scholarly journals Taxonomy and Molecular Phylogeny of Phellodon (Thelephorales) with Descriptions of Four New Species from Southwest China

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 932
Author(s):  
Chang-Ge Song ◽  
Xing Ji ◽  
Shun Liu ◽  
Xiao-Lan He ◽  
Bao-Kai Cui
Keyword(s):  
New Species ◽  
Ectomycorrhizal Fungi ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Absorption Capacity ◽  
Ecological Traits ◽  
Phylogenetic Studies ◽  
Ecosystem Protection ◽  
Symbiotic Fungi

Phellodon is a genus of ectomycorrhizal fungi belonging to the group known as the stipitate hydnoids. It is associated with coniferous trees in forest ecosystems and is widely distributed in the northern hemisphere. Phellodon, together with Hydnellum, and Sarcodon, is classified in the Bankeraceae, members of which are generally considered as symbiotic fungi. Ectomycorrhizal fungi can help plant roots fix nitrogen and improve the absorption capacity of soil nutrients by trees, so they play an important role in ecosystem protection. Taxonomic and phylogenetic studies of Chinese Phellodon collections were carried out. Four new Phellodon species were discovered from southwestern China based on a combination of morphological characters and molecular data. Phellodon atroardesiacus is characterized by the blackish blue to dark grey pileus, dark grey to ash grey spines, and presence of clamp connections in spines. Phellodon cinereofuscus is distinguished by a cottony tomentose pileal margin, long spines which become clay-buff when dry, and echinulate basidiospores. Phellodon stramineus is characterized by a depressed and tomentose pileus, straw buff-colored pileal surface, and dark grey to ash grey spines. Phellodon yunnanensis is distinguished by a clay-pink to brown pileus, pale brown to white spines, and the presence of clamp connections in the outer layer of stipe. Detailed descriptions, illustrations, and ecological traits for the new taxa are provided. Phylogenetic analyses inferred from the internal transcribed spacer (ITS) regions confirmed that the four new species are distinct within Phellodon.

Gatesina colombiana n. gen. & n. sp. (Hymenoptera: Chalcidoidea, Eurytomidae), new Rileyinae associated with Myrcianthes (Myrtaceae) from Colombia

Zootaxa ◽  
2018 ◽  
Vol 4471 (1) ◽  
pp. 111
Author(s):  
VÍCTOR CUESTA-PORTA ◽  
GUADALUPE CAICEDO ◽  
PAUL HANSON ◽  
JULI PUJADE-VILLAR
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Undescribed Species ◽  
Phylogenetic Studies ◽  
Neotropical Fauna ◽  
A New Species

The Neotropical fauna of Chalcidoidea (Hymenoptera) is poorly known, with numerous undescribed species and even genera. Here, we describe a new genus that also includes a new species that parasitizes Eurytominae gall-formers in fruits of Myrcianthes (Myrtaceae) in Colombia. Its conspicuous morphology supports the description of a new eurytomid genus and species, Gatesina colombiana n. gen. & n. sp., belonging to the subfamily Rileyinae. Phylogenetic studies using two matrices of morphological characters as well as molecular data confirm this result. The position of the new genus is close to Neorileya Ashmead according to the phylogenetic analyses. 

A new species of Heimioporus (Boletaceae) from southern China

Phytotaxa ◽  
2019 ◽  
Vol 415 (4) ◽  
pp. 179-188
Author(s):  
XIANG-NYU CHEN ◽  
MING ZHANG ◽  
TAI-HUI LI ◽  
NIAN-KAI ZENG
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Morphological Characters ◽  
Molecular Data ◽  
Translation Elongation ◽  
Distinct Member ◽  
Elongation Factor 1 ◽  
A New Species

Heimioporus sinensis, collected from tropical and subtropical areas of China, is introduced as a new species based on both morphological characters and molecular data. The species is characterized by the purplish red to deep magenta pileus, the reticulated stipe, the irregularly reticulate to reticulate-alveolate basidiospores 11.5–13.5 × 8–9.5 μm, and a trichodermal to intricately trichodermal pileipellis. Phylogenetic analyses based on the nuc 28S rDNA D1-D2 domains (28S) and the translation elongation factor 1-α gene (tef1-α) showed that H. sinensis is a distinct member of the genus Heimioporus in the subfamily Xerocomoideae.

scholarly journals The phylogenetic conundrum of Lutzia (Diptera: Culicidae: Culicini): a cautionary account of conflict and support

2015 ◽  
Vol 46 (3) ◽  
pp. 269-290 ◽  
Author(s):  
Ian J. Kitching ◽  
C. Lorna Culverwell ◽  
Ralph E. Harbach
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological Data ◽  
Data Set ◽  
Generic Status ◽  
Strong Signal ◽  
Phylogenetic Studies ◽  
Data Support

Lutzia Theobald was reduced to a subgenus of Culex in 1932 and was treated as such until it was restored to its original generic status in 2003, based mainly on modifications of the larvae for predation. Previous phylogenetic studies based on morphological and molecular data have provided conflicting support for the generic status of Lutzia: analyses of morphological data support the generic status whereas analyses based on DNA sequences do not. Our previous phylogenetic analyses of Culicini (based on 169 morphological characters and 86 species representing the four genera and 26 subgenera of Culicini, most informal group taxa of subgenus Culex and five outgroup species from other tribes) seemed to indicate a conflict between adult and larval morphological data. Hence, we conducted a series of comparative and data exclusion analyses to determine whether the alternative positions of Lutzia are due to conflicting signal or to a lack of strong signal. We found that separate and combined analyses of adult and larval data support different patterns of relationships between Lutzia and other Culicini. However, the majority of conflicting clades are poorly supported and once these are removed from consideration, most of the topological disparity disappears, along with much of the resolution, suggesting that morphology alone does not have sufficiently strong signal to resolve the position of Lutzia. We critically examine the results of other phylogenetic studies of culicinine relationships and conclude that no morphological or molecular data set analysed in any study conducted to date has adequate signal to place Lutzia unequivocally with regard to other taxa in Culicini. Phylogenetic relationships observed thus far suggest that Lutzia is placed within Culex but further data and extended taxon sampling are required to confirm its position relative to Culex.

scholarly journals Morpho-phylogenetic evidence reveals new species in Rhytismataceae (Rhytismatales, Leotiomycetes, Ascomycota) from Guizhou Province, China

MycoKeys ◽  
2020 ◽  
Vol 76 ◽  
pp. 81-106
Author(s):  
Jin-Feng Zhang ◽  
Jian-Kui Liu ◽  
Kevin D. Hyde ◽  
Anusha H. Ekanayaka ◽  
Zuo-Yi Liu
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Comparative Morphology ◽  
Morphological Characters ◽  
Molecular Data ◽  
Guizhou Province ◽  
Molecular Analyses ◽  
Phylogenetic Affinities ◽  
Karst Terrains

Karst formations represent a unique eco-environment. Research in the microfungi inhabiting this area is limited. During an ongoing survey of ascomycetous microfungi from karst terrains in Guizhou Province, China, we discovered four new species, which are introduced here as Hypoderma paralinderae, Terriera karsti, T. meitanensis and T. sigmoideospora placed in Rhytismataceae, based on phylogenetic analyses and morphological characters. Molecular analyses, based on concatenated LSU-ITS-mtSSU sequence data, were used to infer phylogenetic affinities. Detail descriptions and comprehensive illustrations of these new taxa are provided and relationships with the allied species are discussed, based on comparative morphology and molecular data.

scholarly journals A new species of marsupial frog (Anura; Gastrotheca) from the Cordillera de Colán in northeastern Peru

2021 ◽  
Vol 71 ◽  
pp. 201-218
Author(s):  
Pablo J. Venegas ◽  
Luis A. García-Ayachi ◽  
Lourdes Y. Echevarría ◽  
Daniel J. Paluh ◽  
Juan C. Chávez–Arribasplata ◽  
...  
Keyword(s):  
New Species ◽  
Fungal Pathogen ◽  
Batrachochytrium Dendrobatidis ◽  
Phylogenetic Analyses ◽  
Ct Scanning ◽  
Morphological Characters ◽  
Molecular Data ◽  
Species Group ◽  
Micro Ct ◽  
A New Species

We describe a new species of marsupial frog, genus Gastrotheca, using morphological characters and molecular data as lines of evidence. The new species was discovered in the páramo and the ecotone between páramo and humid montane forest of Cordillera de Colán, at elevations between 3136 and 3179 m a.s.l., in northeastern Peru. The new species is distinguished from all its congeners by the combination of the following characters: coarsely granular skin on dorsum, a green dorsal coloration without pattern, finger I shorter than finger II, turquoise iris, and a venter without blotches, flecks or dots. Furthermore, we include a detailed osteological description of the new Gastrotheca species based on Micro-CT scanning. Based on our phylogenetic analyses, the new species belongs to the Gastrotheca marsupiata species group, is sister to G. oresbios and closely related to G. psychrophila, G. spectabilis, G. stictopleura and one undescribed species. Additionally, we test for the presence of the fungal pathogen Batrachochytrium dendrobatidis (Bd). No Bd infection was detected for G. gemma sp. nov. specimens but Bd prevalence was detected among syntopic frogs.

Disentangling the taxonomy of the Galactia-Camptosema- Collaea complex with new generic circumscriptions in the Galactia clade (Leguminosae, Diocleae)

Neodiversity ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 56-94
Author(s):  
Luciano P. Queiroz ◽  
◽  
Ana C.S. Oliveira ◽  
Cristiane Snak
Keyword(s):  
Maximum Parsimony ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Genera ◽  
Genus Level ◽  
Phylogenetic Studies ◽  
Taxonomic History ◽  
Molecular Phylogenetic

The Galactia clade is one of three major lineages of the papilionoid legume tribe Diocleae. It comprises eight genera and approximately 140 species almost entirely restricted to the Americas. Establishing stable generic boundaries within this clade has been a challenge because of its tortuous taxonomic history and the broad polyphyly of the genera of the so-called Galactia-Camptosema-Collaea complex. Previous molecular phylogenetic studies revealed some well-supported lineages, but did not advance towards any new taxonomic arrangements. We carried out maximum parsimony and Bayesian phylogenetic analyses of a combined dataset including our previously published multilocus molecular data (nrITS and ETS and plastid trnK/matK and trnT-Y regions) and 82 morphological characters. The resulting topologies largely concur with those previously reported based on molecular data only, where Camptosema and Galactia appear as broadly polyphyletic, with species scattered among five (Camptosema) and seven (Galactia) of the twelve lineages that are newly recognized here at genus level. We are therefore proposing the following new taxonomic rearrangements within the Galactia clade: descriptions of the new genera Caetangil, Cerradicola, Mantiqueira, and Nanogalactia; resurrection of Betencourtia; and the subsuming of Neorudolphia into Rhodopis and of Camptosema sect. Macropetalum into Cratylia.

scholarly journals Impatiens wuyiensis (Balsaminaceae), a new species from Fujian of Southeast China, based on morphological and molecular evidences

2020 ◽  
Vol 61 (1) ◽  
Author(s):  
Jian-Sheng Wang ◽  
Yi-Fei Lu ◽  
Yue-Liang Xu ◽  
Shui-Hu Jin ◽  
Xiao-Feng Jin
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Pollen Grains ◽  
Morphological Characters ◽  
Molecular Data ◽  
Southeast China ◽  
Unknown Species ◽  
Close Relationship ◽  
Molecular Phylogenetic ◽  
Corolla Morphology

Abstract Background Southeast Asia, together with tropical Africa, Madagascar, South India and Sri Lanka, and the eastern Himalayas, are the five primary hotspots of species diversity of Impatiens (Balsaminaceae). China is also rich in Impatiens species, especially in the limestone karsts or ‘Danxia’ landforms. With zygomorphic flowers and diverse corolla morphology and color, the species in Impatiens are well-known for their ornamental use, but they are also notorious in taxonomy. During the preparation of revision of Impatiens in Zhejiang and adjacent regions, an unknown species was collected from Mt. Wuyi in Fujian Province, Southeast China. Results Phylogenetic analyses based on nuclear ITS, chloroplast atpB-rbcL and trnL-F sequences, together with micromorphology of pollen grains and seed coats, strongly supported the close relationship of the new species with Impatiens platysepala Y.L.Chen and I. chloroxantha Y.L.Chen. In turn, both molecular data and morphological characters also were sufficient to distinguish the new species from the other two counterparts. Conclusions Our detailed morphological observations and molecular phylogenetic analyses support the recognition of Impatiens wuyiensis as a species new to science.

scholarly journals Morphological and phylogenetic evidence for two new species of Russula subg. Heterophyllidia from Guangdong Province of China

MycoKeys ◽  
2021 ◽  
Vol 82 ◽  
pp. 139-157
Author(s):  
Bin Chen ◽  
Jie Song ◽  
Yanliu Chen ◽  
Jinhua Zhang ◽  
Junfeng Liang
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
Molecular Phylogeny ◽  
Phylogenetic Analyses ◽  
Guangdong Province ◽  
Morphological Characters ◽  
Molecular Data ◽  
Terminal Cell ◽  
Two New Species ◽  
Long Chains

Two new species of Russula subg. Heterophyllidia from Guangdong Province of China were described and illustrated based on morphological characters, and their identity supported by molecular phylogeny. R. luofuensis is morphologically characterized by a grayish yellow to brownish orange pileus center with a purplish gray to grayish magenta margin, a surface that is cracked and broken into small golden-brown patches, subglobose to broadly ellipsoid basidiospores with warts fused in short or long chains and a suprapellis composed of hyphal extremities with inflated, ellipsoid or globose cells and attenuated terminal cell. R. subbubalina is distinguished by the blanched almond to dark salmon pileus that is cracked with age, subglobose to broadly ellipsoid basidiospores with wart fused in short or long chains and frequently connected by line connections, a suprapellis with hyphal ends composed of inflated or ellipsoid cells and attenuated terminal cell, and pileocystidia that are mainly clavate and sometimes with round or ellipsoid appendage. The phylogenetic analyses based on ITS-nrLSU-mtSSU-TEF1 dataset were performed using maximum likelihood and Bayesian analysis. In terms of morphological features and molecular data, the former species belongs to subsect. Virescentinae, whereas the latter comes under subsect. Heterophyllinae.

scholarly journals A new terrestrial species of Chiropterotriton (Caudata: Plethodontidae) from central Mexico

Zootaxa ◽  
2017 ◽  
Vol 4363 (4) ◽  
pp. 489 ◽  
Author(s):  
MIRNA G. GARCÍA-CASTILLO ◽  
SEAN M. ROVITO ◽  
DAVID B. WAKE ◽  
GABRIELA PARRA-OLEA
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Taxon ◽  
Ecological Diversity ◽  
Undescribed Species ◽  
Morphometric Data ◽  
One New Species ◽  
Small Genus

Chiropterotriton is a relatively small genus that comprises 15 species with great morphological and ecological diversity. In previous studies, molecular data provided evidence for a considerable number of species that remain undescribed. In this study, we describe one new species, Chiropterotriton chico sp. nov. based on molecular and morphological characters. We present mtDNA phylogenetic analyses using Bayesian inference and maximum likelihood that include all described and several undescribed species. Morphometric data from eight recognized species provide evidence for the distinctiveness of the new taxon. Description of this new species adds to the already high salamander diversity of the state of Hidalgo, which is an important area for the diversification of the genus. 

A new species of the genus Achalinus (Squamata: Xenodermatidae) from southeastern Yunnan Province, China

Zootaxa ◽  
2020 ◽  
Vol 4860 (1) ◽  
pp. 116-128
Author(s):  
KE LI ◽  
MIN YU ◽  
YA-YONG WU ◽  
LIN-HONG LIAO ◽  
KUI TANG ◽  
...  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Southwest China ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Single Male ◽  
Male Specimen ◽  
Phylogenetic Studies ◽  
A New Species

A new species of the xenodermatid snake genus Achalinus Peters, 1869 is described from Yunnan Province, Southwest China, based on a single male specimen. The new species is assigned to the genus Achalinus on the basis of absence of preocular and postocular, subcaudals arranged in single row, and results of phylogenetic analyses of mitochondrial DNA CO1 sequence data. Achalinus pingbianensis sp. nov. differs from its congeners by the combination of following morphological characters: absence of a loreal, internasals subequal to that between prefrontals and dorsal scales strongly keeled, 23 rows throughout. Currently, 13 species are in the genus Achalinus, further taxonomical and phylogenetic studies based on more extensive samples and more markers will help understand the cryptic diversity and clarify their interspecific relationships. 

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