Genome‐wide differentiation corresponds to climatic niches in two species of lichen‐forming fungi.
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| Title: | Genome‐wide differentiation corresponds to climatic niches in two species of lichen‐forming fungi. |
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| Authors: | Wong, Edgar L. Y.1,2,3 (AUTHOR) edgar.wong@senckenberg.de, Valim, Henrique F.1,2,3 (AUTHOR), Schmitt, Imke1,2,3 (AUTHOR) |
| Source: | Environmental Microbiology. Oct2024, Vol. 26 Issue 10, p1-16. 16p. |
| Subjects: | Population differentiation, Climatic zones, Gene frequency, Genomics, Alleles |
| Abstract: | Lichens can withstand fluctuating environmental conditions such as hydration‐desiccation cycles. Many species distribute across climate zones, suggesting population‐level adaptations to conditions such as freezing and drought. Here, we aim to understand how climate affects population genomic patterns in lichenized fungi. We analysed population structure along elevational gradients in closely related Umbilicaria phaea (North American; two gradients) and Umbilicaria pustulata (European; three gradients). All gradients showed clear genomic breaks splitting populations into low‐elevation (Mediterranean zone) and high‐elevation (cold temperate zone). A total of 3301 SNPs in U. phaea and 138 SNPs in U. pustulata were driven to fixation between the two ends of the gradients. The difference between the species is likely due to differences in recombination rate: the sexually reproducing U. phaea has a higher recombination rate than the primarily asexually reproducing U. pustulata. Cline analysis revealed allele frequency transitions along all gradients at approximately 0°C, coinciding with the transition between the Mediterranean and cold temperate zones, suggesting freezing is a strong driver of population differentiation. Genomic scans further confirmed temperature‐related selection targets. Both species showed similar differentiation patterns overall, but different selected alleles indicate convergent adaptation to freezing. Our results enrich our knowledge of fungal genomic functions related to temperature and climate, fungal population genomics, and species responses to environmental heterogeneity. [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Microbiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 180474088 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Genome‐wide differentiation corresponds to climatic niches in two species of lichen‐forming fungi. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wong%2C+Edgar+L%2E+Y%2E%22">Wong, Edgar L. Y.</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> edgar.wong@senckenberg.de</i><br /><searchLink fieldCode="AR" term="%22Valim%2C+Henrique+F%2E%22">Valim, Henrique F.</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schmitt%2C+Imke%22">Schmitt, Imke</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Microbiology%22">Environmental Microbiology</searchLink>. Oct2024, Vol. 26 Issue 10, p1-16. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Population+differentiation%22">Population differentiation</searchLink><br /><searchLink fieldCode="DE" term="%22Climatic+zones%22">Climatic zones</searchLink><br /><searchLink fieldCode="DE" term="%22Gene+frequency%22">Gene frequency</searchLink><br /><searchLink fieldCode="DE" term="%22Genomics%22">Genomics</searchLink><br /><searchLink fieldCode="DE" term="%22Alleles%22">Alleles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Lichens can withstand fluctuating environmental conditions such as hydration‐desiccation cycles. Many species distribute across climate zones, suggesting population‐level adaptations to conditions such as freezing and drought. Here, we aim to understand how climate affects population genomic patterns in lichenized fungi. We analysed population structure along elevational gradients in closely related Umbilicaria phaea (North American; two gradients) and Umbilicaria pustulata (European; three gradients). All gradients showed clear genomic breaks splitting populations into low‐elevation (Mediterranean zone) and high‐elevation (cold temperate zone). A total of 3301 SNPs in U. phaea and 138 SNPs in U. pustulata were driven to fixation between the two ends of the gradients. The difference between the species is likely due to differences in recombination rate: the sexually reproducing U. phaea has a higher recombination rate than the primarily asexually reproducing U. pustulata. Cline analysis revealed allele frequency transitions along all gradients at approximately 0°C, coinciding with the transition between the Mediterranean and cold temperate zones, suggesting freezing is a strong driver of population differentiation. Genomic scans further confirmed temperature‐related selection targets. Both species showed similar differentiation patterns overall, but different selected alleles indicate convergent adaptation to freezing. Our results enrich our knowledge of fungal genomic functions related to temperature and climate, fungal population genomics, and species responses to environmental heterogeneity. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Microbiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/1462-2920.16703 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1 Subjects: – SubjectFull: Population differentiation Type: general – SubjectFull: Climatic zones Type: general – SubjectFull: Gene frequency Type: general – SubjectFull: Genomics Type: general – SubjectFull: Alleles Type: general Titles: – TitleFull: Genome‐wide differentiation corresponds to climatic niches in two species of lichen‐forming fungi. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wong, Edgar L. Y. – PersonEntity: Name: NameFull: Valim, Henrique F. – PersonEntity: Name: NameFull: Schmitt, Imke IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 14622912 Numbering: – Type: volume Value: 26 – Type: issue Value: 10 Titles: – TitleFull: Environmental Microbiology Type: main |
| ResultId | 1 |
