Testing Morphological Concepts of Orders of Pleurocarpous Mosses (Bryophyta) Using Phylogenetic Reconstructions Based on TRNL-TRNF and RPS4 Sequences

Buck, William R.; Goffinet, Bernard; Shaw, A. Jonathan

doi:10.1006/mpev.2000.0805

Cited by 108 publications

(56 citation statements)

References 33 publications

(43 reference statements)

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“…Although the monophyly of pleurocarpous mosses (homocostate pleurocarps sensu Bell et al 2007) is beyond doubt and consistently resolved with moderate to high support in multigene analyses (e.g., Beckert et al 2001;Bell et al 2007;Cox et al 2000;Cox & Hedderson 1999;Quandt et al 2007) we observe a considerable lack of resolution and support among the various pleurocarpous lineages (e.g., Buck et al 2000;Goffinet et al 2001;Ignatov et al 2007;Tsubota et al 2002). This is especially evident in species-rich and/or single marker analyses where phylogenies of homocostate pleurocarps notoriously turn out as bushes instead of trees.…”

Section: ¤ ¤ ¤mentioning

confidence: 69%

“…The highly supported monophyletic Thamnobryaceae (cf. Buck & Vitt 1986) are nested among the traditional Neckeraceae and Leptodontaceae and should therefore also be included in the Neckeraceae as already suggested by Enroth and Tan (1994) and Buck (1998). The placement of Anomodon giraldii within the Neckeraceae was already suggested by Tsubota et al (2002), but we refrain from transferring the species to a new or existing Neckeraceae genus as the sampling of the Neckeraceae is presently too small and the phylogenetic position therefore too uncertain.…”

Section: Discussionmentioning

confidence: 79%

“…In contrast to previous molecular studies on other pleurocarpous families the Leskeaceae have been reported scattered all over the trees suggesting that ''the Leskeaceae in the traditional circumscription is rather a concept than a taxon'' , which is also indicated in the present analysis. Few molecular-based attempts have been made to elucidate the relationships among hypnalean families, and with limited success due to the low phylogenetic signal of the traditional markers (Buck et al 2000;Ignatov et al 2007;Tsubota et al 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Some authors, such as Wu et al (2002) have recognized that taxon as an independent family, the Anomodontaceae, and included Miyabea in it. However, Buck and Goffinet (2000) as well as Goffinet et al (2009) followed Brotherus's original concept and thought Miyabea was best placed in the Leskeaceae, even if the family's definition and circumscription differed considerably from Brotherus' concept.…”

Section: ¤ ¤ ¤mentioning

confidence: 98%

“…This is especially evident in species-rich and/or single marker analyses where phylogenies of homocostate pleurocarps notoriously turn out as bushes instead of trees. However, the problem of identifying natural groups is not unique to molecular systematics as bryologists throughout the last century consistently faced this challenge while recognizing lineages solely based on the interpretation of morphological traits (e.g., Buck & Vitt 1986;Hedenäs 1995). The classification of pleurocarpous mosses even at the family level is in fact difficult, due to convergent evolution and homoplasy of morphological characters (Hedenäs 2007;Huttunen et al 2004;Quandt et al 2009).…”

Section: ¤ ¤ ¤mentioning

confidence: 99%

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Phylogenetic analyses reveal high levels of polyphyly among pleurocarpous lineages as well as novel clades

Olsson¹,

Buchbender²,

Enroth

et al. 2009

The Bryologist

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ABSTRACT. Phylogenetic analyses of the Hypnales usually show the same picture of poorly resolved trees with a large number of polyphyletic taxa and low support for the few reconstructed clades. One odd clade, however, consisting of three genera that are currently treated either within the Leskeaceae (Miyabea) or Neckeraceae (Homaliadelphus and Bissetia), was retrieved in a previously published phylogeny based on chloroplast rbcL. In order to elucidate the reliability of the observed Homaliadelphus -Miyabea -Bissetia -clade (HMB-clade) and to reveal its phylogenetic relationships a molecular study based on a representative set of hypnalean taxa was performed. Sequence data from all three genomes, namely the ITS1 and 2 (nuclear), the trnS-rps4-trnT-trnL-trnF cluster (plastid), the nad5 intron (mitochondrial), were analyzed. Although the phylogenetic reconstruction of the combined data set was not fully resolved regarding the backbone it clearly indicated the polyphyletic nature of various hypnalean families, such as the Leskeaceae, Hypnaceae, Hylocomiaceae, Neckeraceae, Leptodontaceae and Anomodontaceae with respect to the included taxa. In addition the results favor the inclusion of the Leptodontaceae and Thamnobryaceae in the Neckeraceae. The maximally supported HMB-clade consisting of the three genera Homaliadelphus (2-3 species), Miyabea (3 species) and Bissetia (1 species) is resolved sister to a so far unnamed clade comprising Taxiphyllum aomoriense, Glossadelphus ogatae and Leptopterigynandrum. The well-resolved and supported HMBclade, here formally described as the Miyabeaceae, fam. nov. is additionally supported by morphological characters such as strongly incrassate, porose leaf cells, a relatively weak and diffuse costa and the presence of dwarf males. The latter are absent in the Neckeraceae and the Leskeaceae. It is essentially an East Asian family, with one species occurring in North America.

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Section: ¤ ¤ ¤mentioning

confidence: 69%

Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: ¤ ¤ ¤mentioning

confidence: 98%

Section: ¤ ¤ ¤mentioning

confidence: 99%

See 3 more Smart Citations

Phylogenetic analyses reveal high levels of polyphyly among pleurocarpous lineages as well as novel clades

Olsson¹,

Buchbender²,

Enroth

et al. 2009

The Bryologist

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The Evolution of Body Form in Bryophytes

Goffinet

Buck

2012

Annual Plant Reviews Volume 45

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The Evolution of Body Form in Bryophytes

Goffinet

Buck

2018

Annual Plant Reviews Online

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Bryophytes compose a paraphyletic group of land plants that mark the successful transition to land and paved the way for the evolution of plants with highly differentiated vascular tissues and multiple sporangia. Like all embryophytes, bryophytes follow a life cycle of alternating haploid and diploid generations, and hence, rely on the same fundamental set of genetic tools to develop their body. The vegetative plant of bryophytes is always the sex‐bearing gametophyte, and upon fertilization, the embryo develops into a short‐lived, unbranched sporophyte that remains attached to the maternal plant. Over the last 400 million years, bryophytes have undergone continuous and sometimes rapid diversification, leading to nearly 20 000 species exhibiting a broad range of vegetative architecture based on a simple modular Bauplan and critical innovations enhancing spore dispersal through time and space, and thereby insuring their persistence and ecological success.

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Testing Morphological Concepts of Orders of Pleurocarpous Mosses (Bryophyta) Using Phylogenetic Reconstructions Based on TRNL-TRNF and RPS4 Sequences

Cited by 108 publications

References 33 publications

Phylogenetic analyses reveal high levels of polyphyly among pleurocarpous lineages as well as novel clades

Phylogenetic analyses reveal high levels of polyphyly among pleurocarpous lineages as well as novel clades

The Evolution of Body Form in Bryophytes

The Evolution of Body Form in Bryophytes

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