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Phylogenetic relationships in the 'Pinnatella' clade of the moss family Neckeraceae (Bryophyta)
- Publication Year :
- 2010
-
Abstract
- The family Neckeraceae is composed of three distinct clades, of which two, i.e. the Neckera and Thamnobryum clades, are well defined. The third clade, consisting of species belonging to Caduciella, Curvicladium, Handeliobryum, Himantocladium, Homaliodendron, Hydrocryphaea, Neckera, Neckeropsis, Pinnatella, Shevockia and Taiwanobryum, is the focus of this study. Based on sequence data from the trnS-rps4-trnT-trnL-trnF plastid cluster and the rpl16 intron as well as from nuclear ITS1&2, the phylogenetic relationships of these genera are reconstructed. The nearest relatives of this clade are resolved shedding more light on the evolution of the family. The generic composition of the clade and its individual genera are discussed; polyphyly requires redefinition of Pinnatella, Neckeropsis and Homaliodendron. The positions of Touwia and Homalia within the family are addressed in an additional analysis based on more extensive sequence data, and the corresponding new combinations are made. Several further taxonomic changes are proposed, including Circulifolium gen. nov., comprising the former Homaliodendron exiguum and H. microdendron.
- Subjects :
- 0106 biological sciences
biology
Phylogenetic tree
Pinnatella
education
15. Life on land
biology.organism_classification
010603 evolutionary biology
01 natural sciences
Thamnobryum
Homalia
Evolutionary biology
Polyphyly
Botany
Molecular phylogenetics
Neckeropsis
molecular systematics, mosses, evolution
Clade
118 Biological sciences
Ecology, Evolution, Behavior and Systematics
010606 plant biology & botany
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....4dad5d6465294cb4d093f1e3dca80328