scholarly journals The Genus Leccinum (Boletaceae, Boletales) from China Based on Morphological and Molecular Data

2021 ◽  
Vol 7 (9) ◽  
pp. 732
Author(s):  
Xin Meng ◽  
Geng-Shen Wang ◽  
Gang Wu ◽  
Pan-Meng Wang ◽  
Zhu L. Yang ◽  
...  
Keyword(s):  
New Species ◽  
Color Change ◽  
Molecular Data ◽  
Line Drawings ◽  
Important Group ◽  
Microscopic Features ◽  
Identification Of Species ◽  
Greenish Blue ◽  
Morphological And Molecular Data ◽  
Three New Species

Leccinum is one of the most important groups of boletes. Most species in this genus are ectomycorrhizal symbionts of various plants, and some of them are well-known edible mushrooms, making it an exceptionally important group ecologically and economically. The scientific problems related to this genus include that the identification of species in this genus from China need to be verified, especially those referring to European or North American species, and knowledge of the phylogeny and diversity of the species from China is limited. In this study, we conducted multi-locus (nrLSU, tef1-α, rpb2) and single-locus (ITS) phylogenetic investigations and morphological observisions of Leccinum from China, Europe and North America. Nine Leccinum species from China, including three new species, namely L. album, L.parascabrum and L.pseudoborneense, were revealed and described. Leccinum album is morphologically characterized by the white basidioma, the white hymenophore staining indistinct greenish blue when injured, and the white context not changing color in pileus but staining distinct greenish blue in the base of the stipe when injured. Leccinumparascabrum is characterized by the initially reddish brown to chestnut-brown and then pale brownish to brown pileus, the white to pallid and then light brown hymenophore lacking color change when injured, and the white context lacking color change in pileus but staining greenish blue in the base of the stipe when injured. Leccinumpseudoborneense is characterized by the pale brown to dark brown pileus, the initially white and then brown hymenophore lacking color change when injured, and the white context in pileus and stipe lacking color change in pileus but staining blue in stipe when bruised. Color photos of fresh basidiomata, line drawings of microscopic features and detailed descriptions of the new species are presented.

scholarly journals Two new species of Chalciporus (Boletaceae, Boletales) from tropical China

2021 ◽  
Author(s):  
Chang Xu ◽  
Zhi-Qun Liang ◽  
Hui-Jing Xie ◽  
Shuai Jiang ◽  
Xin-Hua Fu ◽  
...  
Keyword(s):  
New Species ◽  
New Taxa ◽  
Molecular Data ◽  
Line Drawings ◽  
Two New Species ◽  
Microscopic Features ◽  
Morphological And Molecular Data ◽  
Tropical China

Abstract Two new species of Chalciporus (Boletaceae, Boletales), viz. C. nigrofuscus and C. vulparius, are described based on morphological and molecular data. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the two new taxa are presented. In addition, a key to all known species of Chalciporus in China is provided.

Three new species of Sectonema Thorne, 1930 (Dorylaimida: Aporcelaimidae) from Vietnam

Nematology ◽  
2016 ◽  
Vol 18 (5) ◽  
pp. 517-536 ◽  
Author(s):  
Sergio Álvarez-Ortega ◽  
Thi Anh Duong Nguyen ◽  
Joaquín Abolafia ◽  
Thi Thanh Tam Vu ◽  
Michael Bonkowski ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationship ◽  
Ventral Side ◽  
Molecular Data ◽  
Evolutionary Tree ◽  
Neck Length ◽  
Natural Habitats ◽  
Line Drawings ◽  
Close Phylogenetic Relationship ◽  
Three New Species

Three new species of the genus Sectonema collected from natural habitats in Vietnam are studied, described and illustrated, including line drawings, LM and/or SEM pictures. Sectonema birrucephalum sp. n. is characterised by its 2.73-4.35 mm long body, lip region 18-20 μm broad and offset by deep constriction, odontostyle 10.0-11.5 μm long on its ventral side, 659-989 μm long neck, pharyngeal expansion occupying 63-68% of total neck length, uterus a simple tube, 221-277 μm long, pars refringens vaginae present, V = 54-56, tail short (31-43 μm, c = 85-111, c′ = 0.6-0.8) and rounded, spicules 72-75 μm long, and four or five irregularly spaced ventromedian supplements beyond the range of the spicules. Sectonema buccociliatum sp. n. is distinguished by its 2.00-2.46 mm long body, lip region offset by constriction, 19-20 μm broad and bearing perioral cilia-like structures, odontostyle 13-14 μm long at its ventral side, 530-625 μm long neck, pharyngeal expansion occupying 62-69% of total neck length, uterus a simple tube, 116-152 μm long, pars refringens vaginae present, V = 56-62, tail short (23-31 μm, c = 72-104, c′ = 0.6-0.8) and rounded, spicules 56-68 μm long, and 3-5 spaced and weakly developed ventromedian supplements beyond the range of the spicules. Sectonema ciliatum sp. n. is characterised by its 2.79-3.13 mm long body, lip region offset by constriction, 21-22 μm broad and bearing perioral cilia-like structures, odontostyle 14-15 μm long at its ventral side, 699-722 μm long neck, pharyngeal expansion occupying 60% of total neck length, uterus a simple tube, 201-244 μm long, pars refringens vaginae present, V = 52-53, tail short (33-35 μm, c = 82-92, c′ = 0.6-0.7) and rounded, spicules 70-72 μm long, and three or four spaced and weakly developed ventromedian supplements beyond the range of the spicules. Molecular data obtained for S. ciliatum sp. n. and the derived evolutionary tree show a close phylogenetic relationship with other species of the genus.

scholarly journals Diversity and distribution of Epeorus (Caucasiron) (Ephemeroptera, Heptageniidae) in Iran, with descriptions of three new species

ZooKeys ◽  
2020 ◽  
Vol 947 ◽  
pp. 71-102
Author(s):  
Ľuboš Hrivniak ◽  
Pavel Sroka ◽  
Jindřiška Bojková ◽  
Roman J. Godunko ◽  
Javid Imanpour Namin ◽  
...  
Keyword(s):  
New Species ◽  
Habitat Preferences ◽  
Molecular Data ◽  
Central Iran ◽  
Integrative Approach ◽  
Northern Iran ◽  
Coi Sequences ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time

Combining morphological and molecular data in an integrative approach, three new mayfly species of Epeorus (Caucasiron) are described. These include Epeorus (Caucasiron) alborzicus Hrivniak & Sroka, sp. nov. and Epeorus (Caucasiron) shargi Hrivniak & Sroka, sp. nov. from northern Iran, and Epeorus (Caucasiron) zagrosicus Hrivniak & Sroka, sp. nov. from central Iran. They are unambiguously delimited using both distance-based and likelihood-based approaches in the analyses of barcode COI sequences. Each new species is compared with other species of the subgenus and morphological diagnostic characters are provided. Based on extensive sampling of streams throughout the country, the distribution and habitat preferences of all Caucasiron species in Iran are assessed. Altogether, there are now six species recorded, among them also E. (C.) nigripilosus Sinitshenkova, 1976 is reported for the first time in Iran. Five species are distributed in the Alborz Mts. in northern Iran, one species was found in the Zagros Mts. in central Iran.

scholarly journals A revision of Onychelmis Hinton, 1941 (Coleoptera: Elmidae), with description of new species, DNA barcoding and notes on the geography of the genus

2021 ◽  
Vol 739 ◽  
pp. 1-35
Author(s):  
Marek Linský ◽  
Zuzana Čiamporová-Zaťovičová ◽  
Fedor Čiampor Jr
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Species Delimitation ◽  
Molecular Data ◽  
Distribution Map ◽  
Line Drawings ◽  
The Andes ◽  
Long Time ◽  
New Material ◽  
Morphological And Molecular Data

The genus Onychelmis Hinton, 1941 was for a long time regarded as a small taxon with only three known species distributed in the Andes. A study of new material from Ecuador, using morphological and molecular data, has resulted in the discovery of five new species: Onychelmis lenkae sp. nov., O. lobata sp. nov., O. minor sp. nov., O. onorei sp. nov. and O. splendida sp. nov. We also revised the entire genus and redescribed the three known species, O. longicollis (Sharp, 1882), O. leleupi Delève, 1968 and O. whiteheadi Spangler & Santiago, 1991. Habitus photographs of adults are provided, together with line drawings of male and female genitalia, and schematic illustrations of the distribution of femoral tomentum for each species. DNA sequences for barcoding the COI mtDNA fragment were used to support species delimitation and to suggest possible relationships among species. The revision includes a key to adults of all species of Onychelmis and notes on the biogeography of the genus, with an updated distribution map.

Three new species of the genus Dendronotus from Japan and Russia (Mollusca, Nudibranchia)

Zootaxa ◽  
2020 ◽  
Vol 4747 (3) ◽  
pp. 495-513
Author(s):  
ALEXANDER MARTYNOV ◽  
YOSHIHIRO FUJIWARA ◽  
SHINJI TSUCHIDA ◽  
NADEZHDA SANAMYAN ◽  
KAREN SANAMYAN ◽  
...  
Keyword(s):  
New Species ◽  
North Pacific ◽  
Molecular Data ◽  
The North ◽  
Pacific Waters ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time ◽  
Japanese Islands ◽  
The North Pacific

Three new species of the genus Dendronotus are described from the North Pacific waters of Japan and Russia. For the first time since 1949, three new species, D. jamsteci sp. nov., D. zakuro sp. nov. and D. bathyvela sp. nov. are described from the waters of the Japanese Islands. D. zakuro sp. nov. was also discovered in the waters of Russia (Kamchatka). The descriptions of the new species D. jamsteci sp. nov. and D. zakuro sp. nov. are based on morphological and molecular data; D. bathyvela sp. nov. morphologically belongs to the group of D. robustus, D. velifer and D. patricki. This study revises our knowledge of North Pacific species of the genus Dendronotus, considerably expands the number of species worldwide and contributes to the multilevel fine-scale diversity concept. 

scholarly journals On Kincaidiana Altman, 1936 and Guestphalinus Michaelsen, 1933 (Annelida, Clitellata, Lumbriculidae), with the descriptions of three new species

2017 ◽  
Author(s):  
Steven V. Fend ◽  
Pilar Rodriguez ◽  
Ainara Achurra ◽  
Christer Erséus
Keyword(s):  
New Species ◽  
Molecular Data ◽  
Reproductive Organs ◽  
Rrna Gene ◽  
28S Rrna ◽  
Single Variable ◽  
The Family ◽  
Variable Species ◽  
Morphological And Molecular Data ◽  
Three New Species

Two formerly monotypic lumbriculid genera, Guestphalinus Michaelsen, 1933 and Kincaidiana Altman, 1936, are reviewed using morphological and molecular data, following the discovery of new northwestern, Nearctic species. Several populations of Kincaidiana hexatheca Altman, 1936 were examined, and both morphology and DNA data suggest a single, variable species in Pacific drainages extending from northern California through Washington, USA. Specimens of Kincaidiana from the Smith River drainage with a single, median atrium and differing genetically from K. hexatheca are assigned to K. smithi sp. nov. The chaetal morphology of North American Guestphalinus populations is variable, and two basic morphotypes are assigned to G. elephantinus sp. nov. and G. exilis sp. nov. This decision is supported by molecular data. The tree topology, based on the mitochondrial 16S rRNA and Cytochrome Oxidase I (COI), and the nuclear 28S rRNA gene sequences, confirmed the close phylogenetic relationships among the Nearctic Guestphalinus, Kincaidiana and Uktena Fend, Rodriguez & Lenat, 2015. Probable synapomorphies associating these genera include a filiform, ringed proboscis, a forward shift of reproductive organs relative to the usual position in the family, and spermathecae in the atrial segment.

A revision of the Paracanthocobitis zonalternans (Cypriniformes: Nemacheilidae) species complex with descriptions of three new species 

Zootaxa ◽  
2017 ◽  
Vol 4324 (1) ◽  
pp. 85 ◽  
Author(s):  
RANDAL A. SINGER ◽  
JOHN M. PFEIFFER ◽  
LAWRENCE M. PAGE
Keyword(s):  
New Species ◽  
Species Complex ◽  
Morphological Changes ◽  
Molecular Data ◽  
Genetic Distances ◽  
Andaman Sea ◽  
Surprising Result ◽  
Geographic Ranges ◽  
Morphological And Molecular Data ◽  
Three New Species

The Paracanthocobitis zonalternans species complex is revised based on analysis of morphological and molecular data. Three new species, P. nigrolineata, P. marmorata, and P. triangula are described, and P. phuketensis is removed from synonymy. All species are described morphologically, geographic ranges are delimited, and relationships are discussed for those for which molecular data (cytochrome c oxidase subunit 1 - COI) are available. In view of the morphological similarities of some of the species, a surprising result of this study was the moderately large genetic distances among species. Uncorrected COI p-distances between geographic clades of P. zonalternans ranged from 7.6–9.3%, suggesting that the species are reproductively isolated from one another even though morphological changes are minor. Paracanthocobitis phuketensis, distributed in several rivers draining to the Gulf of Thailand and to the Andaman Sea, shows considerable intraspecific variation that should be explored in detail for historical and ecological explanations. Cobitis chlorosoma McClelland, 1839 from Assam, India, is a synonym of P. botia, not P. zonalternans. 

Two new species of the genus Leccinellum (Boletaceae, Boletales) from the south of China

Phytotaxa ◽  
2019 ◽  
Vol 411 (2) ◽  
pp. 93-104
Author(s):  
ROU XUE ◽  
LU-LING WU ◽  
SHUAI JIANG ◽  
YAN-JIA HAO ◽  
HUI CHAI ◽  
...  
Keyword(s):  
New Species ◽  
Color Change ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Subtropical China ◽  
Line Drawings ◽  
Red Color ◽  
Two New Species ◽  
Tropical China ◽  
Pyriform Cells

Two new species of Leccinellum, viz. L. alborufescens and L. fujianense are described based on morphological and molecular evidence. Both species have a rugulose or pitted brown pileus, a red color change of hymenophore and context, and a pileipellis and stipitipellis composed of chains of subglobose to pyriform cells. The differences between them are the width of the hyphae in the pileipellis and the range of distribution as well as the molecular data. Leccinellum alborufescens has hyphae in the pileipellis up to 13 μm in width, and a distribution in tropical China, whereas L. fujianense has pileipellis hyphae up to 20 μm in width, and a distribution in subtropical China. Detailed descriptions, color photos of fresh basidiomata and line drawings of the microstructures of the two new species are presented.

Remarkable sexual dimorphism, rarity and cryptic species: a revision of the ‘aegrota species group’ of the Neotropical butterfly genus Caeruleuptychia with the description of three new species (Lepidoptera, Nymphalidae, Satyrinae)

2018 ◽  
Vol 49 (2) ◽  
pp. 130-182 ◽  
Author(s):  
Shinichi Nakahara ◽  
Thamara Zacca ◽  
Blanca Huertas ◽  
Andrew F. E. Neild ◽  
Jason P. W. Hall ◽  
...  
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Cryptic Species ◽  
Molecular Data ◽  
Species Group ◽  
Morphological Data ◽  
Phylogenetic Hypothesis ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
First Time

The ‘aegrota species group’ of the Neotropical nymphalid genus Caeruleuptychia Forster, 1964, in addition to three other superficially similar, enigmatic species in the genus, are revised. A lectotype is designated for Euptychia aegrota Butler, 1867, E. aetherialis Butler, 1877 stat. rev., E. helios Weymer, 1911 and E. pilata Butler, 1867, and C. aetherialis is resurrected from its synonymy with C. aegrota. Caeruleuptychia helios caelestissima Brévignon, 2010, syn. nov., and Magneuptychia keltoumae Brévignon & Benmesbah, 2012, syn. nov. are both regarded as junior subjective synonyms of C. helios (Weymer, 1911), as a result of the discovery and first illustration of the female of this taxon. The female of C. aegrota is also described and illustrated for the first time, and three new species, C. trembathi Willmott, Nakahara, Hall & Neild, sp. nov., C. scripta Nakahara, Zacca & Huertas, sp. nov., and C. maryzenderae Lamas & Nakahara, sp. nov. are described and named. We analyze morphological and molecular data separately, in addition to combining morphological data with molecular data, to provide the first phylogenetic hypothesis for the taxa treated in this revision.

scholarly journals Three new species and a new genus of majoid crabs from the eastern Pacific (Decapoda, Brachyura)

ZooKeys ◽  
2019 ◽  
Vol 825 ◽  
pp. 1-24 ◽  
Author(s):  
Jessica Colavite ◽  
Amanda Windsor ◽  
William Santana
Keyword(s):  
New Species ◽  
New Genus ◽  
Molecular Data ◽  
Eastern Pacific ◽  
Western Atlantic ◽  
Deep Waters ◽  
Morphological And Molecular Data ◽  
Three New Species ◽  
A New Species ◽  
General Appearance

Three new species and a new genus of majoid crabs from deep waters in the eastern Pacific are described and illustrated using morphological and molecular data. A new species of inachoidid, Collodesanartiussp. n. is described from Peru, which resembles C.tenuirostris Rathbun, 1893, in the general appearance of the carapace, but is distinguished by the details of tubercles on the carapace and thoracic sternum, proportions of the pereopod articles, and bathymetric distribution. A new epialtid, Nibiliamachalasp. n., is described from Ecuador; Nibilia A Milne-Edwards, 1878 has, until now, been considered to be monotypic, occurring only in the western Atlantic. This new species, from the eastern Pacific, closely resembles N.antilocapra (Stimpson, 1871) in the general morphology, but can be distinguished by the number of spines on the carapace and pereopods. Another epialtid, Solincaaulixgen. n. et sp. n, is establish for material collected from Ecuador and Peru, and can be easily identified from other taxa by the presence of a deep furrow between the very inflated branchial regions.

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