Caelestium genus novum (Polygonaceae, Polygoneae): evidence bаsed on the results of molecular phylogenetic analyses of tribe Polygoneae, established with consideration of the secondary structure of the ITS rDNA regions

2019 ◽  
pp. 47-79 ◽  
Author(s):  
O. V. Yurtseva ◽  
E. V. Mavrodiev
Keyword(s):  
Secondary Structure ◽  
Close Relationships ◽  
Plastid Genome ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Tien Shan ◽  
Hybrid Origin ◽  
Bayesian Analyses ◽  
Molecular Phylogenetic ◽  
Its1 And Its2

The genus Bactria, recently described to house Atraphaxis ovczinnikovii from the Pamirs and Bactria lazkovii from the Central Tien Shan, may also include Polygonum tianschanicum from the Eastern Tien Shan. In order to re-circumscribe Bactria and to clarify the place of Polygonum tianschanicum in tribe Polygoneae, we performed Maximum Likelihood (ML) and Bayesian analyses of combined regions of the plastid genome and ITS1–2 regions of nrDNA for 58 species of tribe Polygoneae, with special attention to the secondary structure of pre-rRNA of the ITS1 and ITS2 loci. In all our analyses, Bactria lazkovii and Polygonum tianschanicum formed a highly supported clade, sister to Bactria ovczinnikovii in the plastid trees, but separate from the latter, as well as from the remaining genera in the ITS-based trees. Details of the secondary structure of pre-rRNA of the ITS1 and ITS2 loci also confirmed the close relationships of Bactria lazkovii and Polygonum tianschanicum, quite different from Bactria ovczinnikovii. Based on the molecular analyses, details of the secondary structure of pre-rRNA of the ITS1 and ITS2 loci, fine morphological distinctions, and distributional data, we propose the new genus Caelestium Yurtseva et Mavrodiev, presumably of hybrid origin, to include C. lazkovii and C. tianschanicum.

Caelestium (Polygonaceae, Polygoneae), evidence bаsed on morphology

2019 ◽  
pp. 80-100 ◽  
Author(s):  
O. V. Yurtseva ◽  
G. A. Lazkov ◽  
U. A. Ukrainskaja ◽  
A. G. Deviatov
Keyword(s):  
Secondary Structure ◽  
New Genus ◽  
Life Form ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Tien Shan ◽  
Distribution Map ◽  
Molecular Analyses ◽  
Geographic Ranges ◽  
Its1 And Its2

Morphological characters and fruit anatomy were analysed for distinguishing the new genus Caelestium, containing C. lazkovii (= Bactria lazkovii), endemic of the Central Tien Shan (Kyrgyzstan), and C. tianschanicum (= Polygonum tianschanicum), endemic of the Eastern Tien Shan (Xinjiang, China), from the genus Bactria in its updated circumscription, now containing only B. ovczinnikovii, endemic of the Pamir (Tajikistan). The genus Caelestium was established based on the results of molecular analyses and the details of the secondary structure of pre-rRNA of the ITS1 and ITS2 loci, but its morphology is poorly known. The morphological characteristics of Bactria and Caelestium were compared, and the anatomy of fruit was examined for these taxa and some species of Persepolium and Atraphaxis. Caelestium lazkovii and C. tianschanicum share the morphology of their leaf blades, perianth, fruits and styles, but differ in the color of annual shoots, the size of the perianth and fruits. They resemble Bactria ovczinnikovii in their life form, morphology of shoots, ochreas, inflorescences, and sporoderm ornamentation, but differ from the latter in the shape of leaf blades, fruits, and styles, micromorphology of tepals, and exocarp structure. SEM and LM images illustrating morphological characters are provided. The geographic ranges of the taxa are presented on the distribution map. Morphological characteristics distinguishing Caelestium and Bactria from Atraphaxis, Persepolium, and Polygonum are discussed.

Asian Betylobraconinae (Hymenoptera, Braconidae), with description of a new genus and phylogenetic affinities of the tribe Facitorini

2008 ◽  
Vol 39 (2) ◽  
pp. 133-154 ◽  
Author(s):  
Alberto Sáez ◽  
Kaoru Maeto ◽  
Alejandro Zaldivar-Riverón ◽  
Sergey Belokobylskij
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
28S Rrna ◽  
Asian Region ◽  
Molecular Phylogenetic ◽  
Phylogenetic Affinities ◽  
One New Species ◽  
Rrna Sequences

AbstractThe taxonomy of the Asian genera of the subfamily Betylobraconinae, a small and understudied group within the hymenopteran family Braconidae, is revised. A new genus exclusively from the Asian region, Asiabregma gen. nov., containing three species (A. ryukyuensis sp. nov. (type species, Japan and Malaya), A. makiharai sp. nov. (Japan) and A. sulaensis (van Achterberg), comb. nov. (Indonesia)) is described. One new species of Aulosaphobracon, A. striatus sp. nov. from Vietnam, and one of Facitorus, F. amamioshimus sp. nov. from Japan, are also described. Based on molecular phylogenetic analyses using COI mtDNA and 28S rRNA sequences, the three genera previously placed in the tribe Facitorini, Facitorus, Conobregma and Jannya, together with Asiabregma gen. nov., are transferred to the rogadine tribe Yeliconini.

Crocinoboletus, a new genus of Boletaceae (Boletales) with unusual boletocrocin polyene pigments 

Phytotaxa ◽  
2014 ◽  
Vol 175 (3) ◽  
pp. 133 ◽  
Author(s):  
Nian-Kai Zeng ◽  
Gang Wu ◽  
Yan-Chun Li ◽  
Zhi-Qun Liang ◽  
Zhu-Liang Yang
Keyword(s):  
New Genus ◽  
Phylogenetic Analyses ◽  
Middle Part ◽  
Line Drawings ◽  
Molecular Phylogenetic ◽  
Orange Color

Crocinoboletus is described as a new genus of Boletaceae to accommodate Boletus rufoaureus and B. laetissimus, characterized by its brilliant orange color of basidiomata caused by the presence of unusual boletocrocin polyene pigments, bluish olivaceous staining of all parts when bruised, smooth basidiospores, and the pileipellis which has an interwoven trichoderm at the middle part of the pileus and a cutis at the margin of the pileus. Prior molecular phylogenetic analyses also confirmed the two taxa are not members of the genus Boletus s.s., but form a well-supported generic lineage within Boletaceae. Consequently a description, color photos of fresh basidiomata, line-drawings of microstructures and a comparison of Crocinoboletus with allied taxa are presented.

scholarly journals Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga

Phytotaxa ◽  
2015 ◽  
Vol 218 (2) ◽  
pp. 137 ◽  
Author(s):  
Huiyin Song ◽  
Qi Zhang ◽  
Guoxiang Liu ◽  
Zhengyu Hu
Keyword(s):  
Green Alga ◽  
New Genus ◽  
Cultured Cells ◽  
Phylogenetic Analyses ◽  
Light And Electron Microscopy ◽  
Molecular Data ◽  
Ribulose Bisphosphate Carboxylase ◽  
Bisphosphate Carboxylase ◽  
Molecular Phylogenetic ◽  
18S Rdna Gene

Coccoid green algae are abundant in subaerial habitats, but they are largely unexplored because of their morphological uniformity. Several new genus-level lineages have recently been described on the basis of molecular data. In this study, a coccoid green alga was isolated from surface soil in Zhoukou, Henan Province, China, and the cultured cells were described using light and electron microscopy. The ellipsoidal cell had smooth cell wall and parietal chloroplast with a pyrenoid surrounded by a starch envelope. Reproduction occurred by formation of 2‒16 autospores. Molecular phylogenetic analyses based on the nuclear 18S rDNA gene and the chloroplast ribulose-bisphosphate carboxylase gene (rbcL) indicated that this coccoid green alga represents a new lineage of the Watanabea clade (Trebouxiophyceae, Chlorophyta). Here, we describe this organism as a new genus and species, Polulichloris henanensis, gen. et sp. nov.

A molecular phylogenetic and DNA barcode assessment of the tribe Pterosiphonieae (Ceramiales, Rhodophyta) emphasizing the Northeast Pacific

Botany ◽  
2016 ◽  
Vol 94 (10) ◽  
pp. 917-939 ◽  
Author(s):  
Amanda M. Savoie ◽  
Gary W. Saunders
Keyword(s):  
South African ◽  
North American ◽  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Dna Barcode ◽  
Sensu Stricto ◽  
North American Species ◽  
African Species ◽  
Molecular Phylogenetic

Sequence data (COI-5P and rbcL) for North American members of the tribe Pterosiphonieae were compared with collections from around the world. Phylogenetic analyses resolved Pterosiphonia as polyphyletic and many species required transfer to other genera. In our analyses Pterosiphonia sensu stricto included only the type species P. cloiophylla (C. Agardh) Falkenberg and P. complanata (Clemente) Falkenberg, as well as the South African species P. stegengae sp. nov. A new genus, Xiphosiphonia gen. nov., was described for X. ardreana (Maggs & Hommersand) comb. nov., X. pennata (C. Agardh) comb. nov., and X. pinnulata (Kützing) comb. nov. Some Asian, European and North American species previously attributed to Pterosiphonia were transferred to Symphyocladia including S. baileyi (Harvey) comb. nov., S. dendroidea (Montagne) comb. nov., S. plumosa nom. nov. (for P. gracilis Kylin), and S. tanakae (S. Uwai & M. Masuda) comb. nov. We also described two new North American species, Symphyocladia brevicaulis sp. nov. and S. rosea sp. nov. Other species formed a well-supported clade for which the genus name Polyostea Ruprecht was resurrected. Included in Polyostea were P. arctica (J. Agardh) comb. nov., P. bipinnata (Postels & Ruprecht) Ruprecht, P. hamata (E.S. Sinova) comb. nov., and P. robusta (N.L. Gardner) comb. nov.

scholarly journals A new genus and species of natricine snake from northeast India

Zootaxa ◽  
2019 ◽  
Vol 4603 (2) ◽  
pp. 241 ◽  
Author(s):  
VARAD B. GIRI ◽  
DAVID J. GOWER ◽  
ABHIJIT DAS ◽  
H.T. LALREMSANGA ◽  
SAMUEL LALRONUNGA ◽  
...  
Keyword(s):  
New World ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
East Asian ◽  
Northeast India ◽  
Molecular Variation ◽  
New Genus And Species ◽  
Indian Populations ◽  
Western Palearctic ◽  
Molecular Phylogenetic

Based on the first molecular phylogenetic analyses of samples from northeast India, specimens referred to Rhabdops from this region are more closely related to the southeast and east Asian natricine genera Opisthotropis Günther, 1872 and Sinonatrix Rossman & Eberle, 1977 (as well as to New World and western Palearctic natricines) than to peninsular Indian (true) Rhabdops. Morphologically, these northeast Indian populations differ from other natricines by having a single (‘fused’ or unpaired) internasal shield and a single prefrontal shield. Given the morphological and phylogenetic distinctiveness of these northeast Indian populations, we refer them to a new genus, Smithophis gen. nov., and transfer Rhabdops bicolor (Blyth, 1854) to Smithophis bicolor comb. nov. Based on morphological and molecular variation within our northeast Indian sample, we additionally describe Smithophis atemporalis sp. nov. from the state of Mizoram.

Underestimated anuran radiations in the high Andes: five new species and a new genus of Holoadeninae, and their phylogenetic relationships (Anura: Craugastoridae)

2017 ◽  
Vol 182 (1) ◽  
pp. 129-172 ◽  
Author(s):  
Ignacio De la Riva ◽  
Juan C Chaparro ◽  
Santiago Castroviejo-Fisher ◽  
José M Padial
Keyword(s):  
New Species ◽  
Species Diversity ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Distribution Patterns ◽  
Southern Peru ◽  
The Andes ◽  
Close Relationship ◽  
Molecular Phylogenetic ◽  
Taxonomic Research

AbstractDespite recent efforts to accelerate exploration and species description, the diversity of high Andean frogs remains highly underestimated. We report high levels of species diversity in direct-developing frogs or terraranas inhabiting the wet puna and adjacent cloud forests of the Amazonian versant of the Andes in Bolivia and Peru. Descriptive evidence of external morphology, distribution patterns and molecular phylogenetic analyses support the existence of nine unnamed species in two clades, which represents a 30% increase in species diversity for those clades. The relationships of these species and their relatives in Holoadeninae are tested using nuclear and mitochondrial genes for 159 terminals representing the 11 genera in this subfamily and 25 species of previously unknown relationships. Our results corroborate species monophyly in all but three cases and support the monophyly of all Holoadeninae genera, albeit the position of some differs between analyses. We propose a new genus (Microkayla gen. nov.) for the clade containing all Bolivian species formerly in Psychrophrynella plus five species from southern Peru. The new genus is monophyletic and supported by anatomical synapomorphies. Psychrophrynella is re-diagnosed and redefined to include three species from the Andes of southern Peru. We discuss the taxonomic instability associated with Noblella and Psychrophrynella due to the fact that the type species of both genera share a number of traits that support a close relationship. We also name and describe three new species of Bryophryne and two of Microkayla from Peru, provide baseline data for the future description of four Bolivian species of Microkayla, and describe the unknown mating calls of two species. Our results support that the grasslands of the Amazonian versant of the Andes harbour a large diversity of species with small altitudinal and horizontal distributions that replace each other along a latitudinal axis. These species belong to different lineages whose closest relatives are forest species, often from distant parts of the continent. These patterns suggest that high Andean environments were colonized several times independently by species with forest ancestors and which radiated into a multitude of species with remarkably similar ecomorphologies. The extent of these radiations remains obscured by a still rudimentary knowledge of species diversity due to insufficient fieldwork and taxonomic research.

Palicella lueckingii (Lecanorales, Ascomycota), a new lichen species inhabiting Araucaria from the extratropical South America

Phytotaxa ◽  
2018 ◽  
Vol 344 (1) ◽  
pp. 24 ◽  
Author(s):  
PAMELA RODRIGUEZ-FLAKUS
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
South America ◽  
Gene Locus ◽  
Phylogenetic Analyses ◽  
Single Gene ◽  
Bayesian Analyses ◽  
Morphological Studies ◽  
Molecular Phylogenetic ◽  
Araucaria Araucana

Palicella lueckingii is a newly described corticolous lecideoid lichen from the Malalcahuelo National Reserve growing on the bark of Araucaria araucana in Chile. Detailed morphological studies and inference from molecular phylogenetic analyses, based on maximum likelihood and Bayesian analyses of single gene locus (ITS), clearly indicate that the new species is a member of the recently introduced genus Palicella. Palicella lueckingii is most closely related to P. glaucopa, but clearly differs in having smaller ascospores, comparatively thicker thallus, epruinose apothecia, lack of oil droplets inside of exciple and presence of thiophanic acid as a major metabolite.

scholarly journals Cibaomyces, a new genus of Physalacriaceae from East Asia

Phytotaxa ◽  
2014 ◽  
Vol 162 (4) ◽  
pp. 198 ◽  
Author(s):  
Hao Yan-Jia ◽  
Qin Jiao ◽  
Yang Zhu-Liang
Keyword(s):  
Ribosomal Rna ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Molecular Evidence ◽  
Internal Transcribed Spacer Region ◽  
Line Drawings ◽  
Phylogenetic Placement ◽  
Molecular Phylogenetic ◽  
Thin Walled

A new genus in Physalacriaceae, Cibaomyces, typified by C. glutinis, is described using morphological and molecular evidence. Cibaomyces is morphologically characterized by the combination of the following characters: basidioma small to medium-sized, collybioid to tricholomatoid; pileus viscid; hymenophore sinuate to subdecurrent, relatively distant, with brown lamellar edge; stipe sticky and densely covered with felted squamules; basidiospores thin-walled, ornamented with finger-like projections; cystidia nearly cylindrical, thin-walled, often heavily incrusted. Molecular phylogenetic analyses using DNA nucleotide sequences of the internal transcribed spacer region and the large subunit nuclear ribosomal RNA loci indicated that Cibaomyces was related to Gloiocephala, Laccariopsis and Rhizomarasmius. A description, line drawings, phylogenetic placement and comparison with allied taxa are presented. 

scholarly journals A new genus and four new species in the /Psathyrella s.l. clade from China

MycoKeys ◽  
2021 ◽  
Vol 80 ◽  
pp. 115-131
Author(s):  
Tolgor Bau ◽  
Jun-Qing Yan
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Single Species ◽  
Bayesian Analyses ◽  
Distinct Lineage

Based on traditional morphological and phylogenetic analyses (ITS, LSU, tef-1α and β-tub) of psathyrelloid specimens collected from China, four new species are here described: Heteropsathyrella macrocystidia, Psathyrella amygdalinospora, P. piluliformoides, and P. truncatisporoides. H. macrocystidia forms a distinct lineage and groups together with Cystoagaricus, Kauffmania, and Typhrasa in the /Psathyrella s.l. clade, based on the Maximum Likelihood and Bayesian analyses. Thus, the monospecific genus Heteropsathyrella gen. nov. is introduced for the single species. Detailed descriptions, colour photos, and illustrations are presented in this paper.

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