Phylogenetic Diversity of Peltigera Cyanolichens and Their Photobionts in Southern Chile and Antarctica
Author
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Zúñiga, Catalina
Author
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Leiva, Diego
Author
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Ramírez Fernández, Lía
Author
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Carú Marambio, Margarita
Author
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Yahr, Rebecca
Author
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Orlando, Julieta
Admission date
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2015-09-10T15:55:35Z
Available date
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2015-09-10T15:55:35Z
Publication date
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2015
Cita de ítem
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Microbes and Environments. Vol. 30 (2015) No. 2 p. 172-179
en_US
Identifier
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DOI: 10.1264/jsme2.ME14156
Identifier
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https://repositorio.uchile.cl/handle/2250/133568
General note
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Artículo de publicación ISI
en_US
Abstract
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The lichen genus Peltigera has been mainly revised in the Northern Hemisphere, with most species being recorded in Europe and North America. This study assessed the phylogenetic diversity of the mycobionts and cyanobionts of Peltigera cyanolichens collected in Southern Chile and Antarctica, areas in which lichens are extremely diverse but poorly studied. The operational taxonomic units (OTUs) of each symbiont were defined by analyzing the genetic diversity of the LSU and SSU rDNA of the mycobionts and cyanobionts, respectively, and a phylogenetic approach was used to relate these OTUs with sequences previously reported for Peltigera and Nostoc. Among the 186 samples collected, 8 Peltigera and 15 Nostoc OTUs were recognized, corresponding to sections Peltigera, Horizontales, and Polydactylon, in the case of the mycobionts, and to the Nostoc clade II, in the case of the cyanobionts. Since some of the OTUs recognized in this study had not previously been described in these areas, our results suggest that the diversity of Peltigera reported to date in the regions studied using traditional morphological surveys has underestimated the true diversity present; therefore, further explorations of these areas are recommended.
en_US
Patrocinador
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FONDECYT (National Fund for Scientific and Technological Development)
11100381