The description and molecular phylogenetic position of a new conifer-associated mite, Setoptus tsugivagus n. sp. (Eriophyoidea, Phytoptidae, Nalepellinae)

2019 ◽  
Vol 24 (4) ◽  
pp. 683
Author(s):  
Philipp Chetverikov ◽  
Eugenia A. Desnitskaya ◽  
Peter G. Efimov ◽  
Samuel Bolton ◽  
Tatjana Cvrkovic ◽  
...  
Keyword(s):  
Phylogenetic Analyses ◽  
Mite Species ◽  
Tsuga Heterophylla ◽  
Distinct Pattern ◽  
28S Rdna ◽  
Phylogenetic Position ◽  
Prodorsal Shield ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequences

A new vagrant eriophyoid mite species, Setoptus tsugivagus n. sp. Chetverikov (Eriophyoidea, Phytoptidae, Nalepellinae, Nalepellini), is described from the needles of the western hemlock, Tsuga heterophylla (Rafinesque) Sargent (Pinaceae) in Vancouver, Canada. The new species can be distinguished from all other members of Setoptus by a distinct pattern of several short longitudinal ridges on the posterior half of the prodorsal shield. Elements of the anal secretory apparatus (ASA) were observed in adults of S. tsugivagus n. sp., suggesting that the ASA is present in both major phylogenetic lineages of Eriophyoidea (Eriophyidae s. l. and Phytoptidae s. l.). Therefore, this structure could be a synapomorphy for all Eriophyoidea. We briefly discuss the function and morphological variety of the ASA in Eriophyoidea. D2 28S rDNA sequences of four nalepelline species were obtained: Boczekella reticulata Bagnyuk 1987 (GenBank accession number MK124605), Nalepella tsugifoliae Keifer 1953 (MK124606), Setoptus pini Boczek, 1964 (MK124607), and S. tsugivagus n. sp. (MK124608). Molecular phylogenetic analyses of D2 28S rDNA sequences of the mites of the subfamily Nalepellinae confirmed monophyly of the tribe Nalepellini and retrieved Setoptus and Nalepella as polyphyletic. Additionally, our data indicate that 28S rDNA sequence KF782472.1, previously reported to be Trisetacus ehmanni Keifer 1963 by Li et al. (2014), belongs to another species of the genus Trisetacus, possibly T. quadrisetus (Thomas), and the sequence KF782471.1, previously reported to be Trisetacus sp., might belong to T. juniperinus (Nalepa). We also discuss the systematics of nalepellines and their host association with conifers.

Macrostomum shenda and M. spiriger, two new brackish-water species of Macrostomum (Platyhelminthes: Macrostomorpha) from China

Zootaxa ◽  
2019 ◽  
Vol 4603 (1) ◽  
pp. 105
Author(s):  
FAN XIN ◽  
SI-YU ZHANG ◽  
YONG-SHI SHI ◽  
LEI WANG ◽  
YU ZHANG ◽  
...  
Keyword(s):  
Brackish Water ◽  
Phylogenetic Analyses ◽  
28S Rdna ◽  
Body Region ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequences ◽  
Pore Opening ◽  
Brackish Water Species ◽  
Water Species

In this study, two new brackish-water species of Macrostomum (M. shenda n. sp. and M. spiriger n. sp.) collected from Shenzhen, China, were described based on morphological, histological, and molecular phylogenetic analyses. Macrostomum shenda n. sp. differs from its congeners in the oblique and non-thickening distal opening of its narrow funnel-shaped stylet. In addition, its sperm have neither bristles nor brush, and are surrounded by an undulating membrane in the mid-body region. In M. spiriger n. sp., the stylet is spirally twisted. Its reproductive apparatus has a seminal bursal pore opening exteriorly. Results of the 18S and 28S rDNA phylogenetic analyses also support the establishments of these two new species. Moreover, the 18S and 28S rDNA sequences of some species within Macrostomum in previous studies have been revised to avoid ambiguity, while Macrostomum dongyuanensis Wang & Sun, 2015 was re-identified as a new record of M. quiritium Kolasa, 1973 from China.

scholarly journals Hymenoporus paradoxus gen. et sp. nov., a striking fungus of the family Omphalotaceae (Agaricales, Basidiomycota) with tubular hymenophore

Phytotaxa ◽  
2015 ◽  
Vol 204 (3) ◽  
pp. 203 ◽  
Author(s):  
Zdenko Tkalčec ◽  
Armin Mešić ◽  
Chun-Ying Deng ◽  
Bruna Pleše ◽  
Helena Ćetković
Keyword(s):  
New Genus ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Fungal Species ◽  
28S Rdna ◽  
Phylogenetic Position ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
Micromorphological Characters

Hymenoporus paradoxus, a new marasmioid fungal species belonging to the new genus is described from southern China. It differs from all other marasmioid species by a true tubular hymenophore, a character previously unknown in marasmioid fungi, and from all other tubular agarics by a hymenophore attached to a free collarium, and central, tough, dark and filiform stipe. The additional diagnostic characters are small basidiocarps, mostly convex pileus, smooth, hyaline, non-amyloid spores, densely packed dendriform cheilocystidia, and pileipellis composed of repent hyphae densely covered with simple to coralloid excrescences, intermixed with dendriform cells. As peculiar morphological characters had indicated, molecular phylogenetic analyses based on the 28S rDNA sequences confirm phylogenetic position of the new species in Omphalotaceae and a need to establish a new genus. Color photographs of macro- and micromorphological characters, SEM microphotographs, and a phylogenetic tree based on the partial 28S rDNA gene are provided.

Generic classification of some more hyphomycetes with solitary conidia borne on phialides

1998 ◽  
Vol 76 (9) ◽  
pp. 1570-1583 ◽  
Author(s):  
W Gams ◽  
K O'Donnell ◽  
H -J Schroers ◽  
M Christensen
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
28S Rdna ◽  
New Combination ◽  
Rdna Sequences ◽  
28S Rdna Sequences ◽  
Three New Species ◽  
Morphological Species

Unlike most phialide-producing fungi that liberate a multiplicity of conidia from each conidiogenous cell, only single conidia are formed on phialide-like conidiogenous cells in Aphanocladium, Verticimonosporium, and some species of Sibirina. A group of isolates obtained from soil of native Artemisia tridentata (sagebrush) grassland in Wyoming and from desert soil in Iraq is compared with these genera and classified as a fourth genus, Stanjemonium, honouring Stanley J. Hughes. Phylogenetic analyses of partial nuclear small- (18S) and large-subunit (28S) rDNA sequences indicate that Stanjemonium spp. form a monophyletic group with Emericellopsis. Sequences from the nuclear 18S and 28S rDNA were too conserved to resolve morphological species of Stanjemonium; however, phylogenetic analysis of b-tubulin and translation elongation factor 1a gene exons and introns resolved all species distinguished morphologically. Numerous conidiogenous cells or denticles are scattered along the cells of aerial hyphae in Aphanocladium and Stanjemonium spp., very rapidly collapsing into denticles in the former, somewhat more persistent and leaving broad scars in the latter. In Cladobotryum-Sibirina and Verticimonosporium spp., conidiogenous cells are discrete in terminal and intercalary whorls; phialides of the latter taxon are particularly swollen. The taxonomy of Aphanocladium is not yet resolved. Two species are recognized in Verticimonosporium. Three new species of Stanjemonium are described, and one new combination from Aphanocladium is proposed, along with one new species of Cladobotryum.Key words: Aphanocladium, Cladobotryum, conidiogenesis, hyphomycetes, molecular phylogeny, phialide, Stanjemonium, systematics, Verticimonosporium.

First pentasetacid mite from Australasian Araucariaceae: morphological description and molecular phylogenetic position of Pentasetacus novozelandicus n. sp. (Eriophyoidea, Pentasetacidae) and remarks on anal lobes in eriophyoid mites

2019 ◽  
Vol 24 (7) ◽  
pp. 1284-1309 ◽  
Author(s):  
Philipp Chetverikov ◽  
C. CRAEMER C. CRAEMER ◽  
T. CVRKOVIĆ T. CVRKOVIĆ ◽  
P.G. EFIMOV P.G. EFIMOV ◽  
P.B. KLIMOV P.B. KLIMOV ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Phylogenetic Analyses ◽  
Mite Species ◽  
Laser Scanning Microscopy ◽  
Coi Gene ◽  
Confocal Laser ◽  
Phylogenetic Position ◽  
Morphological Description ◽  
Eriophyoid Mites ◽  
Molecular Phylogenetic

A new vagrant eriophyoid mite species of the archaic genus Pentasetacus (Schliesske 1985), P. novozelandicus n. sp., is described with the aid of conventional microscopy, confocal laser scanning microscopy and scanning electron microscopy. It was found on Araucaria heterophylla, which is an araucarian that is endemic to Norfolk Island and introduced to New Zealand. Partial sequences of mitochondrial barcode COI gene and D1–D2 domains of nuclear rDNA of two pentasetacid mites, P. araucariae (MK903025 and MK898944) and P. novozelandicus n. sp. (MK903024 and MK898943) are provided. Molecular phylogenetic analyses of full-length D1–D2 eriophyoid sequences, including GenBank sequences and newly generated sequences of pentasetacids, confirmed the monophyly of Pentasetacidae but failed to resolve the basal phylogeny of Eriophyoidea. This may be because the D1–D2 domains of 28S are hypervariable in Eriophyoidea. Moreover, in pentasetacids D1–D2 sequences are about 20% shorter than in other eriophyoids, and thus harder to align. Two types of anal lobes are described in Eriophyoidea: (1) Eriophyidae s.l. and Phytoptidae s.l. have bilaterally symmetric lobes; (2) pentasetacids have non-divided lobes. The presence of an anal secretory apparatus, comprising internal structures that have previously been described in Eriophyidae s.l. and Phytoptidae s.l., is confirmed in pentasetacid genera. The phylogeny of pentasetacids is also discussed in the context of the paleobiography of Araucariaceae.

Two new phyllocoptine species and new records of eriophyoid mites (Eriophyidae, Phyllocoptinae) from Crimea, with evaluation of the phylogenetic position of the new taxa using GenBank data

2019 ◽  
Vol 24 (5) ◽  
pp. 882
Author(s):  
Philipp Chetverikov ◽  
Pavel Klimov ◽  
Viktoria Yu. Letukhova ◽  
Géza Ripka ◽  
Sarah Zukoff
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Mite Species ◽  
New Combination ◽  
Phylogenetic Position ◽  
Endemic Plant ◽  
Plant Host ◽  
Mitochondrial Coi ◽  
Rdna Sequences ◽  
Eriophyoid Mites

We describe two new species and report new occurrences for six species of eriophyid mites (Eriophyoidea: Eriophyidae) in Crimea: Abacarus denticulifer n. sp. from Agropyron cristatum (L.) Gaertn. (Poaceae), Aceria aculiformis Sukhareva 1986 from Melica ciliata L. (Poaceae), Aceria peucedani (Canestrini 1891) from Seseli tortuosum L. (Apiaceae), Anthocoptes recki (Bagdasarian 1972) n. comb. (from Tegonotus) from Pistacia atlantica subsp. mutica (Fisch. & C.A. Mey.) (Anacardiaceae), Epitrimerus inulae Farkas 1963 from Inula germanica L. (Asteraceae), Phyllocoptes sanctus n. sp. from Potentilla recta subsp. obscura (Willd.) (Rosaceae), Phyllocoptes bilobospinosus Chetverikov 2019 (in Chetverikov et al. 2019) from Tamarix spp. (Tamaricaceae), Tegoprionus dentatus (Nalepa 1891) from Galium verum L. (Rubiaceae). For an Indian phyllocoptine mite species associated with Apluda mutica L. (Poaceae), a new combination was proposed: Abacarus muticus (Sur & Chakrabarti 2017) n. comb. (from Mesalox). Mitochondrial COI and D2 28S rDNA sequences of three phyllocoptine species from Crimea were obtained: A. denticulifer n. sp. (GenBank accession numbers MK415989 and MK408623), P. bilobospinosus (MK408624), and P. sanctus n. sp. (MK415988 and MK408622). Comparison of all COI and D2 28S sequences of Eriophyoidea from GenBank showed that sequences JF920111 and JF920110 Aceria tulipae are identical to JF920101 Aceria tosichella, and D2 28S sequence KP297379 Tegolophus sp. is identical to KM111079 Shevtchenkella sp., which indicates either one or more misidentifications or sample contamination. Molecular phylogenetic analyses (a) confirmed the morphology-based assignment of A. denticulifer n. sp. to the Abacarus hystrix s.l. species complex, (b) supported the monophyly of Abacarus hystrix s.l., (c) revealed that the genera Phyllocoptes, Epitrimerus, and Calepitrimerus are paraphyletic, and (d) indicated that Phyllocoptini (including P. sanctus n. sp.), which are associated with Rosaceae and Caprifoliaceae, are monophyletic. The position of P. bilobospinosus was uncertain in all analyses. Based on the results of our study, it is recommended that descriptions of new species in large, putatively paraphyletic genera of Eriophyoidea include comparisons with mite species associated with the same plant family. Our work also provides new evidence that a species in a large complex of cryptic species could have evolved a distinct morphology if it is associated with an endemic plant host restricted to a geographically isolated area.

Powdery mildew caused by Erysiphe lespedezae (including Pseudoidium caesalpiniacearum, syn. nov.) on Bauhinia blakeana and B. purpurea in China

Phytotaxa ◽  
2018 ◽  
Vol 345 (1) ◽  
pp. 35 ◽  
Author(s):  
BIAO XU ◽  
UWE BRAUN ◽  
SHANHE ZHANG ◽  
HUI YANG ◽  
ZHI CAO ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Morphological Description ◽  
New Host ◽  
Rdna Sequences ◽  
Powdery Mildews ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequences

Bauhinia species are popular ornamental and medicinal plants with a pantropical distribution. In December 2016, powdery mildew symptoms were found on B. blakeana and B. purpurea in Guangdong, China. Based on ITS and 28S rDNA sequences, as well as morphological characters, the powdery mildew was identified as Erysiphe lespedezae. Previous records of powdery mildews on Bauhinia spp. are discussed. Based on morphological and molecular phylogenetic analyses of type material, Pseudoidium caesalpiniacearum is reduced to synonymy with E. lespedezae. To our best knowledge, this is the first report of E. lespedezae causing powdery mildew on B. purpurea in China, and B. blakeana as a new host. A detailed morphological description and molecular data are provided herein.

scholarly journals Erysiphe deutziicola sp. nov. (Erysiphaceae, Ascomycota), a powdery mildew species found on Deutzia parviflora (Hydrangeaceae) with unusual appendages

MycoKeys ◽  
2019 ◽  
Vol 51 ◽  
pp. 97-106
Author(s):  
Peng-Lei Qiu ◽  
Uwe Braun ◽  
Yu Li ◽  
Shu-Yan Liu
Keyword(s):  
New Species ◽  
Powdery Mildew ◽  
Microscopic Examination ◽  
Phylogenetic Analyses ◽  
28S Rdna ◽  
Bootstrap Support ◽  
Rdna Sequences ◽  
28S Rdna Sequences ◽  
Beijing China ◽  
Ornamental Shrub

A powdery mildew (Erysiphales) has recently been collected on leaves of an ornamental shrub Deutziaparviflora in Baihua Mountain, Beijing, China. Microscopic examination of the chasmothecia suggested a species belonging to Erysiphesect.Erysiphe, above all due to mycelioid chasmothecial appendages, although circinate apices of the appendages were rather in favour of Erysiphesect.Uncinula, which is a fairly rare combination of appendage characteristics in Erysiphe. Phylogenetic analyses of ITS and 28S rDNA sequences demonstrated that the two examined powdery mildew collections on D.parviflora clustered together as an independent lineage within Erysiphe with 100% bootstrap support, representing a species of its own, which is phylogenetically allied to, but clearly distinct from Erysiphedeutziae and, in addition, morphologically quite different from all known Erysiphe species on hosts belonging to the Hydrangeaceae. The new species on D.parviflora is described as Erysiphedeutziicola.

Phylogenetic relationships of the lower Cyclorrhapha (Diptera: Brachycera) based on 28S rDNA sequences

2002 ◽  
Vol 33 (4) ◽  
pp. 445-456 ◽  
Author(s):  
Brian M. Wiegmann ◽  
Kenneth P. Collins
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationships ◽  
Phylogenetic Analyses ◽  
Sister Group ◽  
28S Rdna ◽  
Morphological Data ◽  
Monophyletic Clade ◽  
Rdna Sequences ◽  
28S Rdna Sequences

AbstractCyclorrhaphan Diptera are an extremely successful clade of ecologically and phylogenenetically important flies. Despite their significance the relationships among lower cyclorrhaphans ('Aschiza') remain controversial in spite of several morphologically based phylogenetic analyses. We sequenced a 2.7-kb fragment of 28S rDNA for taxa representing all lower cyclorrhaphan families (except Ironomyiidae), four schizophoran families, and seven empidoid out-group taxa. Phylogenetic analysis of these data strongly supports a monophyletic Cyclorrhapha (including the enigmatic taxon Opetia nigra) that is divided into two clades - a well-supported Eumuscomorpha (Syrphidae + Pipunculidae + Schizophora), and a weakly-supported Platypezoidea (all non-Eumuscomorpha). Consequently, the former grouping known as Aschiza, which included syrphids and pipunculids, is not a valid monophyletic clade. Within Platypezoidea, most of our analyses place Lonchopteridae as sister group to Opetiidae, and strongly support the monophyly of Sciadoceridae + Phoridae. Among the Eumuscomorpha we do not recover the monophyly of Syrphoidea (Syrphidae + Pipunculidae). Instead, all analyses place Pipunculidae as the sister group to Schizophora. This novel finding has never been proposed based on morphological data and will require more data (both molecular and morphological) and taxa to confirm.

Systematic revision, cladistics and biogeography of the genus Neogutierrezia Martínez (Coleoptera:Scarabaeidae) and its phylogenetic placement in Rutelinae based on structural alignment of 28S rDNA sequences

2010 ◽  
Vol 24 (1) ◽  
pp. 81 ◽  
Author(s):  
Federico C. Ocampo ◽  
Eider Ruiz-Manzanos ◽  
Adriana E. Marvaldi
Keyword(s):  
Structural Alignment ◽  
Phylogenetic Reconstruction ◽  
Cladistic Analysis ◽  
28S Rdna ◽  
Structure Alignment ◽  
28S Rrna ◽  
Systematic Revision ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequences

The Argentinean endemic genus Neogutierrezia Martínez, 1953 (Scarabaeidae : Rutelinae) is revised and seven new species are described: N. bicolor Ocampo & Ruiz-Manzanos, sp. nov., N. chelii Ocampo & Ruiz-Manzanos, sp. nov., N. galileoi Ocampo & Ruiz-Manzanos, sp. nov., N. lagosae Ocampo & Ruiz-Manzanos, sp. nov., N. payuniensis Ocampo & Ruiz-Manzanos, sp. nov., N. scutata Ocampo & Ruiz-Manzanos, sp. nov. and N. variabilis Ocampo & Ruiz-Manzanos, sp. nov. Species status is proposed for N. affinis Martínez stat. nov., which was formerly considered as subspecies of N. mirabilis Martínez. The genus Neogutierrezia now includes 10 species distributed in the Monte biogeographic province in Argentina. In order to clarify the systematic placement of the genus Neogutierrezia, a molecular phylogenetic analysis was performed using structurally aligned 28S rDNA sequences (expansion segments D2 and D3) from 23 taxa in Scarabaeoidea, including two representative species of Neogutierrezia. This is the first report of an annotated secondary structure alignment of the D2 and D3 segments of 28S rRNA that spans a wide sample of scarabaeoids, providing a useful homology template for further phylogenetic reconstruction in these and closely related beetles. Results of the molecular parsimony analysis strongly indicate that the genus is closely related to members of the Rutelinae (Scarabaeidae), and thus Neogutierrezia Martínez is transferred from Melolonthinae: Pachydemini to Rutelinae, new placement. A morphological cladistic analysis of the genus was also undertaken, including all the 10 known species in the genus plus two outgroup taxa in Rutelinae, and based on 53 adult characters. The most-parsimonious cladogram provides evidence for the monophyly of the genus, which shows three main clades, distributed in Central Monte and Southern Monte. The adult morphology of the 10 species is described and a key is provided, along with illustrations of the diagnostic characters. The biogeography of species in the genus is discussed.

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