A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications

Carvalho‐Silva, Micheline; Stech, Michael; Soares-Silva, Lucia Helena; Buck, William R.; Wickett, Norman J.; Liu, Yang; Câmara, Paulo Eduardo Aguiar Saraiva

doi:10.12705/664.2

Cited by 36 publications

(38 citation statements)

References 45 publications

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“…Sematophyllaceae Broth. reúne 28 gêneros de musgos pleurocárpicos (Goffinet et al 2009;Carvalho-Silva et al 2017), dos quais 15 foram registrados no Brasil, assim como 53 espécies (Costa & Peralta 2015). Os membros dessa família são identificados pelos ramos monopodiais, filídios geralmente ecostados, raramente com uma costa curta e dupla, células da lâmina geralmente lineares, lisas ou papilosas, células alares diferenciadas, frequentemente infladas, com coloração alaranjada a dourada, cápsulas com células exoteciais colenquimatosas, opérculo obliquamente longo-rostrado e dentes do perístoma estriados (Gradstein et al 2001;Buck 1998;2003;Goffinet et al 2009).…”

Section: Sematophyllaceaeunclassified

“…Nas cangas da Serra dos Carajás foram registradas sete espécies distribuídas em quatro gêneros. (Carvalho-Silva et al 2017). Duas espécies foram registradas no Brasil e são reconhecidas pelos filídios homômalos, ovalados a oblongo-ovalados, ápice agudo ou curto-acuminado, costa ausente, células da lâmina longo-romboidais, lisas, porosas, de paredes firmes a grossas, mais curtas e romboidais no acúmen, células alares aumentadas, fracamente infladas ou não, coloridas (Carvalho-Silva et al 2017).…”

Section: Sematophyllaceaeunclassified

“…Este é um gênero monotípico com distribuição no México e Caribe, norte da América do Sul, Brasil central e África tropical (Carvalho-Silva et al 2017). Caracteriza-se pelo caulídio procumbente, subpinados a pinados, filídios ovalados a subovalado-acuminados, células alares conspícuas (Mitten 1869).…”

Section: Microcalpe (Mitt) Wrbuckunclassified

“…Gênero pantropical com cerca de 130 espécies de maior distribuição na Ásia Tropical (Gradstein et al 2001). No Brasil são reconhecidas 10 espécies (Costa & Peralta 2015;Carvalho-Silva et al 2017). Ocorrem geralmente sobre troncos em decomposição, húmus e solo (Gradstein et al 2001).…”

Section: Trichosteleum Mittunclassified

“…(Costa & Peralta 2015). Os membros desse gênero são identificados pelos filídios do ramo primário e secundários similares, nunca homômalos, eretos, oblongo-ovalados a ovalados, margens reflexas perto da metade do filídio, células medianas lineares, células alares aumentadas, infladas e coloridas (Carvalho-Silva et al 2017). pl.…”

Section: Trichosteleum Papillosum (Hornsch)unclassified

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Flora das cangas da Serra dos Carajás, Pará, Brasil: Sematophyllaceae

Oliveira-da-Silva

Ilkiu–Borges

2018

Rodriguésia

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Section: Sematophyllaceaeunclassified

Section: Microcalpe (Mitt) Wrbuckunclassified

Section: Trichosteleum Mittunclassified

Section: Trichosteleum Papillosum (Hornsch)unclassified

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Flora das cangas da Serra dos Carajás, Pará, Brasil: Sematophyllaceae

Oliveira-da-Silva

Ilkiu–Borges

2018

Rodriguésia

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A phylogenetic revision of the genus Hypnum: Towards completion

Kučera

Kuznetsova

Manukjanová

et al. 2019

TAXON

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The taxonomy of pleurocarpous mosses has long been based on a few key characters such as the presence or absence of a single costa or the posture of the leaves. Molecular analyses performed in the past two decades have often challenged the traditional familial and generic delimitations, as these simple characters have evolved repeatedly. For nearly a century the genus Hypnum has been defined principally by the combination of falcate leaves with a short double costa, differentiated alar cells and the mostly procumbent growth form. Although several earlier treatments revealed the polyphyly of Hypnum in its traditional sense, none of them included a representative selection of the species on a worldwide basis. Therefore, we sampled most of the taxa that were attributed to the genus by the monographer H. Ando, and performed a molecular phylogenetic analysis using DNA sequence data from two chloroplast loci and the nuclear ribosomal ITS region. The outcome of this analysis was a revision of the phylogenetic affinities of these representative taxa; we also matched more than 15 molecularly defined lineages of Hypnum s.l. to morphological characters and solved several nomenclatural problems. Consequently, we suggest taxonomic and nomenclatural re-arrangements, which encompass the vast majority of taxa attributed to Hypnum and do not contradict their known molecular affinities. We deliver additional support for some of the most recent delimitations of Hypnum s.l. but introduce new data to refute the proposals for the segregation of the genera Lignocariosa and Insomniella, which can be accommodated in the existing genera Pseudohygrohypnum and Calohypnum, respectively. Similarly, we dispute the inclusion of Hypnum sauteri in Anacamptodon and propose the establishment of a new genus for this species. Instead of placing Callicladium in the Hypnaceae and Jochenia in the Entodontaceae, respectively, we propose new families for these two genera. Finally, we propose three other new genera to accommodate (1) Hypnum circinale, (2) H. chrysogaster with H. subchrysogaster, and (3) H. dieckii, respectively. The main diagnostic features of Hypnum in earlier treatments are shown to represent broadly distributed homoplastic characters, correlated with adaptation to the habitat conditions, such as the moisture content.

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Phylogenetic inferences reveal deep polyphyly of Aongstroemiaceae and Dicranellaceae within the haplolepideous mosses (Dicranidae, Bryophyta)

Santos

Fedosov

Hartman

et al. 2021

TAXON

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Haplolepideous moss systematics has been through major changes based on morpho-molecular studies. However, many taxa remain little studied with still unclear circumscriptions and relationships among the traditionally recognized families. We inferred the phylogenetic relationships of the haplolepideous mosses based on a sample of 37 out of the 38 haplolepideous moss families and using mitochondrial (nad5 G1 intron) and chloroplast (trnS-rps4 spacer/rps4 gene and trnL gene/trnL-trnF spacer) markers. The resolved relationships indicate the need for rearrangements in the circumscription of the Aongstroemiaceae and Dicranellaceae and their genera, which correspond to the variation of morphological characters of leaf shape, rhizoid tuber morphology, and capsule and peristome traits. The two families, although historically considered morphologically close, were resolved as separate lineages in the core haplolepideous clade. The genera Aongstroemia and Dicranella were resolved as polyphyletic across the clades corresponding to the families Aongstroemiaceae and Dicranellaceae and other clades. The characterization of Aongstroemia by julaceous plants is not supported; the three species sampled here belong in three separate families and differ from one another in other (more stable) characters, such as the presence and shape of peristome teeth. Regarding Dicranella, the sampling of 13 of its 167 species suggests the broad morphological variation comprised by the genus under its current circumscription might be narrowed down to smaller ranges corresponding to the phylogenetically separate clades. The present molecular data furthermore suggest changes in the composition of the protohaplolepideous Dicranidae grade, including one Dicranella clade, a new lineage with a ditrichoid morphology, but excluding the Chrysoblastellaceae, which were resolved in the core haplolepideous clade. The latter finding implies the independent evolution of the rare double-opposite peristome type in both the protohaplolepideous grade and the core haplolepideous clade. Keywords haplolepideous mosses; nad5 G1 intron; polyphyly; phylogenetics; trnS-trnF Supporting Information may be found online in the Supporting Information section at the end of the article.

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A molecular phylogeny of the Sematophyllaceae s.l. (Hypnales) based on plastid, mitochondrial and nuclear markers, and its taxonomic implications

Cited by 36 publications

References 45 publications

Flora das cangas da Serra dos Carajás, Pará, Brasil: Sematophyllaceae

Flora das cangas da Serra dos Carajás, Pará, Brasil: Sematophyllaceae

A phylogenetic revision of the genus Hypnum: Towards completion

Phylogenetic inferences reveal deep polyphyly of Aongstroemiaceae and Dicranellaceae within the haplolepideous mosses (Dicranidae, Bryophyta)

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