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Research Article
Dhanasekaran Dharumadurai
Bharathidasan University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6391-1464
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A lichen is a composite organism formed of algae or cyanobacteria that live in a mutually advantageous symbiotic relationship with the filaments (hyphae) of fungus. Three lichen samples were obtained from diverse sites at Kuppanasamy temple, Pollachi, a terrestrial habitat located in Coimbatore, Nithiravilai, Nagercoil, and Ramarpatham, Vedaranyam, both coastal habitats located in Kanyakumari and Nagapattinam districts of Tamil Nadu, for this study. Amplification and sequencing of 16S rRNA V3 - V4 regions were used for metagenomic study. Aside from the NGS data, distinct types of lichen microbiome profiles were clearly shown. The bacterial diversity in the lichen genera of Roccella montagnei growing in coastal and terrestrial environments was further investigated using common and unique operational taxonomic units (OTUs) and the QIIME pipeline (1.9.1). By using similarity clustering, the heat map analysis depicts the abundance information of chosen OTUs as well as the similarity and difference between OTUs and lichen samples. Using multiple methods, the Alpha and Beta diversity analysis revealed that there were differences in all of the samples. However, UPGMA tree inference of comparable bacterial community in coastal habitat lichen samples compared to terrestrial habitat validates their evolutionary lineage. As a result, the bacterial population associated with corticolous lichen is dependent on geographic locations, growth substrate, and climatic circumstances of similar lichen genera produced in different habitats and tree substrates.
Keywords
Lichen, Roccella montagnei, microbiome, 16S rRNA V3-V4 regions, OTUs, QIIME
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CURRENT STATUS: Under Review
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Posted 29 Oct, 2021
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Received 29 Oct, 2021
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On 29 Oct, 2021
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On 28 Oct, 2021
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Version 1
Posted 26 Oct, 2021
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Editorial decision: Minor revisions
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This preprint is under consideration at Archives of Microbiology. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Dhanasekaran Dharumadurai
Bharathidasan University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6391-1464
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version (no preprint)
Posted 29 Oct, 2021
Reviews received
Received 29 Oct, 2021
Reviewers invited
Invitations sent on 29 Oct, 2021
Editor assigned
On 29 Oct, 2021
First submitted
On 28 Oct, 2021
Editorial decision: Minor revisions
On 19 Sep, 2021
Version 1
Posted 26 Oct, 2021
No community comments so far
First submitted
On 04 Oct, 2021
Editorial decision: Minor revisions
On 19 Sep, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Molecular Biology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
A lichen is a composite organism formed of algae or cyanobacteria that live in a mutually advantageous symbiotic relationship with the filaments (hyphae) of fungus. Three lichen samples were obtained from diverse sites at Kuppanasamy temple, Pollachi, a terrestrial habitat located in Coimbatore, Nithiravilai, Nagercoil, and Ramarpatham, Vedaranyam, both coastal habitats located in Kanyakumari and Nagapattinam districts of Tamil Nadu, for this study. Amplification and sequencing of 16S rRNA V3 - V4 regions were used for metagenomic study. Aside from the NGS data, distinct types of lichen microbiome profiles were clearly shown. The bacterial diversity in the lichen genera of Roccella montagnei growing in coastal and terrestrial environments was further investigated using common and unique operational taxonomic units (OTUs) and the QIIME pipeline (1.9.1). By using similarity clustering, the heat map analysis depicts the abundance information of chosen OTUs as well as the similarity and difference between OTUs and lichen samples. Using multiple methods, the Alpha and Beta diversity analysis revealed that there were differences in all of the samples. However, UPGMA tree inference of comparable bacterial community in coastal habitat lichen samples compared to terrestrial habitat validates their evolutionary lineage. As a result, the bacterial population associated with corticolous lichen is dependent on geographic locations, growth substrate, and climatic circumstances of similar lichen genera produced in different habitats and tree substrates.
Figure 1
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
This is a list of supplementary files associated with this preprint. Click to download.
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