| Title: |
An infrageneric classification of the genus Lejeunea (Marchantiophyta: Lejeuneaceae) using molecular phylogeny and morphology |
| Authors: |
Lee, Gaik Ee; Gradstein, S. Robbert; He, Xiaolan; Bechteler, Julia; Schäfer-Verwimp, Alfons; Pócs, Tamás |
| Contributors: |
Botany and Mycology Unit; Embryophylo |
| Publisher Information: |
Societe Royale de Botanique de Belgique |
| Publication Year: |
2026 |
| Collection: |
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
| Subject Terms: |
Ecology; evolutionary biology; Lejeunea subgenus Crossotolejeunea; Lejeunea subgenus Lejeunea; Classification; Liverworts; Molecular phylogeny; Morphology; Taxonomy |
| Description: |
Background and aims – The genus Lejeunea, with about 375 accepted species, is one of the most species-rich and intricate genera of liverworts. Here, we present the first integrative, worldwide infrageneric classification of Lejeunea based on morphology and molecular-phylogenetic analyses. Material and methods – Maximum likelihood analysis and Bayesian inference of sequences from two chloroplast regions (trnL-trnF, rbcL) and the nuclear ITS region of about 35% of the species, combined with morphological evidence. Key results and conclusions – The phylogenetic analyses revealed numerous robust clades within two major lineages, corresponding to subgenera Lejeunea and Crossotolejeunea. Integrating molecular phylogenetic evidence and morphological data, we describe 15 sections: four in subg. Lejeunea (sect. Glaucescentes, sect. Lamacerinae, sect. Lejeunea, sect. Macrolejeunea) and 11 in subg. Crossotolejeunea (sect. Apolejeunea, sect. Crossotolejeunea, sect. Echinocolea, sect. Flavae, sect. Heterolejeunea, sect. Inflatolejeunea, sect. Minutilobae, sect. Nanolejeunea, sect. Papillolejeunea, sect. Sordidae, sect. Xenantholejeunea). Four sections have a neotropical distribution, three are pantropical, two are pantropical and extend into temperate regions, two are Afro-American, two are Asian, one is Asian-Australasian, and one has a tropical amphi-Pacific range. ; Peer reviewed |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
We express our gratitude to the directors and curators of the herbaria E, EGR, G, GOET, JE, and UKMB for the loan of specimens and the permission to extract DNA. The study of the first author was supported by the Universiti Malaysia Terengganu through the Research Intensified Research Grant Scheme (UMT/RIGS/2023/55437), Alexander von Humboldt Foundation, a SYNTHESYS+ grant (FI-TAF-8303) for visiting the Finnish Museum of Natural History (LUOMUS) in Helsinki, Finland, for studying Lejeunea from Papua New Guinea, and the Academic Staff Mobility Grant 2024 from the Embassy of France to Malaysia for studying Lejeunea in the French overseas territories. We also thank Des Callaghan and Hermann Schachner for photographs and Alain Vanderpoorten for his comments on the manuscript.; https://hdl.handle.net/10138/629232; 001715031600001 |
| Availability: |
https://hdl.handle.net/10138/629232 |
| Rights: |
cc_by ; info:eu-repo/semantics/openAccess ; openAccess |
| Accession Number: |
edsbas.7DDEB4DB |
| Database: |
BASE |