Rhytidhysteron mangrovei (Hysteriaceae), a new species from mangroves in Phetchaburi Province, Thailand

Phytotaxa ◽  
2019 ◽  
Vol 401 (3) ◽  
pp. 166 ◽  
Author(s):  
VINIT KUMAR ◽  
RATCHADAWAN CHEEWANGKOON ◽  
KASUN M. THAMBUGALA ◽  
GARETH E.B. JONES ◽  
RASHIKA S. BRAHMANAGE ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Sequences ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Mangrove Forests ◽  
Morphological Comparison ◽  
Dna Sequence Data ◽  
Mangrove Tree ◽  
A New Species

During an investigation of micro-fungi inhabiting mangrove forests, a new species of Rhytidhysteron was collected and isolated from dead twigs of a mangrove tree. Rhytidhysteron mangrovei sp. nov. is introduced, described, illustrated and compared with accepted species in the genus. Morphological comparison based on the size of exciple, the appearance of ascomata and ascospore septations and size as well as the multi-gene phylogenetic analyses based on LSU, ITS and TEF DNA sequences support its establishment in Rhytidhysteron. Placement of the genus in Hysteriaceae is also well-supported. In addition, phylogenetic analysis and DNA sequence data indicate that Rhytidhysteron mangrovei is closely related to Rhytidhysteron thailandicum. However, R. mangrovei is morphologically distinct from R. thailandicum, by having a relatively smaller size of exciple and perpendicularly rough-striate ascomata.

Pseudodactylaria brevis sp. nov. from Thailand confirms the status of Pseudodactylariaceae

Phytotaxa ◽  
2018 ◽  
Vol 369 (4) ◽  
pp. 241 ◽  
Author(s):  
CHUAN-GEN LIN ◽  
ERIC H. C. MCKENZIE ◽  
DARBHE J. BHAT ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Sequence Data ◽  
Taxonomic Status ◽  
Its Sequence ◽  
Morphological Comparison ◽  
Phylogenetic Placement ◽  
Data Analyses ◽  
The Status ◽  
A New Species

A new species, Pseudodactylaria brevis, is described, illustrated and compared with other Pseudodactylaria and Dactylaria-like taxa. Evidence for the new species is provided by morphological comparison and sequence data analyses. Pseudodactylaria brevis can be distinguished from other Pseudodactylaria and Dactylaria-like species by its short hyaline conidiophores and fusiform, 1-septate hyaline conidia. Phylogenetic analysis of LSU and ITS sequence data was carried out to determine the phylogenetic placement of the species and confirm the taxonomic status of Pseudodactylariaceae.

scholarly journals Morphology, genetic characterization and molecular phylogeny of pinworm Skrjabinema longicaudatum n. sp. (Oxyurida: Oxyuridae) from the endangered Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae)

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Yi-Fan Cao ◽  
Hui-Xia Chen ◽  
Yang Li ◽  
Dang-Wei Zhou ◽  
Shi-Long Chen ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Dna Sequences ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Small Subunit ◽  
Sister Relationship ◽  
Tibetan Antelope ◽  
A New Species

Abstract Background The Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae) is an endangered species of mammal endemic to the Qinghai-Tibetan Plateau. Parasites and parasitic diseases are considered to be important threats in the conservation of the Tibetan antelope. However, our present knowledge of the composition of the parasites of the Tibetan antelope remains limited. Methods Large numbers of nematode parasites were collected from a dead Tibetan antelope. The morphology of these nematode specimens was observed using light and scanning electron microscopy. The nuclear and mitochondrial DNA sequences, i.e. small subunit ribosomal DNA (18S), large subunit ribosomal DNA (28S), internal transcribed spacer (ITS) and cytochrome c oxidase subunit 1 (cox1), were amplified and sequenced for molecular identification. Moreover, phylogenetic analyses were performed using maximum likelihood (ML) inference based on 28S and 18S + 28S + cox1 sequence data, respectively, in order to clarify the systematic status of these nematodes. Results Integrated morphological and genetic evidence reveals these nematode specimens to be a new species of pinworm Skrjabinema longicaudatum (Oxyurida: Oxyuridae). There was no intraspecific nucleotide variation between different individuals of S. longicaudatum n. sp. in the partial 18S, 28S, ITS and cox1 sequences. However, a high level of nucleotide divergence was revealed between the new species and its congeners in 28S (8.36%) and ITS (20.3–23.7%) regions, respectively. Molecular phylogenetic results suggest that the genus Skrjabinema should belong to the subfamily Oxyurinae (Oxyuroidea: Oxyuridae), instead of the subfamily Syphaciidae or Skrjabinemiinae in the traditional classification, as it formed a sister relationship to the genus Oxyuris. Conclusions A new species of pinworm Skrjabinema longicaudatum n. sp. (Oxyurida: Oxyuridae) is described. Skrjabinema longicaudatum n. sp. represents the first species of Oxyurida (pinworm) and the fourth nematode species reported from the Tibetan antelope. Our results contribute to the knowledge of the species diversity of parasites from the Tibetan antelope, and clarify the systematic position of the genus Skrjabinema.

A new and endangered species of Iochroma (Solanaceae) from the cloud forests of central Peru and its phylogenetic position in Iochrominae

Phytotaxa ◽  
2015 ◽  
Vol 227 (2) ◽  
pp. 147 ◽  
Author(s):  
Marco Antonio Cueva Manchego ◽  
STACEY DEWITT SMITH ◽  
SEGUNDO LEIVA GONZÁLES
Keyword(s):  
New Species ◽  
Endangered Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Phylogenetic Position ◽  
Cloud Forests ◽  
Dna Sequence Data ◽  
A New Species ◽  
Iucn Criteria

Iochroma amicorum M. Cueva, S. D. Sm. & S. Leiva (Solanaceae), a new species from cloud forests of Central Peru, is described and illustrated. Phylogenetic analyses of DNA sequence data suggest that Iochroma amicorum is closely related to I. nitidum, I. umbellatum, I. grandiflorum and I. tingoanum, which collectively form the “U” clade of Iochrominae. Certain morphological characteristics of calyx and corolla as well as the type of habitat appear to be common in species of this clade. Iochroma amicorum is easily distinguished from other members of the “U” clade by its campanulate or funnel-shaped corolla with short and slightly reflexed lobes, the presence of an expanded stapet at the point of filament insertion with short lateral extensions united to the corolla, and its globose usually white fruits with tinges of purple at the base. Distribution, phenology and are discussed together with the position of the new species in Iochrominae. Iochroma amicorum is assessed as Endangered according to IUCN criteria B1ab (i, iii)

scholarly journals Morphology, genetic characterization and molecular phylogeny of pinworm Skrjabinema longicaudatum sp. n. (Oxyurida: Oxyuridae) from the endangered Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae)

2020 ◽  
Author(s):  
Yi-Fan Cao ◽  
Hui-Xia Chen ◽  
Yang Li ◽  
Dang-Wei Zhou ◽  
Shi-Long Chen ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Dna Sequences ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Nematode Species ◽  
Sister Relationship ◽  
Tibetan Antelope ◽  
A New Species ◽  
Cox 1

Abstract Background The Tibetan antelope Pantholops hodgsonii (Abel) (Artiodactyla: Bovidae) is an endangered and endemic species of mammal to the Qinghai-Tibetan Plateau. Parasites and their caused parasitic diseases are considered to be important threats in the conservation of the Tibetan antelope. However, our present knowledge of the composition of the parasites from the Tibetan antelope remains limited. Methods Large numbers of nematode parasites were collected from a dead Tibetan antelope. The morphology of these nematode specimens were observed using light and scanning electron microscopy. The nuclear and mitochondrial DNA sequences [i.e. small ribosomal DNA (18S), large ribosomal DNA (28S), internal transcribed spacer (ITS) and cytochrome c oxidase subunit 1 ( cox 1)] were amplified and sequenced for molecular identification. Moreover, phylogenetic analyses were performed using maximum likelihood (ML) inference based on 28S and 18S + 28S + cox 1 sequence data, respectively, in order to clarify the systematic status of these nematodes. Results Integrated morphological and genetic evidence reveals these nematode specimens to be a new species of pinworm Skrjabinema longicaudatum sp. n. (Oxyurida: Oxyuridae). There is no intraspecific nucleotide variation found between different individuals of S. longicaudatum sp. n. in the partial 18S, 28S, ITS and cox 1 sequences. However, the high level of nucleotide divergence was revealed between the new species and its congeners in 28S (8.36%) and ITS (20.3–23.7%) regions, respectively. Molecular phylogenetic results supported that the genus Skrjabinema should belong to the subfamily Oxyurinae (Oxyuroidea: Oxyuridae), instead of the subfamily Syphaciidae or Skrjabinemiinae in the traditional classification, which formed a sister relationship to the genus Oxyuris . Conclusions A new species of pinworm Skrjabinema longicaudatum sp. n. (Oxyurida: Oxyuridae) was described. Skrjabinema longicaudatum sp. n. represents the first species of Oxyurida (pinworm) and the fourth nematode species reported from the Tibetan antelope. Our results contribute to our knowledge on the species diversity of parasites from the Tibetan antelope, and also clarified the systematic position of the genus Skrjabinema .

scholarly journals Morphological and molecular phylogenetic analyses reveal three species of Colletotrichum in Shandong province, China

MycoKeys ◽  
2021 ◽  
Vol 85 ◽  
pp. 57-71
Author(s):  
Taichang Mu ◽  
Zhaoxue Zhang ◽  
Rongyu Liu ◽  
Shubin Liu ◽  
Zhuang Li ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Host Range ◽  
Species Complex ◽  
Plant Pathogens ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Shandong Province ◽  
Molecular Phylogenetic ◽  
A New Species

Colletotrichum has numerous host range and distribution. Its species are important plant pathogens, endophytes and saprobes. Colletotrichum can cause regular or irregular depressions and necrotic lesions in the epidermal tissues of plants. During this research Colletotrichum specimens were collected from Mengyin County, Shandong Province, China. A multi-locus phylogenetic analysis of ITS, GAPDH, CHS-1, ACT, TUB2, CAL and GS sequence data combined with morphology, revealed a new species and two known species, viz. C. mengyinense sp. nov., C. gloeosporioides and C. pandanicola, belonging to the C. gloeosporioides species complex. The new species is described and illustrated in this paper and compared with taxa in the C. gloeosporioides species complex.

Cymbidium yunnanensis: a new orchid species (Orchidaceae; Epidendroideae) from China based on morphological and molecular evidence

Phytotaxa ◽  
2019 ◽  
Vol 387 (2) ◽  
pp. 149-157 ◽  
Author(s):  
GUO-QIANG ZHANG ◽  
GUI-ZHEN CHEN ◽  
LI-JUN CHEN ◽  
SI-REN LAN
Keyword(s):  
New Species ◽  
Dna Sequence ◽  
Yunnan Province ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Molecular Evidence ◽  
Orchid Species ◽  
Molecular Analyses ◽  
Dna Sequence Data ◽  
A New Species

A new orchid species, Cymbidium yunnanensis (Orchidaceae; Epidendroideae; Cymbidieae), from Yunnan Province, China, is described and illustrated. Based on morphological and molecular analyses, we demonstrate that this new species is similar to C. floribundum, but it differs in its smaller size, leaves 5–15 cm, shorter scape, white flowers with pale purplish markings on its sepals and petals, lip with purplish red blotch, petals narrowly falcate oblong and lip midlobe nearly round with column foot 1.5–2.0 mm long. Phylogenetic analyses based on nuclear ribosomal ITS and plastid (matK, rbcL) DNA sequence data support C. yunnanensis as a new species.

Liparis funingensis (Orchidaceae; Epidendroideae; Malaxidae), a new species from Yunnan, China: evidence from morphology and DNA 

Phytotaxa ◽  
2014 ◽  
Vol 166 (1) ◽  
pp. 85 ◽  
Author(s):  
YONG-YU SU ◽  
YUAN MENG ◽  
YU SHI ◽  
GUANG-DA TANG ◽  
Zhong-Jian Liu
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Sequence Data ◽  
Detailed Comparison ◽  
Molecular Study ◽  
Systematic Position ◽  
Orchid Species ◽  
Molecular Analyses ◽  
Dna Sequence Data ◽  
A New Species

A new orchid species, Liparis funingensis, from Yunnan, China, is described and illustrated in this study based on morphological and molecular analyses. A detailed comparison between the newly discovered orchid and other members of Liparis was performed. This new plant is characterized by an obovate lip and is trilobed. The sidelobes are semiorbicular and fleshy, and the midlobe is short and bilobed with triangular lobes. The disc has a deeply bilobed basal callus and two longitudinal lamellae from the base extending to above the middle. There are four pollinia in two pairs, with each pair exhibiting long caudicles without a viscidium. The rostellum also has a bursa synovialis. These features distinguish this new orchid from all other known species of Liparis. A phylogenetic analysis was subsequently performed to determine the systematic position of this enigmatic species. A molecular study based on nuclear ribosomal ITS and plastid matK DNA sequence data indicates that L. funingensis is a member of L. layardii subclade. 

Phylogeny-based species delimitation of southern Philippines bent-toed geckos and a new species of Cyrtodactylus (Squamata: Gekkonidae) from western Mindanao and the Sulu Archipelago

Zootaxa ◽  
2010 ◽  
Vol 2390 (1) ◽  
pp. 49 ◽  
Author(s):  
LUKE J. WELTON ◽  
CAMERON D. SILER ◽  
ARVIN C. DIESMOS ◽  
RAFE M. BROWN
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Dna Sequences ◽  
Sequence Data ◽  
Color Pattern ◽  
Reciprocal Monophyly ◽  
Dna Sequence Data ◽  
Natural Park ◽  
Gallery Forests ◽  
A New Species

Using a combination of fixed morphological character differences, mitochondrial DNA sequence data, and an estimate of phylogeny as our guide, we describe a new species of bent-toed gekkonid lizard (Genus: Cyrtodactylus) from southwestern Mindanao Island, and northeastern portions of the Sulu Archipelago, southern Philippines. The new species resembles C. annulatus, but differs from this and all other congeners by characteristics of external morphology, color pattern, and body size. In addition, the new species is distinguished from congeners by marked genetic divergence and reciprocal monophyly of mitochondrial DNA sequences. The new species is common in pristine, low elevation gallery forests throughout Pasonanca Natural Park, Zamboanga Peninsula, southwestern Mindanao Island, and the northeastern portions of the Sulu Archipelago.

scholarly journals Hymenochaetaceae (Basidiomycota, Hymenochaetales) from the Guineo-Congolian phytochorion: Phylloporia rinoreae sp. nov., an additional undescribed species from the Forest Global Earth Observatory Plot in Gabon

2019 ◽  
Vol 152 (3) ◽  
pp. 531-538
Author(s):  
Matthieu Jerusalem ◽  
Prudence Yombiyeni ◽  
Gabriel Castillo ◽  
Cony Decock
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Sequence ◽  
Rain Forest ◽  
Sequence Data ◽  
Central Africa ◽  
Undescribed Species ◽  
Ecological Data ◽  
Dna Sequence Data ◽  
A New Species

Background and aims – The aim of this study is the continuation of an ongoing survey of Hymenochaetaceae (Basidiomycota, Hymenochaetales) from the lower Guinean sub-region in Central Africa. In this frame, a new species of Phylloporia is described from Gabon, based on morphological, ecological and phylogenetic data. Methods – The species is described using morphological methods, and ecological data. DNA-based phylogenetic analysis are also used to search for affinities.Key results – A new species of Phylloporia, P. rinoreae, is described based on specimens collected on living twigs of a shrubby Rinorea species (Violaceae), occurring in the Guineo-Congolian rain forest. Phylogenetic inferences using DNA sequence data from partial nuc 28S (region including the D1/D2/D3 domains) resolved this species as a distinct clade within the Phylloporia lineage. An identification key to the species reported from the Guineo-Congolian phytochorion is provided.Conclusion – Phylloporia rinoreae is the seventh species of the genus described from and so far only known from Gabon in the Lower Guinean phytogeographical sub-region.

scholarly journals Seifertia shangrilaensis sp. nov. (Melanommataceae), a new species from Southwest China

Phytotaxa ◽  
2016 ◽  
Vol 273 (1) ◽  
pp. 34 ◽  
Author(s):  
JUNFU LI ◽  
RUNGTIWA PHOOKAMSAK ◽  
AUSANA MAPOOK ◽  
SARANYAPHAT BOONMEE ◽  
JARAYAMA D. BHAT ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Type Species ◽  
Yunnan Province ◽  
Southwest China ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
New Taxon ◽  
A New Species

A new Seifertia species was isolated from hanging rachides of Rhododendron decorum in Yunnan Province, Southwest China. The new taxon was compared with the type species, S. azalea and differs in having wider conidiophores, with hyaline to subhyaline and smaller conidia, while S. azalea has olive-brown to brown, rarely branched conidiophores, and pale brown or olive-brown, very rarely septate conidia. Phylogenetic analyses of combined LSU, SSU and TEF1-α sequence data show that S. shangrilaensis forms a robust clade with S. azalea nested among the species of Melanommataceae in the order Pleosporales. A new species, S. shangrilaensis is introduced in this study, and Seifertia should be placed in Melanommataceae (Pleosporales, Dothideomycetes) based on phylogenetic analysis. Description and illustration of Seifertia shangrilaensis are provided with notes and its introduction is supported by molecular data.

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