Phylogenetic Relationships among the Mosses Based on Heterogeneous Bayesian Analysis of Multiple Genes from Multiple Genomic Compartments

Cox, Cymon J.; Goffinet, Bernard; Shaw, A. Jonathan; Boles, Sandra B.

doi:10.1600/036364404774195458

Cited by 100 publications

(114 citation statements)

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“…However, more significant than the difference in overall gametophyte architecture characterizing Ambuchanania are numerous unique anatomical features. Relationship of Sphagnopsida to other classes of phylum Bryophyta -Several previous molecular analyses (e.g., Newton et al, 2000 ;Nickrent et al, 2000 ;Cox et al, 2004 ;Qiu et al, 2006 ) have resolved Takakia as sister to Sphagnum , though rarely with high bootstrap support. That sister-group relationship was also resolved by all analytical models we employed for the 60-taxon, eight-locus data set presented here.…”

Section: Discussionmentioning

confidence: 99%

“…The 60-taxon data set includes 26 species of class Bryopsida, the " true " (peristomate) mosses. These represent all major clades of Bryopsida; the data set was used by Cox et al (2004) to resolve backbone relationships among mosses. As in that previous analysis , our data set also includes (in addition to Bryopsida) one sample each of Takakia (Takakiopsida), Andreaea (Andreaeopsida), and Andreaeobryum (Andreaeobryopsida).…”

Section: Methodsmentioning

confidence: 99%

“…We focus here on relationships of Ambuchanania to other species traditionally classifi ed in Sphagnum . Support for most other nodes on the tree are not shown; results from analyses of relationships within the class Bryopsida based on almost the same set of taxa and loci were described by Cox et al (2004) .…”

Section: Methodsmentioning

confidence: 99%

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Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)

Shaw

Cox

Buck

et al. 2010

American J of Botany

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Phylogenetic analyses of genome structure and nucleotide sequences from mitochondrial, plastid, and nuclear genes have corroborated the view held by botanists for over a century that the bryophyte groups (mosses, liverworts, hornworts) comprise early-diverging land plant lineages that originated before the appearance of vascular plants ( Haeckel, 1876 ;Campbell, 1895 ;Bower, 1935 ;Kenrick and Crane, 1997 ;Shaw and Renzaglia, 2004 ). Early cladistic analyses based on morphological characters ( Mishler and Churchill, 1984 ) showed that the three bryophyte groups, classifi ed by most botanists of the time as a single phylum because of their similar gametophyte-dominant life cycles, more likely represent a paraphyletic grade that diverged before the emergence of the vascular plants. In fact, Haeckel ' s (1876) tree similarly shows mosses and liverworts as a paraphyletic grade basal to the vascular plants. Recent data sets appear to favor the hypothesis that liverworts (phylum Marchantiophyta) comprise the earliest-diverging lineage, followed by the mosses (Bryophyta) and hornworts (Anthocerophyta) ( Qiu et al., 1998 ;Nickrent et al., 2000 ;Shaw and Renzaglia, 2004 ). However, the most data-rich studies to date, based on chloroplast or mitochondrial organellar proteins, like analyses based on sperm cell morphology ( Garbary et al., 1993 ), identify a clade uniting liverworts and mosses, and additional data are still needed before we can consider the branching order of early land plant lineages to be fi nally resolved ( Nishiyama et al., 2004 ;Rodr í guez-Ezpeleta et al., 2007 ;Terasawa et al., 2007 ; but see also Qiu, et al., 2006 ).Notwithstanding that much remains to do, great progress has been made toward resolving phylogenetic relationships within the mosses (phylum Bryophyta s.s.) (e.g., Cox and Hedderson, 1999 ;Cox et al., 2000 ;Newton et al., 2000 ; Goffi net et al., 2001 ;Stech and Frey, 2008 ; Goffi net et al., 2009 ;Wahrmund et al., 2010 ). Major clades resolved by molecular data to a large extent mirror previous classifi cations based on morphology (e.g., Fleischer, 1923 ; Brotherus, 1924 Brotherus, -1925Vitt, 1984 • Premise of the study : The Sphagnopsida, an early-diverging lineage of mosses (phylum Bryophyta), are morphologically and ecologically unique and have profound impacts on global climate. The Sphagnopsida are currently classifi ed in two genera, Sphagnum (peat mosses) with some 350 -500 species and Ambuchanania with one species. An analysis of phylogenetic relationships among species and genera in the Sphagnopsida were conducted to resolve major lineages and relationships among species within the Sphagnopsida.• Methods : Phylogenetic analyses of nucleotide sequences from the nuclear, plastid, and mitochondrial genomes (11 704 nucleotides total) were conducted and analyzed using maximum likelihood and Bayesian inference employing seven different substitution models of varying complexity.• Key results : Phylogenetic analyses resolved three lineages within the Sphagnopsida: (1) Sphagnum serice...

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)

Shaw

Cox

Buck

et al. 2010

American J of Botany

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“…However, brown or yellow spores are present in several groups, including Andreaea and Sphagnum, which are among those regarded as possible basal groups to all mosses (Cox et al 2004). Brownish colours could be related with plastid reduction, but at least in some cases it is due to the spore wall opacity (Horton, 1982;Estébanez et al 1997).…”

Section: Discussionmentioning

confidence: 99%

Ultrastructure of the spore in four Japanese species ofPtychomitriumFürnr. (Musci)

Estébanez

Yamaguchi

Deguchi

2006

Grana

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“…In particular, Sphagnum is an important and conspicuous component in peatlands, which perform a significant global function in regulating the Earth's atmospheric chemistry as well as providing valuable economic commodities (Rochefort 2000). Sphagnum holds an interesting position amongst mosses, with Cox et al (2004) indicating that Sphagnum and Takakia form a clade sister to all remaining mosses. The paper by Pressel et al (2010) is a comprehensive and fascinating review of fungal symbioses in bryophytes.…”

Section: Figure 2 Leiosporoceros Dussiimentioning

confidence: 99%

A special issue of Phytotaxa dedicated to Bryophytes: The closest living relatives of early land plants

Konrat¹,

Shaw²,

Renzaglia³

2014

Phytotaxa

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Phylogenetic Relationships among the Mosses Based on Heterogeneous Bayesian Analysis of Multiple Genes from Multiple Genomic Compartments

Cited by 100 publications

References 40 publications

Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)

Newly resolved relationships in an early land plant lineage: Bryophyta class Sphagnopsida (peat mosses)

Ultrastructure of the spore in four Japanese species ofPtychomitriumFürnr. (Musci)

A special issue of Phytotaxa dedicated to Bryophytes: The closest living relatives of early land plants

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