Gyrodactylus derjavinoides sp. nov. (Monogenea, Platyhelminthes) on Salmo trutta trutta L. and G. derjavini Mikailov, 1975 on S. t. caspius Kessler, two different species of Gyrodactylus — combined morphological and molecular investigations

2007 ◽  
Vol 52 (2) ◽  
Author(s):  
Göran Malmberg ◽  
Catherine Collins ◽  
Carey Cunningham ◽  
Behiar Jalali
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Analysis ◽  
Salmo Trutta ◽  
Western Europe ◽  
Species Differences ◽  
Its Rdna ◽  
Intraspecific Variations ◽  
Morphological Differences ◽  
Salmo Trutta Caspius

AbstractThe paper deals with two morphologically similar but molecularly clearly different species of Gyrodactylus: G. derjavinoides sp. nov. on Salmo trutta trutta L. in Western Europe and G. derjavini Mikailov. 1975 collected on Salmo trutta caspius Kessler in Iran. The new species is described and its opisthaptoral hard parts compared to those of G. derjavini. Our molecular analysis of G. derjavinoides and G. derjavini confirmed that the morphological differences between them are species differences and not intraspecific variations. Phylogenetic analysis using the ITS rDNA region placed both species within the subgenus G. (Limnonephrotus) and within the G. wageneri-group, quite in accordance with morphological results. The two species, however, did not cluster as sister taxa. The correspondence between molecular-based clades within G. (Limnonephrotus) and the morphological shapes of marginal hooks within these clades are discussed. The importance of combined molecular and morphological analyses when describing or redescribing Gyrodactylus species is stressed.

scholarly journals Tuber aztecorum sp. nov., a truffle species from Mexico belonging to the Maculatum clade (Tuberaceae, Pezizales)

MycoKeys ◽  
2018 ◽  
Vol 30 ◽  
pp. 61-72 ◽  
Author(s):  
Gonzalo Guevara-Guerrero ◽  
Gregory Bonito ◽  
Matthew E. Smith ◽  
Roseanne Healy ◽  
Arthur Grupe ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Related Species ◽  
Sequence Variation ◽  
Morphological Features ◽  
Its Rdna ◽  
Central Mexico ◽  
North Eastern ◽  
A New Species

A new species of truffle, T.aztecorum, is described from central Mexico. Tuberaztecorum can be distinguished from other related Tuber species synoptically by a combination of morphological features including ascospore size, pellis cells with irregular thickness, cystidia, ascoma colour and associated host (Abiesreligiosa an endemic Abies species from central Mexico); sequence variation on the ITS rDNA also distinguishes T.aztecorum from related species. A phylogenetic analysis of the ITS rDNA demonstrates that T.aztecorum belongs to the Maculatum clade and is unique from other similar small, white-cream coloured Tuber species distributed in north-eastern Mexico such as T.castilloi and T.guevarai.

Orbilia laevimarginata sp. nov. and its asexual morph

Phytotaxa ◽  
2015 ◽  
Vol 203 (3) ◽  
pp. 245 ◽  
Author(s):  
Ying Zhang ◽  
Xiaoxia He ◽  
Hans-Otto Baral ◽  
Min Qiao ◽  
Michael Weiβ ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Characters ◽  
Undescribed Species ◽  
Asexual Morph ◽  
Rdna Sequences ◽  
Morphological Differences ◽  
Phylogenetic Divergence ◽  
A New Species ◽  
Trapping Devices

O. laevimarginata is here described as a new species, and also its asexual morph could not be assigned to an existing taxon. Anamorphic strains were obtained from three teleomorph specimens which were collected at different sites and dates. The anamorph is characterized by cylindric-ellipsoid to oblong conidia, mainly 1-septate, growing either singly or mostly from 2–10 denticles in a capitate arrangement on the tip of conidiophores. These morphological characters are similar to those of the nematophagous anamorph genus Arthrobotrys, but the present isolates lack the ability to produce any trapping devices when contacting with nematodes. Phylogenetic analysis inferred from ITS rDNA sequences on different groups within Orbilia showed that the isolates of O. laevimarginata clustered together in a clade separate from Orbilia crenatomarginata (= Hyalinia crystallina). The two species are close to O. scolecospora and an undescribed species, which all have a crenulate to dentate apothecial margin composed of solid glassy processes. The group clustered distant from those species identified within the nematode-trapping anamorph genera Arthrobotrys, Dactylellina and Drechslerella, but also distant from the non-predacious anamorph genus Dactylella. By combining morphological and phylogenetic analysis, we conclude that the three isolates belong to a single undescribed holomorph species. The morphological differences among the three isolated anamorphic strains, and phylogenetic divergence of nematode-trapping fungi and related species are discussed.

Seasonal variation of morphological characters of Chondrilla aff. nucula (Porifera: Demospongiae) from the south-east coast of Brazil

2007 ◽  
Vol 87 (6) ◽  
pp. 1727-1732 ◽  
Author(s):  
Fernanda F. Cavalcanti ◽  
Carla Zilberberg ◽  
Michelle Klautau
Keyword(s):  
New Species ◽  
Species Complex ◽  
Species Differences ◽  
East Coast ◽  
Molecular Study ◽  
Morphological Characters ◽  
Long Time ◽  
Morphological Differences ◽  
Chondrilla Nucula ◽  
Janeiro State

Chondrilla nucula is a morphologically simple species defined by the presence of spherasters in its skeleton. For a long time C. nucula was considered a cosmopolitan species, however, in 1999, a molecular study demonstrated the existence of a species complex with at least four cryptic species, besides C. nucula. At that time, those four new species were not formally described because the morphological differences observed did not reflect species differences and were attributed to plasticity. Since then, researchers working on Chondrilla species suggested that the skeletal organization, the distribution of spherulous cells and the type of surface should be used to differentiate species. Individuals of Chondrilla aff. nucula from one population in Arraial do Cabo, Rio de Janeiro State, Brazil, were collected monthly and analysed in order to test the validity of those three characters to separate the species of Chondrilla. Moreover, to determine if the differences in spicule dimensions previously found were seasonal, we also quantified the diameter of the spherasters throughout the year. Our results demonstrate that all analysed characters are extremely variable and that spicule size can vary even at the same locality. The present study shows the importance of testing the variability of morphological characters before describing new species. Unfortunately, until valid taxonomic characters are found, the Atlantic Chondrilla species will have to remain undescribed.

A new species of Rhododendron (Ericaceae) from the Gaoligong Mountains, Yunnan, China, supported by morphological and DNA barcoding data

Phytotaxa ◽  
2013 ◽  
Vol 114 (1) ◽  
pp. 42 ◽  
Author(s):  
YONGPENG MA ◽  
ZHIKUN WU ◽  
RUIJUAN XUE ◽  
XIAOLING TIAN ◽  
LIANMING GAO ◽  
...  
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Molecular Analysis ◽  
Dna Barcodes ◽  
Eastern Side ◽  
Mature Leaves ◽  
Morphological Differences ◽  
A New Species

Rhododendron baihuaense sp. nov. is described as a new species endemic to Yunnan, China, that has, to date, only been found in Baihualing on the eastern side of the Gaoligong Mountains. Morphologically, R. baihuaense can be readily distinguished from R. hanceanum and R. genestierianum, by its absent scales on mature leaves, only 2–5 flowers per inflorescence, the funnel-shaped flower and white corolla, and its slender and erect style. A molecular analysis based on the four standard DNA barcodes (rbcL, matK, trnH-psbA and ITS) indicates that R. baihuaense is genetically distinct from R. hanceanum and R. genestierianum, and, together with the morphological differences, is described here as a new species.

Systematic analyses of Ophiocordyceps ramosissimum sp. nov., a new species from a larvae of Hepialidae in China

Phytotaxa ◽  
2014 ◽  
Vol 161 (3) ◽  
pp. 227 ◽  
Author(s):  
TING-CHI WEN ◽  
YUAN-PIN XIAO ◽  
WEN-JING LI ◽  
JI-CHUAN KANG ◽  
KEVIN D. HYDE
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Its Rdna ◽  
Hunan Province ◽  
Similar Species ◽  
Rpb1 Gene ◽  
A New Species

A new species, Ophiocordyceps ramosissimumsp. nov., is described and illustrated. It was associated with larvae of Phassus nodus (Hepialidae) collected from Xuefeng Mountains, Hunan Province, China. It differs from similar species in having branched stromata without a sterile apex, superficial ascomata, and very wide asci and ascospores and in its occurrence on Phassus nodus in living roots or trunks of Clerodendrum cyrtophyllum. Multi-gene phylogenetic analysis of 5.8S-ITS rDNA, nrSSU, EF-1α, and RPB1 gene loci also confirmed the distinctiveness of this new species.

scholarly journals Systematics of the new genus Spinosuncus Chen, Zhang & Li with descriptions of four new species (Lepidoptera, Crambidae, Pyraustinae)

ZooKeys ◽  
2018 ◽  
Vol 799 ◽  
pp. 115-151
Author(s):  
Kai Chen ◽  
Dandan Zhang ◽  
Houhun Li
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
16S Rrna ◽  
New Genus ◽  
Sequence Data ◽  
Identification Key ◽  
Interspecific Relationships ◽  
Oriental Region ◽  
Intraspecific Variations

The new genus Spinosuncusgen. n. is proposed for three known species, S.contractalis (Warren, 1896), comb. n., S.praepandalis (Snellen, 1890), comb. n., and S.aureolalis (Lederer, 1863), comb. n. and four new species, S.rectacutussp. n., S.brevacutussp. n., S.curvisetaceussp. n., and S.quadracutussp. n. from the Oriental Region. An identification key is provided for all species. The habiti and genitalia of all species are figured. The monophyly of the genus is well supported by a phylogenetic analysis based on sequence data of the COI, 16S rRNA, and EF-1α genes. The potential sister groups of the new genus, the interspecific relationships and some intraspecific variations within the genus are discussed.

scholarly journals Two new species of Jalapriya and a new record, Dictyocheirospora vinaya from freshwater habitats in China

2021 ◽  
Vol 9 ◽  
Author(s):  
Xi Fu ◽  
Dan-Feng Bao ◽  
Zong-Long Luo ◽  
Xiu He ◽  
Hong-Yan Su
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Analysis ◽  
New Record ◽  
Sequence Data ◽  
Extant Species ◽  
Two New Species ◽  
Apical Cells ◽  
Freshwater Habitats

Pleosporales is the largest order of Dothideomycetes. In recent years, systematics of Pleosporales have undergone considerable revisions. Dictyosporiaceae is one of the newly established families within this order proposed to accommodate holomorphic saprobic Dothideomycetes. Currently 18 genera are recognised in Dictyosporiaceae. The new species, Jalapriya aquaticum sp. nov. and J. apicalivaginatum sp. nov. were collected from freshwater habitats in Gansu and Yunnan Provinces, China, respectively and are introduced, based on morphology and molecular analysis of combined ITS, LSU, SSU and TEF1-α sequence data. We also recovered one fresh collection of Dictyocheirospora vinaya D’souza, Bhat & K.D. Hyde, which is a new record for China. Jalapriya aquaticum differs from extant species of Jalapriya in rows converging at the apex and apical cells with spherical-like appendages. Jalapriya apicalivaginatum differs from extant species of Jalapriya in having the rows of conidia mostly arranged in a plane. The phylogenetic analysis place the new collections within Dictyosporiaceae (Pleosporales). Descriptions and illustrations of Jalapriya aquaticum, J. apicalivaginatum and Dictyocheirospora vinaya are provided. A synopsis of characters of species of Jalapriya is also provided.

Morphological and molecular analysis of Ornithodoros hasei and Ornithodoros sp. cf. O. mimon (Acari: Argasidae) from northeastern Argentina

2022 ◽  
Author(s):  
Ingrid M. D. Di Benedetto ◽  
Valeria N. Debarbora ◽  
Alicia P. Benitez Ibalo ◽  
Elena B. Oscherov ◽  
Analía G. Autino ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Analysis ◽  
Genetic Similarity ◽  
Taxonomic Status ◽  
Distribution Range ◽  
Santa Fe ◽  
Morphological Differences ◽  
Molossus Molossus ◽  
San Martín ◽  
Northeastern Argentina

In this study two species of soft ticks belonging to the genus Ornithodoros were recorded in three areas in the province of Corrientes, Argentina. Four larvae were identified as Ornithodoros hasei (Schulze, 1935) on Molossus molossus (Molossidae) in Paraje Tres Cerros (Department of San Martín), while 56 larvae were identified as Ornithodoros sp. cf. O. mimon Kohls, Clifford & Jones, 1969 on Eptesicus furinalis and Myotis levis (Vespertilionidae) in Paraje Galarza (Department of Santo Tomé) and Colonia Carlos Pellegrini (Department of San Martín). These last two locations are found within the Esteros del Iberá eco-region.  The known distribution range of O. hasei and O. cf. O. mimon is expanded to include the province of Corrientes. Two new ectoparasite-host associations were recorded for Argentina between O. hasei on M. molossus and O. cf. O. mimon on M. levis. The morphological differences together with the results of the phylogenetic analysis show that O. hasei presents genetic similarity with specimens from Brazil, and in Argentina, with ticks from Santa Fe. Instead, Ornithodoros sp. cf. O. mimon recorded in Corrientes and Uruguay belong to a different taxon than the O. mimon recorded in Brazil and Santa Fe, Argentina. Based on this, O. mimon should be considered a complex of species in which the specimens from Corrientes are provisionally considered as Ornithodoros sp. cf. O. mimon until their taxonomic status can be determined.

Molecular and morphological identification of  pistachio armored scale insects (Hemiptera: Diaspididae), with description of a new species 

Zootaxa ◽  
2016 ◽  
Vol 4200 (4) ◽  
pp. 523 ◽  
Author(s):  
FATEMEH HOSSEININAVEH ◽  
JAMASB NOZARI ◽  
MEHMET BORA KAYDAN ◽  
VAHID HOSSEININAVEH
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
Phylogenetic Trees ◽  
Parenchyma Cell ◽  
Scale Insects ◽  
Morphological Identification ◽  
New Taxon ◽  
Molecular Features ◽  
Morphological Differences ◽  
A New Species

Members of the family Diaspididae (Hemiptera: Coccomorpha) can be devastating pests that suck parenchyma cell contents from crops and cause severe damage to pistachio trees (Pistacia vera L.). The current research collected and characterized diaspidid species from pistachio orchards in Kerman province, Iran, according to their morphological and molecular features. Lepidosaphes pistaciae Archangelskaya, Suturaspis davatchi (Balachowsky & Kaussari) and Melanaspis inopinata (Leonardi) are redescribed and a new species, Melanaspis pistaciae Hosseininaveh & Kaydan sp. n., is described. Phylogenetic trees based on molecular analysis of COI and 28S rDNA fragments placed all the species in separated clades and confirmed M. pistaciae as a new taxon which is concluded by morphological differences. Molecular analysis suggests non-monophyly of the populations of each species. Melanaspis pistaciae sp. n. has spread to most cultivated pistachio areas in Iran and has probably been misidentified as M. inopinata in the past. Further investigation of the biology of this species may lead to development of more effective approaches for controlling this pest. 

A monograph of the genus Placomaronea (Ascomycota, Candelariales)

2009 ◽  
Vol 41 (5) ◽  
pp. 513-527 ◽  
Author(s):  
Martin WESTBERG ◽  
Patrik FRÖDÉN ◽  
Mats WEDIN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Its Rdna ◽  
Identification Key ◽  
Tierra Del Fuego ◽  
Monophyletic Group ◽  
African Continent ◽  
Nuclear Its ◽  
Three New Species

AbstractA monograph of the genus Placomaronea is presented; all species described earlier are revised, a total of six species is recognized, and an identification key is presented. In addition to the three previously known species, P. candelarioides, P. lambii and P. mendozae, three new species are described: Placomaronea kaernefeltii is a large rosette-like species known from one locality in northernmost Chile; Placomaronea fuegiana is a bullate, areolate species described from Tierra del Fuego, Argentina; Placomaronea minima is a small, areolate to minutely lobate species described from Chile and Argentina, and is the first species of Placomaronea to be reported from the African continent. In a phylogenetic analysis of nuclear ITS rDNA, Placomaronea is shown to form a monophyletic group within the Candelariales.

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