |
doi:10.13158/heia.26.2.2013.307 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.13158/heia.26.2.2013.307 |
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Herzogia |
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26 |
container_issue |
2 |
container_start_page |
307 |
op_container_end_page |
322 |
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1800752128100139008 |