A phylogeny of the northern temperate leafy liverwort genus Scapania (Scapaniaceae, Jungermanniales).
Scapania is a northern temperate genus with a few disjunctions in the south. Despite receiving considerable attention, the supraspecific classification of this genus remains unsatisfactorily solved. We use three molecular markers (nrITS, cpDNA trnL-F region, atpB-rbcL spacer) and 175 accessions belonging to 50 species (plus eight outgroup taxa) to estimate the phylogeny and to test current classification systems. Our data support the classification of Scapania into six rather than three subgenera, rearrangements within numerous sections, and inclusion of Macrodiplophyllum microdontum. Scapania species with a plicate perianth form three early diverging lineages; the most speciose subgenus, Scapania s.str., represents a derived clade. Most morphological species concepts are supported by the molecular topologies but classification of sect. Curtae requires further study. Southern lineages are nested in northern hemispheric clades. Palearctic-Nearctic distribution ranges are supported for several species.
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Related Subject Headings
- Phylogeny
- Multilocus Sequence Typing
- Hepatophyta
- Evolutionary Biology
- DNA, Plant
- 3109 Zoology
- 3105 Genetics
- 3104 Evolutionary biology
- 0608 Zoology
- 0604 Genetics
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Phylogeny
- Multilocus Sequence Typing
- Hepatophyta
- Evolutionary Biology
- DNA, Plant
- 3109 Zoology
- 3105 Genetics
- 3104 Evolutionary biology
- 0608 Zoology
- 0604 Genetics