On the systematic position of Leptodictyum Mizushimae(Bryophyta)

Ignatov,; Kuznetzova, Oxana I.; Czernyadjeva, I. V.

doi:10.15298/arctoa.23.15

Cited by 7 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many of them have been widely used because they look conspicuous and are easily observed. The molecular phylogenetic approach to taxonomy has already revealed many cases where morphological characters have been overvalued, overturning assumptions about the importance of, for example, the "Isobryalean peristome" (Buck et al, 2000;Tsubota et al, 2002), Neckera-like undulate leaves (Olsson et al, 2011), Drepanocladus-like falcatesecund leaves with a costa (Vanderpoorten et al, 2002); Hypnum-like falcate-secund leaves without a costa (Gardiner et al, 2005;Arikava et al, 2008;Câmara et al, 2018;Schlesak et al, 2018), and a dendroid growth-form (Ignatov et al, 2014). In this paper we will try to address one more such character, the papillosity of the laminal cells.…”

Section: Introductionmentioning

confidence: 99%

On the taxonomy of Anomodontaceae and Heterocladium (Bryophyta)

Ignatov

Fedorova

Fedosov

2019

Arctoa, a jornal of bryology

View full text Add to dashboard Cite

A molecular phylogenetic analysis based on nuclear ITS, plastid trnS-F, rpl16, atpB-rbcL and mitochondrial nad5 revealed polyphyly in the genus Anomodon, and therefore its segregation into four genera is proposed. The largest clade includes A. viticulosus, the generitype of Anomodon, and all species with a broadly rounded leaf apex, including those with both pluripapillose (A. minor, A. thraustus, A. dentatus) and pseudounipapillose (A. abbreviatus, A. solovjovii) laminal cells. The species of Haplohymenium form a sister clade to Anomodon; however this clade is always maximally supported in Bayesian analyses, and thus Haplohymenium merits taxonomic recognition as a genus of its own. Two closely related species, Anomodon attenuatus and A. giraldii, were found deeply nested in the Neckeraceae, and thus they are segregated in the genus Pseudanomodon (Limpr.) Ignatov & Fedosov. Anomodon rugelii was found to be distant from the core Anomodon clade and is segregated into a new genus Anomodontopsis Ignatov & Fedosov within the Anomodontaceae. Anomodon longifolius has an erratic position in various analyses, appearing basal in the Anomodontaceae clade or sister to the A. rugelii clade in the organellar trees, or in a clade with Heterocladium dimorphum, closer to the Neckeraceae than to the Anomodontaceae, in the tree inferred from nuclear ITS. It is therefore referred to the new genus Anomodontella Ignatov & Fedosov in the Anomodontaceae. Likewise, Heterocladium species form two clades, centered around H. dimorphum and H. heteropterum. The latter group is referred to Lembophyllaceae, while H. dimorphum and related species form a fairly isolated group and are segregated in their own genus Heterocladiella Ignatov & Fedosov in the monogeneric family Heterocladiellaceae Ignatov & Fedosov. The genus Herpetineuron is excluded from the Anomodontaceae. Резюме Молекулярно-филогенетический анализ, основанный на последовательностях ITS ядерной ДНК, trnS-F, rpl16 и atpB-rbcL хлоропластной ДНК и nad5 митохондриальной ДНК, выявил полифилетичность рода Anomodon; предложено разделить его на 4 рода. Самая крупная клада молекулярно-филогенетического дерева включает A. viticulosus, который является типовым видом рода Anomodon, и все виды с широко закругленной верхушкой листа, как с мультипапиллозными клетками пластинки (A. minor, A. thraustus, A. dentatus), так и с "псевдоунипапиллозными" (A. abbreviatus и A. solovjovii). Виды рода Haplohymenium образуют кладу, сестринскую кладе Anomodon s.str.; эта клада имеет максимальную поддержку по результатам Байесова анализа, из чего следует, что Haplohymenium заслуживает таксономический статус самостоятельного рода. Два близкородственных вида, Anomodon attenuatus и A. giraldii, во всех реконструкциях оказываются в одной кладе с видами, относящимися к семейству Neckeraceae (вместе с Homalia trichomanoides); эти два вида выделены в отдельный род Pseudanomodon (Limpr.) Ignatov & Fedosov. Во всех вариантах анализа Anomodon rugelii занимает сестринское положение к высоко поддержанной кладе Anomodon s.st...

show abstract

Section: Introductionmentioning

confidence: 99%

On the taxonomy of Anomodontaceae and Heterocladium (Bryophyta)

Ignatov

Fedorova

Fedosov

2019

Arctoa, a jornal of bryology

View full text Add to dashboard Cite

show abstract

“…Thus, use of gene sequence data has become rather the norm when identification of a difficult specimen is equivocal. One result of the increased use of molecular data for addressing taxonomic questions at and above the family level in bryophytes, is a lowering of the precision and consistency of morphological definitions of families or orders (Ignatov & Huttunen, ; Ignatov et al, , ; Crandall‐Stotler et al, ). Thus, the limits of taxa at these ranks, as circumscribed based on morphology, are becoming blurry.…”

Section: Methodsmentioning

confidence: 99%

“…Such is the case for the transfer of the non‐dendroid Limnohypnum Ignatov & Czernjad. from Amblystegiaceae to Climaciaceae (Ignatov et al, ); of Jaffueliobryum Thér. from Grimmiaceae to Ptychomitriaceae (Hernández‐Maqueda et al, ); of Anacamptodon from Fabroniaceae to Amblystegiaceae (Vanderpoorten et al, ); of Alsia from Cryphaeaceae to Neckeraceae (Tsubota et al, ); and of the Erpodiaceae from Hypnales to Dicranales (Frey & Stech, ; Goffinet et al, ).…”

Section: Introductionmentioning

confidence: 99%

How to rely on the unreliable: Examples from Mesozoic bryophytes of Transbaikalia

Mamontov

Ignatov

2019

J of Sytematics Evolution

Self Cite

View full text Add to dashboard Cite

Three new fossil bryophytes are described from Jurassic and Lower Cretaceous deposits of the Transbaikalia region of Russia. The complex thalloid hepatic Khasurtythallus monosolenioides gen. et sp. nov. belongs to the Marchantiidae, but its combination of characters precludes unequivocal placement in any of the five orders of this subclass, representing most likely an extinct lineage. Paleaethallus squarrosus gen. et sp. nov. is a thalloid plant with scales similar to those of complex thalloid hepatics, although their arrangement and the overall plant structure has little in common with any extant hepatics. Dispersed moss capsules, three of which have attached calyptrae, are described as a form genus Kulindobryum gen. nov. Despite incomplete preservation, some rare characters indicate possible relationship to the genus Tayloria of the Splachnaceae, an extant family of mosses adapted to grow on animal dung, dead bodies and bones. Notably, Kulindobryum co‐occurs with bones of the small feathered dinosaurs Kulindadromeus, which also supports an affiliation of Kulindobryum with the Splachnaceae. The most common and best known Mesozoic moss for the region, the genus Bryokhutuliinia, is appraised for its systematic position and probable affinities with the Dicranales. A scoring approach is introduced for the comparative method of taxonomic placement of fossils with partial suites of morphological characters at the family or order level.

show abstract

“…Rhizomnium pseudopunctatum: according to [95], records of this species from Khm and Sah belong to R. magnifolium.…”

Section: Stereodon (Brid) Mitt [Pylaisiaceae]mentioning

confidence: 99%

Mosses of the southern Russian Far East, an annotated check-list

Cherdantseva¹,

Pisarenko²,

Ignatov³

et al. 2018

Bot Pac

Self Cite

View full text Add to dashboard Cite

The checklist of mosses of the southern part of the Russian Far East includes 816 species and 10 infraspecific taxa with references on their distribution in seven floristic regions within Primorsky and Khabarovsky Territories, Amurskaya and Sakhlinskaya Provinces and Evreiskaya Autonomous District. Seventy one species are excluded in the course of the checklist compilation, and 59 are commented as doubtful and erroneously reported from some of the Far Eastern regions, while 8 of them doubtful for the southern part of Russian Far East in general.

show abstract

On the systematic position of Leptodictyum Mizushimae(Bryophyta)

Cited by 7 publications

References 29 publications

On the taxonomy of Anomodontaceae and Heterocladium (Bryophyta)

On the taxonomy of Anomodontaceae and Heterocladium (Bryophyta)

How to rely on the unreliable: Examples from Mesozoic bryophytes of Transbaikalia

Mosses of the southern Russian Far East, an annotated check-list

Contact Info

Product

Resources

About