Phylogeny of Ptychostomum (Bryaceae, Musci) inferred from sequences of nuclear ribosomal DNA internal transcribed spacer (ITS) and chloroplast rps4

Abstract

The phylogeny of Ptychostomum was first undertaken based on analysis of the internal transcribed spacer (ITS) region of the nuclear ribosomal (nr) DNA and by combining data from nrDNA ITS and chloroplast DNA rps4 sequences. Maximum parsimony, maximum likelihood, and Bayesian analyses all support the conclusion that the reinstated genus Ptychostomum is not monophyletic. Ptychostomum funkii (Schwägr.) J. R. Spence (≡Bryum funkii Schwägr.) is placed within a clade containing the type species of Bryum, B. argenteum Hedw. The remaining members of Ptychostomum investigated in the present study constitute another well‐supported clade. The results are congruent with previous molecular analyses. On the basis of phylogenetic evidence, we agree with transferring B. amblyodon Müll. Hal. (≡B. inclinatum (Brid.) Turton ≡Bryum archangelicum Bruch & Schimp.), Bryum lonchocaulon Müll. Hal., Bryum pallescens Schleich. ex Schwägr., and Bryum pallens Sw. to Ptychostomum.

Elevational patterns of genetic variation in the cosmopolitan mossBryum argenteum(Bryaceae)

“…9KC493853KC4939602870 m 1 Bryum argenteum MUB 40280—Spain, Granada provinceN 37.07153 W 003.37355hap. 13KC493857KC493965 Bryum apiculatum Schwägr. Bryum apiculatum HBNUWang and Zhao (2009)China, Yunnan province——EU878213FJ593892 Bryum funckii Mitt. Bryum funckii HBNUWang and Zhao (2009)China, Hunan province——EU878209AY078332 Bryum recurvulum Schwägr. Bryum recurvulum HBNUWang and Zhao (2009)China, Hebei province——EU878217FJ593887 Bryum yuennanense Broth. Bryum yuennanense HBNUWang and Zhao (2009)China, Yunnan province——EU878211FJ593890…”

Efficient Discrimination of Some Moss Species by Fourier Transform Infrared Spectroscopy and Chemometrics

“…Therefore, we use the region (1800 to 400) cm −1 for the FSD extraction of spectral features. Pohlia cruda (1), Bryum argenteum (5), and Mnium spinosum (8) are the type species of genera Pohlia, Bryum and Mnium. In order to further identify them, FSD is used to deal with the FTIR spectra of the three species.…”

“…The taxonomic concepts and phylogenetic relations among genera of the families Mielichhoferiaceae, Bryaceae, and Mniaceae have given rise to much controversy in recent years [4]. Studies using nuclear, plastid, and mitochondrial sequences showed that many genera of the Mielichhoferioideae and Bryaceae families are polyphyletic [5][6][7][8]. Some species of Mielichhoferiaceae, Bryaceae, and Mniaceae are difficult to distinguish by traditional phytotaxonomic methods.…”

“…A phylogenetic analysis of random amplified polymorphic DNA (RAPD) markers showed that Pohlia was more closely related to the genera of Mniaceae than Bryaceae [4]. However, Wang et al declared that Pohlia should not be classified in the Mniaceae and was indicated to be a closer relative of genera Mielichhofera (Mielichhoferioideae) [8,10]. Fourier transform infrared (FTIR) spectroscopy is an alternative method for species discrimination, which has already been demonstrated for medicinal plants, bacteria, fungi, and microorganisms [11][12][13][14].…”

“…3D plot of FTIR spectra of the 16 moss species based on PCA. FSD-FTIR spectra in the 1800-400 cm −1 region in the whole plants of Pohlia cruda (1), Bryum argenteum(5), and Mnium spinosum(8). Characteristic transmittance bands are indicated at the bottom.…”