Global Biodiversity Patterns of the Photobionts Associated with the Genus Cladonia (Lecanorales, Ascomycota).
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s00248-020-01633-3.pdf
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1.88 MB
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Resource type
Journal article
Date published
November 4, 2020
Abstract
The diversity of lichen photobionts is not fully known. We studied here the diversity of the photobionts associated with , a sub-cosmopolitan genus ecologically important, whose photobionts belong to the green algae genus . The genetic diversity of was screened by using the ITS rDNA and actin type I regions in 223 specimens and 135 species of collected all over the world. These data, added to those available in GenBank, were compiled in a dataset of altogether 545 sequences occurring in 172 species of . A high diversity of associated with was found. The commonest photobiont lineages associated with this genus are , , and . Analyses of partitioned variation were carried out in order to elucidate the relative influence on the photobiont genetic variation of the following factors: mycobiont identity, geographic distribution, climate, and mycobiont phylogeny. The mycobiont identity and climate were found to be the main drivers for the genetic variation of . The geographical distribution of the different lineages was described. Some lineages showed a clear dominance in one or several climatic regions. In addition, the specificity and the selectivity were studied for 18 species of . Potentially specialist and generalist species of were identified. A correlation was found between the sexual reproduction frequency of the host and the frequency of certain OTUs. Some lineages co-occur with higher frequency than randomly expected in the species.
Funder
| Funder name | Awards |
Royal Botanic Gardens, Kew, Great Britain | FLF Program |
Ministerio de Ciencia e Innovación, Spain | Juan de la Cierva-Incorporación 2015-23526 |
European Commission, European Union | SYNTHESYS ES-TAF-922 |
Journal title
Microbial Ecology
Volume
82
Publisher
Springer Science and Business Media LLC
Place of publication
Berlin/Heidelberg, Germany
ISSN
0095-3628
eISSN
1432-184X
Date accepted
October 22, 2020
Official URL
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In Copyright