Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota)

Publikation: KonferencebidragKonferenceabstrakt til konferenceForskning

Standard

Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota). / Pérez-Ortega, S.; Søchting, Ulrik; Printzen, C.

2007. Abstract fra Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota), Vienna, Østrig.

Publikation: KonferencebidragKonferenceabstrakt til konferenceForskning

Harvard

Pérez-Ortega, S, Søchting, U & Printzen, C 2007, 'Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota)', Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota), Vienna, Østrig, 20/02/2007 - 23/02/2007.

APA

Pérez-Ortega, S., Søchting, U., & Printzen, C. (2007). Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota). Abstract fra Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota), Vienna, Østrig.

Vancouver

Pérez-Ortega S, Søchting U, Printzen C. Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota). 2007. Abstract fra Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota), Vienna, Østrig.

Author

Pérez-Ortega, S. ; Søchting, Ulrik ; Printzen, C. / Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota). Abstract fra Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota), Vienna, Østrig.

Bibtex

@conference{1ad7d790a68011dcbee902004c4f4f50,
title = "Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota)",
abstract = "Lichens are symbiotic organisms, where a fungus–generally a member of the Ascomycota – and a photobiont – generally a green algae – interact closely in a widespread life form strategy. Recently, numerous studies have focused on the genetic diversity and phylogenetic relationships of the fungal partner of the symbiosis. Meanwhile, knowledge about photobiont diversity and the degree of photobiont selectivity of the fungus have been lacking behind. The Lecanora varia group is a set of species within the genus Lecanora defined by the presence of an amphitecial cortex along with the presence of usnic acid as secondary metabolite. We have focused on a small group of three species, namely L. varia, L. burgaziae, and L. densa which share very similar anatomical and morphological characters and an identical chemistry, with psoromic and 2-O-demethylpsoromic acids in addition to usnic acid. We have collected populations of these three species from various localities within their distributional range: L varia (Spain, Austria, Sweden, Czech Republic, western Siberia); L. burgaziae (Spain) and L. densa (North America and Spain). Subsequently, we sequenced the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to assess the degree of genetic variability within the phobobionts present. A high degree of variability was found among the photobionts of sampled specimens. Not only different lineages but also different photobiont species were detected. No correlation between lichen species and photobiont lineages was found. However, there is a high correlation between the geographical origin of samples and the photobiont lineages.",
author = "S. P{\'e}rez-Ortega and Ulrik S{\o}chting and C. Printzen",
year = "2007",
language = "English",
note = "Genetic diversity within lichen photobionts of the <em>Lecanora</em> <em>varia</em> group (Lichenes, Ascomycota) ; Conference date: 20-02-2007 Through 23-02-2007",

}

RIS

TY - ABST

T1 - Genetic diversity within lichen photobionts of the Lecanora varia group (Lichenes, Ascomycota)

AU - Pérez-Ortega, S.

AU - Søchting, Ulrik

AU - Printzen, C.

PY - 2007

Y1 - 2007

N2 - Lichens are symbiotic organisms, where a fungus–generally a member of the Ascomycota – and a photobiont – generally a green algae – interact closely in a widespread life form strategy. Recently, numerous studies have focused on the genetic diversity and phylogenetic relationships of the fungal partner of the symbiosis. Meanwhile, knowledge about photobiont diversity and the degree of photobiont selectivity of the fungus have been lacking behind. The Lecanora varia group is a set of species within the genus Lecanora defined by the presence of an amphitecial cortex along with the presence of usnic acid as secondary metabolite. We have focused on a small group of three species, namely L. varia, L. burgaziae, and L. densa which share very similar anatomical and morphological characters and an identical chemistry, with psoromic and 2-O-demethylpsoromic acids in addition to usnic acid. We have collected populations of these three species from various localities within their distributional range: L varia (Spain, Austria, Sweden, Czech Republic, western Siberia); L. burgaziae (Spain) and L. densa (North America and Spain). Subsequently, we sequenced the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to assess the degree of genetic variability within the phobobionts present. A high degree of variability was found among the photobionts of sampled specimens. Not only different lineages but also different photobiont species were detected. No correlation between lichen species and photobiont lineages was found. However, there is a high correlation between the geographical origin of samples and the photobiont lineages.

AB - Lichens are symbiotic organisms, where a fungus–generally a member of the Ascomycota – and a photobiont – generally a green algae – interact closely in a widespread life form strategy. Recently, numerous studies have focused on the genetic diversity and phylogenetic relationships of the fungal partner of the symbiosis. Meanwhile, knowledge about photobiont diversity and the degree of photobiont selectivity of the fungus have been lacking behind. The Lecanora varia group is a set of species within the genus Lecanora defined by the presence of an amphitecial cortex along with the presence of usnic acid as secondary metabolite. We have focused on a small group of three species, namely L. varia, L. burgaziae, and L. densa which share very similar anatomical and morphological characters and an identical chemistry, with psoromic and 2-O-demethylpsoromic acids in addition to usnic acid. We have collected populations of these three species from various localities within their distributional range: L varia (Spain, Austria, Sweden, Czech Republic, western Siberia); L. burgaziae (Spain) and L. densa (North America and Spain). Subsequently, we sequenced the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to assess the degree of genetic variability within the phobobionts present. A high degree of variability was found among the photobionts of sampled specimens. Not only different lineages but also different photobiont species were detected. No correlation between lichen species and photobiont lineages was found. However, there is a high correlation between the geographical origin of samples and the photobiont lineages.

M3 - Conference abstract for conference

T2 - Genetic diversity within lichen photobionts of the <em>Lecanora</em> <em>varia</em> group (Lichenes, Ascomycota)

Y2 - 20 February 2007 through 23 February 2007

ER -

ID: 1760899