Two new combinations in the genus Panus (Panaceae, Polyporales) based on morphology and molecular phylogeny

Phytotaxa ◽  
2021 ◽  
Vol 514 (3) ◽  
pp. 287-294
Author(s):  
VINJUSHA N. ◽  
T. K. ARUN KUMAR
Keyword(s):  
Molecular Phylogeny ◽  
Molecular Data ◽  
New Combinations ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Morphological And Molecular Data ◽  
Taxonomic Studies

Panus is a genus of the order Polyporales with a gilled hymenium. Although Panus was earlier considered as a sub genus of the genus Lentinus, molecular phylogenetic studies support the independent status of the genus. As a result, many species were transferred from Lentinus to Panus. Many more species of Lentinus that are more related to Panus, still await critical taxonomic studies and formal transfers. Morphological and molecular data obtained from L. bambusinus and L. roseus reveal that these are Panus species. Two new combinations in the genus Panus are proposed here.

New and known species of the genus Pungentus Thorne & Swanger, 1936 (Dorylaimida, Nordiidae) from Iran

2019 ◽  
Vol 94 ◽  
Author(s):  
F. Heydari ◽  
F. Gharibzadeh ◽  
E. Pourjam ◽  
M. Pedram
Keyword(s):  
Molecular Data ◽  
The Body ◽  
Rhizospheric Soil ◽  
Female Reproductive System ◽  
Phylogenetic Relations ◽  
Morphological Studies ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Morphological And Molecular Data ◽  
System Body

Abstract This contribution provides morphological and molecular data for one new and one known species of the genus Pungentus. The first species, P. azarbaijanensis n. sp., was recovered from the rhizospheric soil of grasses, collected in West Azarbaijan province, Iran, and was characterized by 2082–2365 μm long females having an angular lip region separated from the rest of the body by a constriction, 33–35 μm long odontostyle, vulva at 43.5–51.0%, 27.0–29.5 μm long rounded-conoid tail, and males unknown. It was compared morphologically with five species: P. angulosus, P. crassus, P. marietani, P. parapungens and P. pungens, which have didelphic-amphidelphic female reproductive system, body longer than 1.5 mm, and odontostyle longer than 20 μm. The second species, P. engadinensis, was recovered in three different regions of Iran (Mazandaran, Semnan and East Azarbaijan provinces). It was compared morphologically with some other populations reported all over the world. Besides morphological studies, molecular phylogenetic studies using partial sequences of 28S rDNA D2-D3 fragments were performed, and the phylogenetic relations of the two Iranian populations with other species and genera were discussed.

scholarly journals The occurrence of three species of the genus Oscheius Andrássy, 1976 (Nematoda: Rhabditida) in Iran

2017 ◽  
Vol 57 (3) ◽  
pp. 248-255 ◽  
Author(s):  
Ahmad Valizadeh ◽  
Shila Goldasteh ◽  
Zahra Rafiei-Karahroodi ◽  
Majid Pedram
Keyword(s):  
Morphological Characters ◽  
Molecular Data ◽  
Parasitic Nematodes ◽  
Bayesian Posterior Probability ◽  
Agricultural Pests ◽  
Phylogenetic Studies ◽  
Dead Trees ◽  
Molecular Phylogenetic ◽  
Morphological And Molecular Data ◽  
First Time

AbstractDue to importance and effectiveness of some entomopathogenic or insect parasitic nematodes in controlling of agricultural pests, or pests of non-agricultural plants, a study was conducted in order to identify the species of this group of nematodes in city of Tehran. As the result, three species belonging to the genusOscheiuswere recovered in association with bark samples having the bark beetle galleries. Morphological and molecular data were provided for two recently recovered species of the genus, namelyO. necromenusandO. onirici. Molecular data were also provided for a recently recovered isolate ofO. tipulae. All three species were recovered in association with bark samples collected from dead trees in the city of Tehran. Morphological characters and morphometric data of the two aforementioned species are in accordance with the data given in their original descriptions. One recovered individual from a small bark sample characterized by its short body length was sequenced for its 28S and internal transcribed spacer (ITS) rDNA loci, and the results of BLAST search using the newly obtained partial sequences revealed that it belonged toO. tipulae. Molecular phylogenetic studies revealed recently sequenced Iranian populations ofO. oniriciandO. tipulaeforming a clade with other isolates/populations of these species in ITS tree with maximal Bayesian posterior probability (BPP), and presently sequenced isolates ofO. tipulaeandO. necromenusform a clade with other isolates of these species in 28S tree. The two speciesO. oniriciandO. necromenuswere reported in Iran for the first time.

scholarly journals A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota)

Phytotaxa ◽  
2013 ◽  
Vol 132 (1) ◽  
pp. 21 ◽  
Author(s):  
PRADEEP K. DIVAKAR ◽  
ANA CRESPO ◽  
JANO NÚÑEZ-ZAPATA ◽  
ADAM FLAKUS ◽  
HARRIE J.M. SIPMAN ◽  
...  
Keyword(s):  
Molecular Phylogeny ◽  
Phylogenetic Analyses ◽  
Ssu Rdna ◽  
New Combinations ◽  
Generic Delimitation ◽  
Rdna Sequences ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Alternative Hypotheses ◽  
Nuclear Its

Recently, molecular phylogenetic studies have revolutionized the generic concepts in Parmeliaceae and in lichen forming fungi in general. In the present study, the generic delimitation in the Hypotrachyna clade is revised using a molecular phylogeny of nuclear ITS, LSU and mitochondrial SSU rDNA sequences of 88 hypotrachynoid taxa. Morphological and chemical features are also revised in each group. 118 sequences are newly generated for this study. Our phylogenetic analyses show the polyphyly of Hypotrachyna as currently circumscribed which falls into four well-supported and one unsupported clade. Cetrariastrum, Everniastrum and Parmelinopsis are nested within Hypotrachyna s. lat., Parmelinopsis being also polyphyletic and nested in one of the Hypotrachyna clades. Cetrariastrum is monophyletic but clustered within Everniastrum. Two alternative hypotheses tests significantly rejected the monophyly of these three genera. As a consequence, the genera Cetrariastrum, Everniastrum, and Parmelinopsis are reduced to synonymy with Hypotrachyna. Furthermore, we here propose an alternative classification to recognize the well-supported clades at subgeneric level and leave the remaining species unclassified within the genus. Five new subgenera are proposed: Hypotrachyna subgen. Cetrariastrum, Hypotrachyna subgen. Everniastrum, Hypotrachyna subgen. Longilobae, Hypotrachyna subgen. Parmelinopsis, and Hypotrachyna subgen. Sinuosae. Forty-nine new combinations are proposed.

The systematics of Boulengerula fischeri (Amphibia: Gymnophiona: Caeciliidae) based on morphological and molecular data

Zootaxa ◽  
2011 ◽  
Vol 2767 (1) ◽  
pp. 14 ◽  
Author(s):  
DAVID J. GOWER ◽  
ANNA PAPADOPOULOU ◽  
THOMAS M. DOHERTY-BONE ◽  
FABIO PUPIN ◽  
DIEGO SAN MAURO ◽  
...  
Keyword(s):  
Nuclear Gene ◽  
Molecular Data ◽  
Morphological Characterization ◽  
Phylogenetic Position ◽  
Nominal Species ◽  
Phylogenetic Studies ◽  
The Status ◽  
Molecular Phylogenetic ◽  
New Material ◽  
Morphological And Molecular Data

Eight new specimens are reported for the caecilian amphibian Boulengerula fischeri, a species known in detail previously only from its holotype collected in 1987. The new material was collected at the type locality in Rwanda in 2009, and is used to expand and refine the morphological characterization of the species. Mitochondrial and nuclear gene sequences were used to assess the phylogenetic position of B. fischeri in the context of a recent molecular phylogeny of six of the seven other species of Boulengerula (from Kenya and Tanzania). Among nominal species, only B. denhardti remains to be included in molecular phylogenetic studies of Boulengerula. Boulengerula is recovered as monophyletic, with either B. fischeri or (more probably) B. boulengeri sister to all other sampled species. There are at least three deep lineages within Boulengerula: (1) B. boulengeri, (2) B. fischeri, and (3) all other Eastern Arc Mountain and Coastal Forest species from Kenya and Tanzania. The status of Afrocaecilia, a genus erected by Taylor in 1968 to contain all Boulengerula except B. boulengeri, is not yet resolved.

Morphological and molecular data of two species of the rare genera Thada Thorne, 1941 and Tenunemellus Siddiqi, 1986 (Nematoda: Tylenchidae) from Iran

2020 ◽  
Vol 94 ◽  
Author(s):  
M. Hosseinvand ◽  
A. Eskandari ◽  
R. Ghaderi ◽  
A. Karegar
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Large Subunit ◽  
Populus Euphratica ◽  
Molecular Data ◽  
Small Subunit ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Morphological Differences ◽  
Morphological And Molecular Data

Abstract Thada populus n. sp. was found in the rhizosphere of Populus euphratica in the city of Dezful, south-western Iran. The new species is characterized by its 365–453 μm body length, cuticle with transverse annuli 0.9–1.2 μm wide, lateral fields with four lines, lip region low with one or two annuli, 7.0–8.5 μm wide at base, longitudinal or slightly sigmoid amphidial slit, delicate stylet 8.4–9.8 μm long with posteriorly directed knobs, dorsal pharyngeal gland opening at 1.0–1.5 μm posterior to the stylet knobs, non-muscular and valve-less median bulb, pyriform and offset basal bulb, almost oval spermatheca, posterior position of vulva (V = 75–79%) without lateral membrane, short post-vulval uterine sac and conical tail with finely to broadly rounded terminus. Morphological differences of the new species with those of the type species, Thada striata, are discussed. Molecular phylogenetic studies of the new species using partial sequences of small subunit ribosomal DNA revealed that the new species formed a clade with Malenchus spp., Filenchus facultativus, F. fungivorus and Filenchus sp. in Bayesian inference. Morphological and molecular phylogenetic studies were also performed on Tenunemellus indicus, the second recovered species, the latter analysis using partial sequences of large subunit ribosomal DNA. In the inferred Bayesian tree, T. indicus formed a clade with Labrys fuzhouensis, Lelenchus leptosoma from the Netherlands, Malenchus spp. and Filenchus discrepans.

Systematics of disjunct northeastern Asian and northern North American Allium (Amaryllidaceae)

Botany ◽  
2012 ◽  
Vol 90 (6) ◽  
pp. 491-508 ◽  
Author(s):  
Hyeok Jae Choi ◽  
Liliana M. Giussani ◽  
Chang Gee Jang ◽  
Byoung Un Oh ◽  
J. Hugo Cota-Sánchez
Keyword(s):  
Molecular Phylogeny ◽  
North American ◽  
New World ◽  
Sequence Data ◽  
Molecular Data ◽  
Nrdna Its ◽  
Seed Shape ◽  
Phylogenetic Studies ◽  
Morphological And Molecular Data ◽  
Seed Testa

This study was undertaken to better understand Allium infrageneric taxonomy, character evolution, species diversification, and patterns of radiation in disjunct species between the New and Old World using morphological and molecular data. Taxonomic sampling focused on northeastern Asian (mainly Korean and northeastern Chinese) and representative disjunct northern North American (Canadian) species. Pistil and seed testa morphology was investigated using light and scanning electron microscopy, respectively. These characters were useful to assess degree of relationship at different taxonomic levels in Allium. Phylogenetic studies included nrDNA ITS and cpDNA trnL–trnF sequence data analyzed using maximum parsimony approaches. Our molecular phylogeny recovers a similar topology to that published in recent studies and confirms three major evolutionary lines and patterns of radiation regarding the ancestors of subgenera Amerallium and Anguinum in the genus. The northeastern Asian and northern North American disjunction in this genus is inferred to be the result of multiple intercontinental migrations. Seed testa sculpture attributes in combination with seed shape provide key characters to distinguish Allium’s major clades in the molecular phylogeny. The two types of ovarian processes, basal hood-like and apical crest-like in disjunct Old and New World species, respectively, are newly derived characters in each continent. Most infrageneric Allium groups are monophyletic, while subgenus Cepa is polyphyletic.

Sinalliaria, a new genus of Brassicaceae from eastern China, based on morphological and molecular data

Phytotaxa ◽  
2014 ◽  
Vol 186 (4) ◽  
pp. 188 ◽  
Author(s):  
Ying-Ying Zhou ◽  
HONG-WEI ZHANG ◽  
JIANG-QIN HU ◽  
Xiao-Feng Jin
Keyword(s):  
Dna Sequences ◽  
New Genus ◽  
Eastern China ◽  
Distinct Group ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Combinations ◽  
The Family ◽  
Morphological And Molecular Data ◽  
Seed Testa

Sinalliaria is described here as a new genus of the family Brassicaceae from eastern China, based on the morphological characters and molecular sequences. Sinalliaria differs from the related genus Orychophragmus in having basal leaves petiolate, simple or rarely with 1‒3 lateral lobes (not pinnatisect); cauline leaves petiolate, cordate at base (not sessile, auriculate or amplexicaul at base); petals obovate to narrowly obovate, claw inconspicuous (not broadly obovate, with a claw as along as sepal); siliques truncate (not long-beaked) at apex. The microscopic characters of seed testa also show significant differences between Sinalliaria and Orychophragmus. Phylogenetic evidence from DNA sequences of nuclear ribosomal ITS and plastid region trnL-trnF indicates that Sinalliaria is a distinct group related to Orychophragmus and Raphanus, but these three genera do not form a clade. The new genus Sinalliaria is endemic to eastern China and has only one species and one variety. The new combinations, S. limprichtiana (Pax) X. F. Jin, Y. Y. Zhou & H. W. Zhang and S. limprichtiana var. grandifolia (Z. X. An) X. F. Jin, Y. Y. Zhou & H. W. Zhang are proposed here.

Molecular phylogeny of Pemphiginae (Hemiptera: Aphididae) inferred from nuclear gene EF-1α sequences

2008 ◽  
Vol 98 (5) ◽  
pp. 499-507 ◽  
Author(s):  
H.C. Zhang ◽  
G.X. Qiao
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Phylogeny ◽  
Host Specificity ◽  
Nuclear Gene ◽  
Molecular Data ◽  
Molecular Phylogenetic Analysis ◽  
Phylogenetic Study ◽  
Primary Host ◽  
Molecular Phylogenetic Study ◽  
Molecular Phylogenetic

AbstractThree traditional tribes of Fordini, Pemphigini and Eriosomatini comprise Pemphiginae, and there are two subtribes in Fordini and Pemphigini, respectively. Most of the species in this subfamily live heteroecious holocyclic lives with distinct primary host specificity. The three tribes of Pemphigini (except Prociphilina), Eriosomatini and Fordini use three families of plants, Salicaceae (Populus), Ulmaceae (Ulums) and Anacardiaceae (Pistacia and Rhus), as primary hosts, respectively, and form galls on them. Therefore, the Pemphigids are well known as gall makers, and their galls can be divided into true galls and pseudo-galls in type. We performed the first molecular phylogenetic study of Pemphiginae based on molecular data (EF-1α sequences). Results show that Pemphiginae is probably not a monophylum, but the monophyly of Fordini is supported robustly. The monophyly of Pemphigini is not supported, and two subtribes in it, Pemphigina and Prociphilina, are suggested to be raised to tribal level, equal with Fordini and Eriosomatini. The molecular phylogenetic analysis does not show definite relationships among the four tribes of Pemphiginae, as in the previous phylogenetic study based on morphology. It seems that the four tribes radiated at nearly the same time and then evolved independently. Based on this, we can speculate that galls originated independently four times in the four tribes, and there is no evidence to support that true galls are preceded by pseudo-galls, as in the case of thrips and willow sawflies.

scholarly journals Insights on The Morphological and Phylogenetic Delimitation of Dacrymyces Nees

2021 ◽  
Author(s):  
Renato Lúcio Mendes Alvarenga ◽  
Tatiana Baptista Gibertoni
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Morphological Features ◽  
New Combinations ◽  
Dna Analyses ◽  
Homogeneous Composition ◽  
Morphological And Molecular Data

Abstract Dacrymycetes has four families and 13 genera, few of them with molecular data available and then usually polyphyletic in phylogenetic analyses. Dacrymyces Nees is one of the polyphyletic genera in Dacrymycetes and it was introduced to accommodate one species, D. stillatus Nees. The morphological features of the genus are a homogeneous composition of the intra-structure and an amphigenous or superior hymenium. In this study, we included Neotropical specimens in the phylogeny of the Dacrymycetes and Dacrymyces s.s. is emended to include species with resupinate basidiomata, unilateral hymenium and heterogeneous context. In this new delimitation, the new species Dacrymyces flavobrunneus is described using morphological and molecular data and three new combinations (D. ceraceus comb. nov., D. maxidorii comb. nov. and D. spathularia comb. nov.) are proposed based on DNA analyses.

New species of Crella (Pytheas) Topsent, 1890 and Crellomima Rezvoi, 1925 (Crellidae, Poecilosclerida, Demospongiae) from Chilean shallow and Argentinean deep waters, with a synthesis on the known phylogenetic relationships of crellid sponges

Zootaxa ◽  
2021 ◽  
Vol 5052 (3) ◽  
pp. 353-379
Author(s):  
JULIO C.C. FERNANDEZ ◽  
MARIANELA GASTALDI ◽  
GERMÁN ZAPATA-HERNÁNDEZ ◽  
LUIS M. PARDO ◽  
FABIANO L. THOMPSON ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Morphological Characters ◽  
Molecular Data ◽  
Southern Chile ◽  
Deep Waters ◽  
Molecular Phylogenetic ◽  
Molecular Phylogenies ◽  
Taxonomic Studies ◽  
Phylogenetic Affinities

Here, we describe four new species of Crellidae Dendy, 1922 and discuss characters and relationships from published molecular phylogenies including crellid sponges. New species proposed are Crella (Pytheas) chiloensis Fernandez, Gastaldi, Pardo & Hajdu, sp. nov., from southern Chile (15 m depth), C. (P.) desventuradae Fernandez, Gastaldi, Zapata-Hernández & Hajdu, sp. nov., from Desventuradas Archipelago (10–20 m depth), Crella (P.) santacruzae Fernandez, Gastaldi, Thompson & Hajdu, sp. nov., from deep waters off Argentina (750 m depth) and Crellomima sigmatifera Fernandez, Gastaldi & Hajdu, sp. nov., from the Chilean fjords region (ca. 20 m depth). These new species are set apart from each other and from known species mainly due to aspects of their spiculation. Chelae microscleres and acanthostyles supply characters that might be used to infer phylogenetic relationships and to verify the monophyly of Crella Gray, 1867 and Crellidae, which has seemingly been contradicted by preliminary molecular data available in the systematics’ literature. Our own interpretation of phylogenetic affinities, in the light of morphological characters from previous taxonomic studies, argues for a classification reassessment of materials (vouchers) included in these molecular phylogenies, especially in the case of Crella incrustans (Carter, 1885). We argue that currently available molecular phylogenetic outcomes for crellid sponges are not supportive of the polyphyly of Crella and Crellidae.  

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