scholarly journals Macro- and microevolutionary perspectives on Seynesiella juniperi, a fungus in the Venturiales (Dothideomycetes, Ascomycota)

2021 ◽  
Vol 45 ◽  
pp. e73217
Author(s):  
Isaac Garrido Benavent
Keyword(s):  
Type Species ◽  
Distinct Species ◽  
Species Boundaries ◽  
Phylogenetic Study ◽  
Cryptic Speciation ◽  
Plant Association ◽  
High Genetic Diversity ◽  
Biogeographic History ◽  
The Family ◽  
History Of

The present work represents the first comprehensive phylogenetic study of the dothideomycete genus Seynesiella. The genus belongs into the family Cylindrosympodiaceae within the order Venturiales, based on a phylogeny reconstructed with five loci. The high genetic diversity found within the type species, S. juniperi, points towards cryptic speciation, with up to five distinct species that might be associated to different Juniperus hosts. Combining phylogenetics and multi-locus delimitation analyses, together with more detailed measurements of ascospores, will be fundamental for a better understanding of species boundaries and the biogeographic history of the delimited species, as well as for revealing more specific fungal-plant association patterns.

A revised phylogeny of the New Caledonian endemic genus Troglosiro (Opiliones : Cyphophthalmi : Troglosironidae) with the description of four new species

2021 ◽  
Author(s):  
Gonzalo Giribet ◽  
Caitlin M. Baker ◽  
Prashant P. Sharma
Keyword(s):  
New Species ◽  
Species Delimitation ◽  
Short Range ◽  
New Caledonia ◽  
28S Rrna ◽  
Direct Optimization ◽  
Biogeographic History ◽  
Phylogenetic Methods ◽  
The Family ◽  
History Of

The Cyphophthalmi genus Troglosiro (the only genus of the family Troglosironidae) is endemic to New Caledonia, representing one of the oldest lineages of this emerged part of Zealandia. Its species are short-range endemics, many known from single localities. Here we examined the phylogenetic relationships of Troglosironidae using standard Sanger-sequenced markers (nuclear 18S rRNA, 28S rRNA, and mitochondrial 16S rRNA and cytochrome c oxidase subunit I) and a combination of phylogenetic methods, including parsimony under Direct Optimization and maximum likelihood with static homology. We also applied a diversity of species delimitation methods, including distance-based, topology-based and unsupervised machine learning to evaluate previous species designations. Finally, we used a combination of genetic and morphological information to describe four new species – T. dogny sp. nov., T. pin sp. nov., T. pseudojuberthiei sp. nov. and T. sharmai sp. nov. – and discuss them in the broader context of the phylogeny and biogeographic history of the family. A key to the species of Troglosiro is also provided. urn:lsid:zoobank.org:pub:93541314-8309-468C-BB77-B34C3A81137E

Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus

Zootaxa ◽  
2009 ◽  
Vol 2243 (1) ◽  
pp. 1-39 ◽  
Author(s):  
EVERT E. LINDQUIST ◽  
MARÍA L. MORAZA
Keyword(s):  
New Species ◽  
Type Species ◽  
Carabid Beetles ◽  
New Combination ◽  
Adult Females ◽  
The Family ◽  
Two New Species ◽  
Family Level ◽  
History Of

The genus Anystipalpus Berlese, 1911, of uncertain prior placement in the superfamilies Ascoidea or Dermanyssoidea, is redescribed, based on reexamination of type and other material of the type-species, A. percicola Berlese, and of material representing Anystipalpus livshitsi (Eidelberg) new combination and two new species, A. labiduricola n. sp. and A. kazemii n. sp. Anystipalpus nataliae (Eidelberg) new combination and Anystipalpus ukrainicus (Sklyar) new combination are determined to be junior synonyms of A. percicola Berlese and A. livshitsi (Eidelberg), respectively, new synonymies. The genus is known thus far only from adult females phoretic under the elytra of carabid beetles and the tegmina of labidurid earwigs in Eurasia. The relationships between it and the closely related Antennoseius Berlese, 1916 and Vitzthumia Thor, 1930, are reviewed, and the options for the family level placement of these genera are reconsidered. Attention is given to some gnathosomatic attributes that are commonly overlooked in description of species of these closely related genera. Phoresy and the role of adult female morphs in the life history of these mites, as well as the extraordinary phoretic association of one species with earwigs are discussed.

Taphonomic bias and the evolutionary history of the family Cidaridae (Echinodermata: Echinoidea)

Paleobiology ◽  
1992 ◽  
Vol 18 (1) ◽  
pp. 50-79 ◽  
Author(s):  
Benjamin J. Greenstein
Keyword(s):  
Type Species ◽  
Evolutionary History ◽  
Middle Triassic ◽  
Upper Jurassic ◽  
Late Triassic ◽  
Type Specimens ◽  
Fossil Material ◽  
Group I ◽  
The Family ◽  
History Of

The class Echinoidea apparently originated during the Ordovician Period and diversified slowly through the Paleozoic Era. The clade then mushroomed in diversity beginning in Late Triassic time and continued expanding into the present. Although this evolutionary history is generally accepted, the taphonomic overprint affecting it has not been explored. To gain a more accurate perception of the evolutionary history of the group, I have compared the diversity history of the family Cidaridae (Echinodermata: Echinoidea) with the preservational style of fossil type species using literature-derived data. The Cidaridae apparently originated in Middle Triassic time and diversified slowly through the Neocomian (Early Cretaceous). Diversity was maintained through the remainder of the Cretaceous and Tertiary Periods, reflecting the diversity history of the subclass. Characterization of the preservational style of type fossil material for the family revealed the following breakdown of preservational states: 60% of species were described on the basis of disarticulated skeletal material, primarily spines; 20% based on intact coronas denuded of spines, apical system, Aristotle's lantern and peristomial plates; 10% based on large coronal fragments; and 10% based on other skeletal elements. This distribution may represent the effect of a disarticulation threshold on the condition of echinoid carcasses before final burial and suggests that preservation of intact specimens may be very unlikely. For cidaroids, previous work has suggested that this threshold is likely to be reached after 7 days of decay.Comparison of the diversity history of the Cidaridae with the preservation data reveals that characteristic patterns of taphonomic overprint have affected the group since its origination in Middle Triassic time, and the nature of that overprint has changed over time: the early diversity history of the group is characterized by occurrences of fragmented fossil material, with spines predominant; further radiation of the group in mid-Jurassic time coincided with an increase in modes of preservation, ranging between exceptionally well-preserved material and disarticulated skeletal elements. Finally, type material is more rarely described from younger stratigraphic intervals (Miocene–Pleistocene) and consists predominantly of disarticulated skeletal elements and coronal fragments larger than an interambulacrum in size. Intact, denuded coronas are noticeably lacking.The number of type species of Cidaridae described in each stratigraphic interval has not been consistent during post-Paleozoic time. Middle Triassic, Malm (Upper Jurassic), Senonian (Upper Cretaceous) and Eocene series yielded significantly (α = .05) higher numbers of type specimens per million years, while the Lias (Lower Jurassic), Dogger (Mid-Jurassic), Lower Cretaceous and Paleocene yielded significantly (α = .05) lower numbers of type specimens per million years. This may be the result of a combination of taxonomic, sampling, and geographical biases.

scholarly journals The double odyssey of Madagascan polystome flatworms leads to new insights on the origins of their amphibian hosts

2009 ◽  
Vol 276 (1662) ◽  
pp. 1575-1583 ◽  
Author(s):  
Olivier Verneau ◽  
Louis H Du Preez ◽  
Véronique Laurent ◽  
Liliane Raharivololoniaina ◽  
Frank Glaw ◽  
...  
Keyword(s):  
Molecular Dating ◽  
Phylogenetic Position ◽  
Late Mesozoic ◽  
Biogeographic History ◽  
On This Island ◽  
The Family ◽  
Molecular Phylogenetic ◽  
History Of ◽  
Recent Origin ◽  
High Species Richness

Polystomatid flatworms are parasites of high host specificity, which mainly infect amphibian hosts. Only one polystome species has so far been recorded from Madagascar despite the high species richness and endemicity of amphibians on this island. Out of the 86 screened Malagasy frog species, we recovered polystomes from 25 in the families Ptychadenidae and Mantellidae. Molecular phylogenetic analysis uncovered an unexpected diversity of polystome species belonging to two separate clades: one forming a lineage within the genus Metapolystoma , with one species in Ptychadena and several species in the mantellid host genera Aglyptodactylus and Boophis ; and the second corresponding to an undescribed genus that was found in the species of the subfamily Mantellinae in the family Mantellidae. The phylogenetic position of the undescribed genus along with molecular dating suggests that it may have colonized Madagascar in the Late Mesozoic or Early Cainozoic. By contrast, the more recent origin of Metapolystoma in Madagascar at ca 14–2 Myr ago strongly suggests that the ancestors of Ptychadena mascareniensis colonized Madagascar naturally by overseas dispersal, carrying their Metapolystoma parasites. Our findings provide a striking example of how parasite data can supply novel insights into the biogeographic history of their hosts.

Validity and interpretation of Murcia Koch, Trichoribates Berlese and their type species (Acari: Oribatida: Ceratozetidae)

Zootaxa ◽  
2009 ◽  
Vol 2107 (1) ◽  
pp. 65-68
Author(s):  
GERD WEIGMANN ◽  
ROY A. NORTON
Keyword(s):  
Type Species ◽  
Oribatid Mite ◽  
Mite Species ◽  
Taxonomic Position ◽  
The Past ◽  
The Family ◽  
History Of ◽  
Oribatid Mite Species

In the literature there is much confusion about the identity and taxonomic position of two common oribatid mite species in the family Ceratozetidae: Oribates setosus C.L. Koch, 1839, and Murcia trimaculata C.L. Koch, 1835. Related to these problems, there are contrary opinions about the validity of two ceratozetid genera, Murcia Koch, 1835 and Trichoribates Berlese, 1910, and the identity of their type species. Important conclusions on these issues have been proposed in the past (Jacot 1929; Pérez-Iñigo 1993) but these were not followed in an important recent catalog (Subías 2004). In the following, we summarize and comment on the history of these problems, and argue in the context of the current ICZN rules to preserve nomenclatural stability.

scholarly journals Fossil Genera in Elateridae (Insecta, Coleoptera): A Triassic Origin and Jurassic Diversification

Insects ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 394 ◽  
Author(s):  
Robin Kundrata ◽  
Gabriela Packova ◽  
Johana Hoffmannova
Keyword(s):  
Fossil Record ◽  
Type Species ◽  
Evolutionary History ◽  
Incertae Sedis ◽  
Number Of Species ◽  
The Family ◽  
History Of ◽  
Age Range ◽  
Insect Fossils

Insect fossils bear important information about the evolutionary history of the group. The fossil record of Elateridae, a large cosmopolitan beetle family, has been greatly understudied and the available data are often replete with ambiguity and uncertainty. The research of Elateridae evolution cannot be done without solid genus-group name concepts. In this study we provide an updated comprehensive summary of the fossil genera in Elateridae, including their systematic placement and information on the type species, gender, number of species, age range, and relevant bibliography. We list seven valid fossil genera in Agrypninae, one in Cardiophorinae, two in Dendrometrinae, five in Elaterinae, two in Negastriinae, one in Omalisinae, one in Pityobiinae, and 36 in Protagrypninae. Additional 19 genera are tentatively classified as Elateridae incertae sedis, and their placements are discussed. Further, we move genera Babuskaya Martins-Neto & Gallego, 2009, Cardiosyne Martins-Neto & Gallego, 2006, Fengningia Hong, 1984 and Gemelina Martins-Neto & Gallego, 2006 from Elateridae to Coleoptera incertae sedis. We also discuss the genera previously placed in Elateridae, which are currently not included in the family. The data on the fossil generic diversity suggest that Elateridae originated in the Triassic and rapidly diversified and became comparatively abundant through the Jurassic. We call for further research on the fossil Elateridae from various deposits in order to increase our knowledge on the origin, evolution, and palaeodiversity of the group.

scholarly journals A molecular and morphological investigation of species boundaries and phylogenetic relationships in Australian free-tailed bats Mormopterus (Chiroptera : Molossidae)

2014 ◽  
Vol 62 (2) ◽  
pp. 109 ◽  
Author(s):  
T. B. Reardon ◽  
N. L. McKenzie ◽  
S. J. B. Cooper ◽  
B. Appleton ◽  
S. Carthew ◽  
...  
Keyword(s):  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Phylogeographic Structure ◽  
Species Boundaries ◽  
Base Pairs ◽  
Nadh Dehydrogenase Subunit 2 ◽  
The Family ◽  
Taxonomic Uncertainty ◽  
History Of ◽  
Phylogenetic Affinities

The taxonomic uncertainty surrounding several prominent genera of Australian microbat has been a long-standing impediment to research and conservation efforts on these groups. The free-tail bat genus Mormopterus is perhaps the most significant example, with a long history of acknowledged species-level confusion. This study uses a combined molecular and morphological approach to conduct a comprehensive assessment of species and subgeneric boundaries, between-species phylogenetic affinities and within-species phylogeographic structure in Australian members of Mormopterus. Phylogenetic analyses based on 759 base pairs of the NADH Dehydrogenase subunit 2 mitochondrial gene were concordant with species boundaries delineated using an expanded allozyme dataset and by phallic morphology, and also revealed strong phylogeographic structure within two species. The levels of divergence evident in the molecular and morphological analyses led us to recognise three subgenera within Australia: Micronomus, Setirostris subgen. nov. and Ozimops subgen. nov. Within Ozimops we recognise seven Australian species, three of which are new, and none are conspecific with Indo-Papuan species. The family Molossidae now comprises eleven species across three subgenera in Australia, making it the continent’s second most speciose family of bats.

The fossil mite family Archaeorchestidae (Acari, Oribatida) I: redescription of Strieremaeus illibatus and synonymy of Strieremaeus with Archaeorchestes

Zootaxa ◽  
2011 ◽  
Vol 2993 (1) ◽  
pp. 34 ◽  
Author(s):  
EKATERINA A. SIDORCHUK ◽  
ROY A. NORTON
Keyword(s):  
Type Species ◽  
Oribatid Mite ◽  
Distinct Species ◽  
Baltic Amber ◽  
Type Specimens ◽  
The Family ◽  
Species Inquirenda ◽  
Arboreal Habitat ◽  
New Diagnosis ◽  
First Time

Strieremaeus is one of several oribatid mite genera proposed by Max Sellnick based on adult specimens preserved in Eocene Baltic amber. The original specimens of its type-species—S. illibatus Sellnick, 1918—were lost and the genus has received no further empirical study. For many years Strieremaeus was included in the family Eremaeidae, but recently this placement was questioned. Herein we redescribe S. illibatus based on the study of 31 non-type adult specimens from both Baltic and Rovno ambers. Among these are four Baltic specimens identified by Sellnick and currently deposited in the Kaliningrad Museum of Amber (KMA), which we designate as neotype (KMA 197-36) and paraneotypes (KMA 197-34, 197-35, and 197-37). Six immature specimens were associated with this species, of which three—one deutonymph, two tritonymphs—could be studied in detail and their characters are included in the redescription. The type specimens of a second species of Strieremaeus proposed by Sellnick—S. cordiformatus Sellnick, 1918—are also lost and two non-type specimens in the KMA seem to have been misidentified by Sellnick; therefore, we treat S. cordiformatus as a species inquirenda. A new diagnosis of Strieremaeus is presented, and the Cretaceous fossil genus Archaeorchestes is considered a junior subjective synonym, based on examination of the holotype of the type-species, A. minguezae Arillo & Subías, 2000. As a consequence, Strieremaeus is currently the sole genus in Archaeorchestidae. Strieremaeus minguezae (n. comb.) is only tentatively maintained as a distinct species, as no certain distinguishing traits could be found. Two families are reported from the fossil record for the first time: Zetomotrichidae from Baltic amber and Zetorchestidae from Rovno amber. In ancillary discussion we note how the specialized tarsal structure of S. illibatus is consistent with its likely arboreal habitat. We also discuss preservation properties and artifacts, note the dimensional discrepancy between cuticular remnants of the mite and its larger imprint in amber, and strongly recommend measuring more than the cuticular remnants themselves. Further, we provide information on different methods to observe amber inclusions, and for the first time report birefringence of fossil cuticular remnants in thin, airless preparations.

A revision of the Viscaceae of Australia.

Brunonia ◽  
1983 ◽  
Vol 6 (1) ◽  
pp. 25 ◽  
Author(s):  
BA Barlow
Keyword(s):  
New Combinations ◽  
Australian Region ◽  
Biogeographic History ◽  
The Family ◽  
History Of

The Australian Viscaceae comprise 3 genera, Viscum, Notothixos and Korthalsella, and 14 species. A further 2 species of Korthalsella are endemic to Norfolk and Lord Howe Islands respectively. None of the genera and only 7 of the species are endemic to Australia. Three species are described as new, viz. Korthalsella emersa, K. grayi and K. leucothrix. One subspecies is described as new, viz. K. rubra subsp. geijericola. There are 2 new combinations, viz. K. japonica subsp. brassiana (K. brassiana Blakely) and Viscum whitei subsp. flexicaule (V. flexicaule Barlow). The biogeographic history of the family in the Australian region is briefly discussed.

Platypodidae under scrutiny

2000 ◽  
Vol 14 (6) ◽  
pp. 771 ◽  
Author(s):  
Guillermo Kuschel ◽  
Richard A. B. Leschen ◽  
Elwood C. Zimmerman
Keyword(s):  
Type Species ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
Single Step ◽  
Phylogenetic Study ◽  
The Family ◽  
The Status

The historical status of the family Platypodidae is reviewed and the family is revised. Results of a cladistic analysis based on 35 terminal taxa and 80 adult morphological characters show that the current placement of Platypodidae makes the subfamily Scolytinae paraphyletic. Moreover, several important genera included in Scolytinae are shown to be members of Cossoninae (i.e. the placement of Protoplatypus Wood and Phylloplatypus Kato in Cossoninae is confirmed). Based on these results, the status of Platypodidae as a family and subfamily is rejected, Scolytinae thereby becoming a monophyletic taxon. Araucarius groups in Scolytinae instead of Cossoninae in the analysis on a single step only, but it is suggested that it be retained in Cossoninae until this subfamily is submitted to a similar phylogenetic study. Three genera and four species of Cossoninae are described as new: Dobionus Kuschel, gen. nov.: type species D. araucarinus Kuschel, sp. nov. (with the inclusion of D. brachyrhinus (Montrouzier)); Coptonus Kuschel, gen. nov.: type species C. fijianus Kuschel, sp. nov. (with the inclusion of C. papuanus Kuschel, sp. nov.) and Dissostomus Kuschel, gen. nov.: type species D. hornabrooki Kuschel, sp. nov.

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