A phylogenetic analysis of Stenostomum and its neotropical congeners, with a description of a new species from the Peruvian Amazon Basin

2011 ◽  
Vol 25 (2) ◽  
pp. 155 ◽  
Author(s):  
Cristina Damborenea ◽  
Francisco Brusa ◽  
Io Almagro ◽  
Carolina Noreña
Keyword(s):  
Phylogenetic Analysis ◽  
Morphological Study ◽  
Amazon Basin ◽  
Morphological Characteristics ◽  
Morphological Data ◽  
Freshwater Species ◽  
Peruvian Amazon ◽  
Pharyngeal Constriction ◽  
A New Species ◽  
Preliminary Phylogenetic Analysis

This study reports Peruvian freshwater species of Stenostomum (Catenulida) from the upper Yurúa River of the Amazon Basin. A total of 11 species were found. One of them, Stenostomum ashanika, sp. nov., is described. It can be distinguished by: a pre-pharyngeal constriction; a small cauda; a small, rounded, mobile and ventrally directed pharynx; and a tri-radiate mouth. The remaining 10 species are reviewed and illustrated; eight are first records for Peru. A preliminary phylogenetic analysis of neotropical stenostomid species based on morphological data is undertaken, including all Rhynchoscolex, Stenostomum and Myostenostomum species described for the area. The Rhynchoscolex species are basal and paraphyletic; the species of Myostenostomum are monophyletic, within the Stenostomum clade, supported by the presence of a muscular gizzard in the anterior region of the intestine. Ciliated pits and rhabdoids are synapomorphies of the Stenostomum + Myostenostomum clade. This is the first morphological study of the relationships between stenostomid species. The most relevant characters in the phylogenetic analysis are those related to cerebral brain lobes. The results also show that many of the morphological characteristics of the species under study are poorly known and should be studied in more depth.

Euphorbia mongoliensis (Euphorbiaceae), a new species from Inner Mongolia, China

Phytotaxa ◽  
2021 ◽  
Vol 501 (1) ◽  
pp. 151-161
Author(s):  
ER-HUAN ZANG ◽  
MING-XU ZHANG ◽  
WEN-LE WANG ◽  
CHUN-HONG ZHANG ◽  
MIN-HUI LI
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Inner Mongolia ◽  
Pollen Morphology ◽  
Morphological Characteristics ◽  
Euphorbia Esula ◽  
Morphological Data ◽  
New Taxon ◽  
Flora Of China ◽  
A New Species

In May 2020, a new taxon of Euphorbia, Euphorbiaceae was collected from a dry hillside of Dongsheng District, Ordos City, Inner Mongolia. The morphological characteristics of the specimens analyzed differ from those of the known Euphorbia species from this region; therefore, we suspected this may be a new species, and we set to analyze the ITS2 sequences of some Euphorbia species. The results show that the new taxon belongs to the sect. Esula of Euphorbia subg. Esula. It is similar to Euphorbia esula (description from Flora of China) but does not belong to the same species. Concomitantly, plant morphological data and pollen morphology results show significant differences between the new taxon, E. esula and E. caesia, a finding that supports the delimitation of this new taxon, which is named Euphorbia mongoliensis in accordance with its geographical distribution.

scholarly journals Primula sunhangii (Primulaceae): a new species from Hubei, Central China

PhytoKeys ◽  
2020 ◽  
Vol 156 ◽  
pp. 103-112
Author(s):  
Jiao Sun ◽  
Dai-Gui Zhang ◽  
Xian-Han Huang ◽  
Komiljon Tojibaev ◽  
Jing-Yuan Yang ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Hubei Province ◽  
Central China ◽  
Morphological Data ◽  
Molecular Phylogenetic Analysis ◽  
Molecular Phylogenetic ◽  
A New Species

This report provides a description of Primula sunhangii from the Shennongjia Forestry District, Hubei Province in Central China, which is categorized as a new species of the primrose family. Primula sunhangii is morphologically similar to P. involucrata Wall. ex Duby in terms of its simple umbel, efarinose, and prolonged bracts. However, P. sunhangii is distinguished by its glabrous sepal, short petiole (compare with blade) and cylindrical calyx and capsule. Molecular phylogenetic analysis based on nuclear and cpDNA genes demonstrates that P. sunhangii and P. involucrata are closely related. Combining genetic and morphological data, the recognition of P. sunhangii as a unique new species is supported.

Ceriporia albomellea (Phanerochaetaceae, Basidiomycota), a new species from tropical China based on morphological and molecular evidences

Phytotaxa ◽  
2017 ◽  
Vol 298 (1) ◽  
pp. 20 ◽  
Author(s):  
YUAN YUAN ◽  
XIAO-HONG JI ◽  
FANG WU ◽  
JIA-JIA CHEN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Evidence ◽  
Its Regions ◽  
Tropical China ◽  
A New Species

A new polypore, Ceriporia albomellea, collected from tropical China, is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by thin, resupinate basidiome with a white subiculum, cottony margin, white to cinnamon-buff pores, clavate cystidia and oblong-ellipsoid basidiospores measured as 3.1–3.8 × 1.7–2 µm. Phylogenetic analysis based on the internal transcribed spacer (ITS) regions and nuclear large subunit (nLSU) ribosomal RNA gene regions supported C. albomellea as a distinctive species belonging to Ceriporia.

Integrative Taxonomy of Australian Metopia (Sarcophagidae: Miltogramminae) Reveals a New Species and Challenges Traditional Phylogeny

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Nikolas P Johnston ◽  
James F Wallman ◽  
Thomas Pape
Keyword(s):  
Phylogenetic Analysis ◽  
Species Complex ◽  
Molecular Phylogenetics ◽  
Taxonomic Revision ◽  
Integrated Approach ◽  
Integrative Taxonomy ◽  
Morphological Data ◽  
Australian Species ◽  
A New Species ◽  
Generic Relationships

Abstract A taxonomic revision of all Australian species of Metopia Meigen (Sarcophagidae: Miltogramminae) is completed using an integrated approach combining molecular and morphological data. Metopia nudibasis (Malloch) is redescribed as a species complex and a new endemic Australian species, Metopia sputnik sp. n., is described. Evidence is presented that Metopia sauteri (Townsend) is absent from Australia and this species is therefore removed from the known Australian fauna. Molecular phylogenetics is used to reconstruct interspecific and generic relationships and support morphology-based species hypotheses. Phylogenetic analysis splits Metopia Meigen into two clades, separated by Aenigmetopia Malloch, rendering the former genus nonmonophyletic. The implications of this are discussed.

A new species of the genus Lucasioides Kwon, 1993 (Isopoda, Oniscidea, Agnaridae) from Siberia, Russia

Zootaxa ◽  
2021 ◽  
Vol 4903 (1) ◽  
pp. 140-150
Author(s):  
KONSTANTIN B. GONGALSKY ◽  
PAVEL S. NEFEDIEV ◽  
ILYA S. TURBANOV
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
First Record ◽  
Morphological Characters ◽  
Molecular Data ◽  
Altai Mountains ◽  
The Family ◽  
Southwestern Siberia ◽  
A New Species ◽  
Preliminary Phylogenetic Analysis

A new species of the family Agnaridae, Lucasioides altaicus sp. nov., is described from the Altai Mountains, southwestern Siberia, based both on morphological characters and molecular data. This species is the first record of Lucasioides from Russia, whose location is the northernmost habitat of terrestrial isopods in indigenous habitats presently known to Eurasia. The diagnostic characters of the new species and a preliminary phylogenetic analysis within Agnaridae are provided. 

scholarly journals Oxytropis shennongjiaensis (Fabaceae), a new species from Hubei, Central China

PhytoKeys ◽  
2020 ◽  
Vol 149 ◽  
pp. 117-128 ◽  
Author(s):  
Jun-Tong Chen ◽  
Dai-Gui Zhang ◽  
Zhen-Yu Lv ◽  
Xianhan Huang ◽  
Peng-Ju Liu ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Diagnostic Criteria ◽  
Hubei Province ◽  
Internal Transcribed Spacers ◽  
Central China ◽  
Morphological Data ◽  
Pale Yellow ◽  
Chloroplast Markers ◽  
A New Species

Here we describe Oxytropis shennongjiaensis, a new species of Fabaceae from Central China (Hubei Province). Morphologically, O. shennongjiaensis is closely similar to O. sitaipaiensis, O. melanocalyx and O. kansuensis, but differs in stem characters, with less conspicuous internodes; persistent herbaceous stipules; pale yellow to white corolla; and stipitate legumes, 3–5 mm with a long beak. Phylogenetic analysis, based on the internal transcribed spacers (ITS) and two chloroplast markers (trnL–F and psbA–trnH), also identified O. shennongjiaensis as a new species, which is consistent with our morphological analyses. Considering the morphological data and phylogenetic data presented here, we believe that this evidence satisfies the required diagnostic criteria to identify O. shennongjiaensis as a new species.

Lecanicillium coprophilum (Cordycipitaceae, Hypocreales), a new species of fungus from the feces of Marmota monax in China

Phytotaxa ◽  
2019 ◽  
Vol 387 (1) ◽  
pp. 55 ◽  
Author(s):  
LEI SU ◽  
HUA ZHU ◽  
YAXI GUO ◽  
XIAOPENG DU ◽  
JIANGUO GUO ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Characteristics ◽  
Fecal Samples ◽  
Marmota Monax ◽  
A New Species

Species in Lecanicillium are pathogens that parasitize various arthropods, nematodes, and other fungi. In an investigation of intestinal fungi associated with Marmota monax in China, three strains belonging to the genus Lecanicillium were isolated from the fresh fecal samples. Based on multi-locus phylogenetic analysis of the combined sequences (ITS, LSU, SSU, TEF, RPB1 and RPB2) and morphological characteristics, all species in Lecanicillium were well-separated. The three intestinal strains were assigned to a new species described as L. coprophilum in this paper. The new species differs morphologically from other Lecanicillium species by its dimensions of conidiogenous cells and conidia, the shape of conidia, dictyochlamydospores and swollen hyphae. The differences of L. coprophilum from other Lecanicillium species and closely related taxa are briefly discussed.

scholarly journals A new short-necked chelid turtle from the Loncoche Formation (Late Campanian- Early Maastrichtian) Mendoza province, Argentina: Macro, microanatomy, and preliminary phylogenetic relationships

2015 ◽  
Author(s):  
Marcelo de la Fuente ◽  
Ignacio Maniel ◽  
Juan Marcos Jannello ◽  
Juliana Sterli ◽  
Bernardo González Riga ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Cancellous Bone ◽  
Phylogenetic Relationships ◽  
Cervical Vertebrae ◽  
Data Matrix ◽  
Appendicular Skeleton ◽  
Thin Sections ◽  
Lower Jaw ◽  
A New Species ◽  
Preliminary Phylogenetic Analysis

Background. The lower section of the Loncoche Formation (Late Campanian-Early Maastrichtian) outcropping at Ranquil-Có locality (Mendoza province, Argentina) has yielded a rich assemblage of vertebrates that was studied in 1995 by Gonzalez Riga. According to this author these vertebrate remains were found in a tidal paleoenvironment, resulting from transportation, mixing and deposition of continental remains mixed with those from near costal environments. Previously to these findings Jose F. Bonaparte recovered in 1990 a large turtle from the same locality and horizon. Methods. Remains of basicranium (basioccipital and basisphenoid), fragments of both quadrates, left opisthotic, a lower jaw, cervical vertebrae, one caudal vertebra, appendicular skeleton, a partial carapace and one almost complete plastron are preserved in MACN Pv M2. In order to explore the phylogenetic relationships of MACN Pv M2, this specimen was included in a data matrix built up by 48 characters and 17 taxa. One fragmentary costal plate was sampled for histological analysis. The bone microstructure of the thin sections was studied under light microscopy using normal and polarized lights. Results. The preliminary phylogenetic analysis suggests that MACN Pv M2 is nested in a clade also including Phrynops hilarii + Mesoclemmys nasuta + long-necked chelids. The pelvic girdle attached by suture to the shell in MACN Pv M2 and the synapomorphic characters such as splenial bone in the lower jaw, ilium extending over the eight costal and anterior margin of the suprapygal bones allow us to assign this specimen to Pleurodira Chelidae. The microanatomy of MACN Pv M2 shows a diploe structure as in other turtles. The internal cortex is equal or slowly thinner than the external one, and the cancellous bone occupy the main proportion (50-60%). The external cortex is composed of structural fibre bundles that extend parallel to the external surface and orient longitudinally and transversally to the progression of the elements. The cancellous bone is mostly well developed. The internal cortex consists of parallel-fibred bone that locally can grade into lamellar bone. Discussion. The unique combination of plesiomorphies (such as lateral mesoplastra, area articularis mandibularis concave, a short midline epiplastral suture, an anterior peripherals bones shorter than posterior ones) and autapomorphies (such as both rami of the lower jaw fused, extremely wide anterior plastral lobe, and a slightly epiplastral notch) recovered in this phylogenetic analysis allow to assigned MACN Pv M2 as a new species of short-necked chelid taxa. The histology of MACN Pv M2 shows features that suggest adaptation to the aquatic lifestyle (i.e., well vascularized external cortex, the vascularization of the internal cortex composed of scattered vascular canals and primary osteons of longitudinally orientation).

Gongronella zunyiensis sp. nov. (Cunninghamellaceae, Mucorales) isolated from rhizosphere soil in China

Phytotaxa ◽  
2019 ◽  
Vol 425 (5) ◽  
pp. 290-296 ◽  
Author(s):  
CHUN-BO DONG ◽  
ZHI-YUAN ZHANG ◽  
WAN-HAO CHEN ◽  
YAN-FENG HAN ◽  
JIAN-ZHONG HUANG ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Soil Fungi ◽  
Rhizosphere Soil ◽  
Morphological Characteristics ◽  
Eucommia Ulmoides ◽  
A New Species

During a survey of rhizosphere soil fungi of Eucommia ulmoides in China, three Gongronella strains were isolated. Phylogenetic analysis showed that these strains grouped into a separate subclade, closely related to Gongronella sichuanensis. The new strains could be distinguished from G. sichuanensis by the smooth-walled, subglobose, or conical-cylindrical apophyses. Both phylogenetic analysis and morphological characteristics supported the three strains being a new species, named as Gongronella zunyiensis.

Aster brevicaulis (Asteraceae, Astereae), a new species from western Sichuan, China

Phytotaxa ◽  
2019 ◽  
Vol 399 (1) ◽  
pp. 1 ◽  
Author(s):  
JIA-WEI XIAO ◽  
JUN-JIE LIAO ◽  
WEI-PING LI
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Nuclear Dna ◽  
Morphological Data ◽  
Cytological Observation ◽  
Separate Species ◽  
Western Sichuan ◽  
A New Species

Aster brevicaulis W. P. Li (Asteraceae, Astereae), a new species from Sichuan, China, is illustrated and described. Morphological data and a phylogenetic analysis based on a combined nuclear DNA ITS and ETS dataset suggest that A. brevicaulis is a separate species closely related to A. tongolensis. The new species differs from the latter by having stems only 2–15 (22) cm long, without stolons, phyllaries 5-seriate, and pappus 4–5 mm long. Cytological observation shows that the new species is diploid with 2n = 2x = 18 =16m + 2sm.

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