Local adaptations in bryophytes revisited: the genetic structure of the calcium-tolerant peatmoss Sphagnum warnstorfii along geographic and pH gradients.
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| Title: | Local adaptations in bryophytes revisited: the genetic structure of the calcium-tolerant peatmoss Sphagnum warnstorfii along geographic and pH gradients. |
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| Authors: | Mikulášková, Eva1, Hájek, Michal1,2, Veleba, Adam1, Johnson, Matthew G.3, Hájek, Tomáš4, Shaw, Jonathan A.5 |
| Source: | Ecology & Evolution (20457758). Jan2015, Vol. 5 Issue 1, p229-242. 14p. |
| Subject Terms: | *Peat mosses, *Bryophyte ecology, *Species hybridization, *Calcium, Microsatellite repeats |
| Abstract: | Bryophytes dominate some ecosystems despite their extraordinary sensitivity to habitat quality. Nevertheless, some species behave differently across various regions. The existence of local adaptations is questioned by a high dispersal ability, which is thought to redistribute genetic variability among populations. Although Sphagnum warnstorfii is an important ecosystem engineer in fen peatlands, the causes of its rather wide niche along the pH/calcium gradient are poorly understood. Here, we studied the genetic variability of its global populations, with a detailed focus on the wide pH/calcium gradient in Central Europe. Principal coordinates analysis of 12 polymorphic microsatellite loci revealed a significant gradient coinciding with water pH, but independent of geography; even samples from the same fens were clearly separated along this gradient. However, most of the genetic variations remained unexplained, possibly because of the introgression from phylogenetically allied species. This explanation is supported by the small heterogeneous cluster of samples that appeared when populations morphologically transitional to S. subnites, S. rubellum, or S. russowii were included into the analysis. Alternatively, this unexplained variation might be attributed to a legacy of glacial refugia with recently dissolved ecological and biogeographic consequences. Isolation by distance appeared at the smallest scale only (up to 43 km). Negative spatial correlations occurred more frequently, mainly at long distances (up to 950 km), implying a genetic similarity among samples which are very distant geographically. Our results confirm the high dispersal ability of peatmosses, but simultaneously suggested that their ability to cope with a high pH/calcium level is at least partially determined genetically, perhaps via specific physiological mechanisms or a hummock-forming ability. [ABSTRACT FROM AUTHOR] |
| Copyright of Ecology & Evolution (20457758) 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.) | |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 100256706 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Local adaptations in bryophytes revisited: the genetic structure of the calcium-tolerant peatmoss Sphagnum warnstorfii along geographic and pH gradients. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mikulášková%2C+Eva%22">Mikulášková, Eva</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hájek%2C+Michal%22">Hájek, Michal</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Veleba%2C+Adam%22">Veleba, Adam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Johnson%2C+Matthew+G%2E%22">Johnson, Matthew G.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hájek%2C+Tomáš%22">Hájek, Tomáš</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Shaw%2C+Jonathan+A%2E%22">Shaw, Jonathan A.</searchLink><relatesTo>5</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Jan2015, Vol. 5 Issue 1, p229-242. 14p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Peat+mosses%22">Peat mosses</searchLink><br />*<searchLink fieldCode="DE" term="%22Bryophyte+ecology%22">Bryophyte ecology</searchLink><br />*<searchLink fieldCode="DE" term="%22Species+hybridization%22">Species hybridization</searchLink><br />*<searchLink fieldCode="DE" term="%22Calcium%22">Calcium</searchLink><br /><searchLink fieldCode="DE" term="%22Microsatellite+repeats%22">Microsatellite repeats</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Bryophytes dominate some ecosystems despite their extraordinary sensitivity to habitat quality. Nevertheless, some species behave differently across various regions. The existence of local adaptations is questioned by a high dispersal ability, which is thought to redistribute genetic variability among populations. Although Sphagnum warnstorfii is an important ecosystem engineer in fen peatlands, the causes of its rather wide niche along the pH/calcium gradient are poorly understood. Here, we studied the genetic variability of its global populations, with a detailed focus on the wide pH/calcium gradient in Central Europe. Principal coordinates analysis of 12 polymorphic microsatellite loci revealed a significant gradient coinciding with water pH, but independent of geography; even samples from the same fens were clearly separated along this gradient. However, most of the genetic variations remained unexplained, possibly because of the introgression from phylogenetically allied species. This explanation is supported by the small heterogeneous cluster of samples that appeared when populations morphologically transitional to S. subnites, S. rubellum, or S. russowii were included into the analysis. Alternatively, this unexplained variation might be attributed to a legacy of glacial refugia with recently dissolved ecological and biogeographic consequences. Isolation by distance appeared at the smallest scale only (up to 43 km). Negative spatial correlations occurred more frequently, mainly at long distances (up to 950 km), implying a genetic similarity among samples which are very distant geographically. Our results confirm the high dispersal ability of peatmosses, but simultaneously suggested that their ability to cope with a high pH/calcium level is at least partially determined genetically, perhaps via specific physiological mechanisms or a hummock-forming ability. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ecology & Evolution (20457758) 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: 10.1002/ece3.1351 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 229 Subjects: – SubjectFull: Peat mosses Type: general – SubjectFull: Bryophyte ecology Type: general – SubjectFull: Species hybridization Type: general – SubjectFull: Calcium Type: general – SubjectFull: Microsatellite repeats Type: general Titles: – TitleFull: Local adaptations in bryophytes revisited: the genetic structure of the calcium-tolerant peatmoss Sphagnum warnstorfii along geographic and pH gradients. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mikulášková, Eva – PersonEntity: Name: NameFull: Hájek, Michal – PersonEntity: Name: NameFull: Veleba, Adam – PersonEntity: Name: NameFull: Johnson, Matthew G. – PersonEntity: Name: NameFull: Hájek, Tomáš – PersonEntity: Name: NameFull: Shaw, Jonathan A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2015 Type: published Y: 2015 Identifiers: – Type: issn-print Value: 20457758 Numbering: – Type: volume Value: 5 – Type: issue Value: 1 Titles: – TitleFull: Ecology & Evolution (20457758) Type: main |
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