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Assessing gene flow between Dicranum scoparium Hedw. and D. bonjeanii De Not. (Dicranaceae) using single nucleotide polymorphisms (SNPs)

Klink, Jan Marynus Arie LU orcid ; Cronberg, Nils LU orcid ; Lang, Annick LU and Stech, Michael (2024) In Botanical Journal of the Linnean Society
Abstract
While hybridisation in vascular plants has received considerable attention, hybridisation in bryophytes is still relatively understudied. Here we investigate hybridisation between two species from the moss genus Dicranum Hedw. Dicranum scoparium Hedw. and D. bonjeanii De Not. are two moss species of the D. scoparium species complex with partially overlapping morphology and habitat ranges. This study aimed to investigate a potential hybridisation pathway between the two species by using single nucleotide polymorphisms (SNP), morphologically identifying the sex of the specimens and analysing potential sex-specific SNP markers, focusing on southern Sweden. The species differ by D. scoparium being polymorphic and D. bonjeanii monomorphic for... (More)
While hybridisation in vascular plants has received considerable attention, hybridisation in bryophytes is still relatively understudied. Here we investigate hybridisation between two species from the moss genus Dicranum Hedw. Dicranum scoparium Hedw. and D. bonjeanii De Not. are two moss species of the D. scoparium species complex with partially overlapping morphology and habitat ranges. This study aimed to investigate a potential hybridisation pathway between the two species by using single nucleotide polymorphisms (SNP), morphologically identifying the sex of the specimens and analysing potential sex-specific SNP markers, focusing on southern Sweden. The species differ by D. scoparium being polymorphic and D. bonjeanii monomorphic for the used SNP markers. The SNP markers genetically separate D. scoparium and D. bonjeanii specimens, although admixture between the species was observed on a limited scale. This admixture appears to originate from unidirectional fertilisation of D. bonjeanii by D. scoparium (with a genome skewed towards D. scoparium as a result), possibly followed by back-crossing of first-generation hybrids with D. scoparium. Male expressing specimens were completely absent in the D. bonjeanii samples, making a fertilisation of D. bonjeanii by males of D. scoparium more likely. No sex-specificity was observed in the used SNP markers. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Botanical Journal of the Linnean Society
article number
boae081
pages
10 pages
publisher
Oxford University Press
ISSN
1095-8339
DOI
10.1093/botlinnean/boae081
language
English
LU publication?
yes
id
ba3382d4-5fff-4f8c-bce9-889554102fe1
date added to LUP
2025-01-03 11:01:27
date last changed
2025-04-04 13:57:26
@article{ba3382d4-5fff-4f8c-bce9-889554102fe1,
  abstract     = {{While hybridisation in vascular plants has received considerable attention, hybridisation in bryophytes is still relatively understudied. Here we investigate hybridisation between two species from the moss genus Dicranum Hedw. Dicranum scoparium Hedw. and D. bonjeanii De Not. are two moss species of the D. scoparium species complex with partially overlapping morphology and habitat ranges. This study aimed to investigate a potential hybridisation pathway between the two species by using single nucleotide polymorphisms (SNP), morphologically identifying the sex of the specimens and analysing potential sex-specific SNP markers, focusing on southern Sweden. The species differ by D. scoparium being polymorphic and D. bonjeanii monomorphic for the used SNP markers. The SNP markers genetically separate D. scoparium and D. bonjeanii specimens, although admixture between the species was observed on a limited scale. This admixture appears to originate from unidirectional fertilisation of D. bonjeanii by D. scoparium (with a genome skewed towards D. scoparium as a result), possibly followed by back-crossing of first-generation hybrids with D. scoparium. Male expressing specimens were completely absent in the D. bonjeanii samples, making a fertilisation of D. bonjeanii by males of D. scoparium more likely. No sex-specificity was observed in the used SNP markers.}},
  author       = {{Klink, Jan Marynus Arie and Cronberg, Nils and Lang, Annick and Stech, Michael}},
  issn         = {{1095-8339}},
  language     = {{eng}},
  month        = {{12}},
  publisher    = {{Oxford University Press}},
  series       = {{Botanical Journal of the Linnean Society}},
  title        = {{Assessing gene flow between Dicranum scoparium Hedw. and D. bonjeanii De Not. (Dicranaceae) using single nucleotide polymorphisms (SNPs)}},
  url          = {{http://dx.doi.org/10.1093/botlinnean/boae081}},
  doi          = {{10.1093/botlinnean/boae081}},
  year         = {{2024}},
}