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... Pittosporopsis Craib, previously considered a member of the Icacinaceae sensu lato (s.l.), was transferred recently to the expanded Metteniusaceae, a family of 11 genera that needs morphological reevaluation to assess possible synapomorphies given its new circumscription. We investigated the anther and ovule developmental characters of Pittosporopsis and compared them with those of other members o ...
Casearia; Eocene epoch; Guarea; Lunania; Neotropics; Oligocene epoch; Ryania; biogeography; data collection; dioecy; flora; fossils; geographical distribution; monophyly; synapomorphy; Caribbean; Central America; South America
Abstract:
... Casearia (Salicaceae) is a pantropical genus of circa 200 species, around half of which dwell in the Neotropics. Despite the availability of phylogenetic studies that suggest that Casearia sensu Sleumer is not monophyletic, a strong phylogenetic framework was still lacking for this genus. We tested the monophyly of Casearia and examined the relationships of its species to other taxa of the tribe S ...
Rhinocricidae; data collection; monophyly; new species; redescriptions; synapomorphy; taxonomic keys; taxonomic revisions; Brazil
Abstract:
... This paper offers the first cladistic analysis of the poorly known millipede genus Poecilocricus Schubart, 1962, from Brazil. The data set was composed of 18 taxa and 40 morphological characters. We performed a parsimony analysis by exhaustive search (ie; implicit enumeration) under equal weights (EW) in TNT 1.5. One most parsimonious tree with 78 steps (CI = 0.57; RI = 0.79) recovered the monophy ...
... The ant Tapinoma ibericum Santschi, 1925 is native to the Iberian Peninsula. This species, as well as other species from the Tapinoma nigerrimum complex, could form supercolonies that make these species potentially invasive and could give rise to pests. Recently a mature colony from this species has been found in the Isle of Wight (United Kingdom). Mitogenomes have been used to study the taxonomy, ...
... PREMISE: Two distinct types of fossil infructescences from the early Eocene Laguna del Hunco flora, Chubut Province, Patagonia, Argentina, preserve features of the family Cunoniaceae. The goal of the study was to assess their affinities within Cunoniaceae and to interpret their evolutionary and biogeographical significance. METHODS: Specimens were collected from the Tufolitas Laguna del Hunco, Hui ...
... Molecular phylogenies support the monophyly of Desmodilliscus braueri and Pachyuromys duprasi as a clade basally split from all other gerbillines. While this monophyly supports their placement in a single tribe (Desmodilliscini), no morphological synapomorphies exist among desmodilliscines. This study compares the scale-independent cranial shapes of these two species using geometric morphometrics ...
Cretaceous period; Histeridae; amber; new species; synapomorphy
Abstract:
... For the first time, an extant histerid genus Anapleus Horn, 1873 is described from a specimen found in mid-Cretaceous Kachin amber. Anapleus kachinensis sp. nov. Although the genus Anapleus has not been precisely defined by synapomorphies, the new species shares numerous features with extant species while differing in comparatively few external characteristics. Anapleus kachinensis represents the ...
... The hydrozoan family Cladocorynidae inhabits tropical to temperate waters and comprises the two genera Pteroclava and Cladocoryne. Pteroclava lives in association with some octocorals and hydrozoans, whereas Cladocoryne is more generalist in terms of substrate choice. This work provides a thorough morpho‐molecular reassessment of the Cladocorynidae by presenting the first well‐supported phylogeny ...
... The pollination process and breeding system of Pachygenium bonariense and Pachygenium pteryganthum were documented for native populations from Rio Grande do Sul, Brazil. The flowers secrete nectar (on average with 65% to 67% of the concentration of total sugars), which is concealed into an incurved spur. Both species are pollinated by native, large Apidae bees, and the pollinaria adhere under the ...
... In contrast to highly conserved mitogenomic architecture in most metazoan lineages, which indicates that rearrangement events are generally strongly selected against, a limited number of often unrelated lineages exhibit highly elevated architectural evolution rates. The underlying reasons for this discontinuity in the mitogenomic evolution remain unknown. Previously we sequenced the mitochondrial ...
Polygonaceae; color; exocarp; new species; plant taxonomy; seed germination; synapomorphy; Central Asia; Eurasia
Abstract:
... Exocarp anatomy of 30 species of Atraphaxis has been studied to shed light on possible diagnostic and phylogenetic significance of carpological characters. The diversity of the exocarp structure observed in Atraphaxis was comparable to that in the entire tribe Polygoneae. The size of the exocarp cells, the size and shape of the lumen and its branching were the most variable. The radial size of the ...
... Although the lophophore is regarded as the main synapomorphy of all lophophorates, the evolution of the lophophore in certain groups of lophophorates remains unclear. To date, the innervation of the lophophore has been studied with modern methods only for three brachiopod species belonging to two subphyla: Linguliformea and Rhynchonelliformea. In the third subphylum, the Craniiformea, there are da ...
... Knowledge on the family Dorvilleidae Chamberlin, 1919 is still limited, mainly due to the scarcity of studies and the rarity of many genera and species in samples collected from shallow waters to great depths. This work presents a two folds aim: i) report the first record of Eliberidens from the Southwestern Atlantic Ocean, with Eliberidens forceps Wolf, 1986 and Eliberidens hartmannschroederaeHil ...
... BACKGROUND: Mitochondrial genome rearrangements have been used for defining evolutionary relationships, but there have been incidences of convergences at different taxonomic levels. To gain new insights into whitefly mitogenome evolution, gene arrangement and phylogeny, we sequenced the complete mitogenome of Aleurodicus rugioperculatus (Aleyrodidae: Aleurodicinae) and conducted a comparative anal ...
... Termite gut comprises a long tube divided into several compartments. The well-developed hindgut includes five distinct portions, in which microbial communities are harbored, being responsible for different physiological and digestive processes. An enlarged compartment of the hindgut, the paunch, comprises a sac–like structure whose morphological features differ among termite taxa. The Neotropical ...
... Free-living flatworms of the genus Macrostomum are small and transparent animals, representing attractive study organisms for a broad range of topics in evolutionary, developmental, and molecular biology. The genus includes the model organism M. lignano for which extensive molecular resources are available, and recently there is a growing interest in extending work to additional species in the gen ...
Albizia; Bayesian theory; Caesalpinioideae; Cathormion; Falcataria; Leucochloron; Samanea; center of diversity; fruit morphology; legumes; monophyly; pinnate leaves; statistical analysis; synapomorphy; Amazonia; Argentina; Mexico
Abstract:
... As currently circumscribed, the legume genus Enterolobium comprises 11 species in two sections: E. sect. Enterolobium and E. sect. Robrichia, with an overall distribution from Mexico to Argentina and a centre of diversity in Amazonia. In the absence of the characteristic indehiscent fruits, Enterolobium is difficult to distinguish from other genera in the ingoid clade, including Albizia sensu lato ...
... The Clupeiformes, including among others herrings, anchovies, shads and menhadens are ecologically and commercially important, yet their phylogenetic relationships are still controversial. Previous classification of Clupeiformes were based on morphological characters or lack of synapomorphic characters. More recent studies based on molecular data as well as new morphological evidence are keeping c ...
... Cosmetocleithrum Kritsky, Thatcher & Boeger, 1986 (Dactylogyridae) represents one of the most species-rich groups (22 species currently recognized as valid) of all dactylogyrid parasites infecting Neotropical catfishes. Species of Cosmetocleithrum exhibit a remarkable affinity towards catfishes of the Doradidae and the Auchenipteridae. However, phylogenetic relationships between members of this ge ...
... Recent work on Neotropical jumping spiders continues to reveal the morphological complexity, phylogenetic relationships, and high taxonomic richness of groups that have not been reviewed in years. Here, we focus on clarify the limits of the genus Cobanus F. O. Pickard-Cambridge, 1900, and transferred some species misplaced in Sidusa peckham & peckham, 1895 to Cobanus. We use an integrative approac ...
Histeridae; cacti and succulents; dimorphism; new genus; new species; synapomorphy; Mexico
Abstract:
... We describe an exosternine histerid, Vaquerister cantador Caterino and Tishechkin, new genus and new species, from two localities in the arid parts of northwestern Mexico. The males of this species exhibit remarkable secondary sexual modifications, including deeply excavated mesotibiae and trichome-like structures on the prosternum. Its phylogenetic position within Exosternini is unclear, and it s ...
... Long non-coding regions (NCRs) and gene rearrangements are commonly seen in mitochondrial genomes of Mantodea and are primarily focused on three regions: CR-I-Q-M-ND2, COX2-K-D-ATP8, and ND3-A-R-N-S-E-F-ND5. In this study, eight complete and one nearly complete mitochondrial genomes of praying mantises were acquired for the purpose of discussing mitochondrial gene rearrangements and phylogenetic r ...
Bletilla; monophyly; new genus; pollinia (pollen); synapomorphy
Abstract:
... Delimitation of the tribe Arethuseae has varied considerably since it was first defined. The relationships within Arethuseae, particularly within the subtribe Arethusinae, remain poorly elucidated. In this study, we reconstructed the phylogeny of Arethuseae, using six plastid markers (matK, ycf1, rbcL rpoc1, rpl32-trnL and trnL-F) from 83 taxa. The ancestral state reconstruction of 11 selected mor ...
... Dufouriini are a worldwide distributed tachinid tribe comprised of 51 species in 13 genera, made up of parasitoids of adult Coleoptera. The systematic positioning of Dufouriini has been controversial. Currently, it is placed within Dexiinae, but was previously placed in Phasiinae and Voriinae, and has even had the status of subfamily. Delimitation and composition of Dufouriini has also been debate ...
Pilosocereus; chloroplasts; monophyly; research; synapomorphy; taxonomic keys; Central America; Mexico
Abstract:
... Pilosocereus is one of the Cactaceae family’s most relevant genera in terms of the number of species and its wide geographical range in the Americas. Within Pilosocereus, five informal taxonomic groups have been recognized, one of which is P. leucocephalus group s.s., whose phylogenetic relationships remain unresolved. Therefore, our objectives are to recognize the circumscriptions of the species ...
... Among amniotes, turtles are the only clade that lay aragonitic eggs. Because aragonite is a metastable mineral, unequivocal preservation of aragonite in fossil turtle eggs has only been reported from Pliocene deposits. Here, we report in situ preservation of aragonite in a turtle egg from the Judith River Formation (Campanian) of Montana, USA. We utilized electron backscatter diffraction (EBSD) an ...
Colletotrichum; DNA; analytical methods; data collection; databases; fungi; internal transcribed spacers; international trade; plant protection; species diversity; species identification; synapomorphy
Abstract:
... Publicly available and validated DNA reference sequences useful for phylogeny estimation and identification of fungal pathogens are an increasingly important resource in the efforts of plant protection organizations to facilitate safe international trade of agricultural commodities. Colletotrichum species are among the most frequently encountered and regulated plant pathogens at U.S. ports-of-entr ...
... Nearly all ferns support their stems and leaf axes with a sheath of hypodermal sclerenchyma called sterome. The sheath consists of compact fibers with few or no intercellular spaces. Although solving the need for mechanical support, the sterome presents a problem: it blocks air that has diffused through the stomata from diffusing farther into the plant where it is needed for photosynthesis and res ...
Filipe Augusto Cavalcanti do Nascimento; Bruno Vilela; Marcos Jorge Matias Dubeux; Jéssica Yara Araujo Galdino; José Vieira de Araújo-Neto; Fernando Leal; Rafael de Sá
Microhylidae; Neotropics; environment; fauna; forests; frogs; natural history; reproduction; sexual dimorphism; synapomorphy; wet season
Abstract:
... Chiasmocleis is the most species-rich New World microhylid genus. Among Atlantic Forest species in the genus, C. alagoana has the northernmost distribution. The species was described two decades ago; however, little is known about its natural history. Herein, we provide information on its reproductive biology, advertisement call, and external morphology based on specimens from the type locality an ...
Armando J. Cruz‐Laufer; Antoine Pariselle; Michiel W. P. Jorissen; Fidel Muterezi Bukinga; Anwar Al Assadi; Maarten Van Steenberge; Stephan Koblmüller; Christian Sturmbauer; Karen Smeets; Tine Huyse; Tom Artois; Maarten P. M. Vanhove
... A substantial portion of biodiversity has evolved through adaptive radiation. However, the effects of explosive speciation on species interactions remain poorly understood. Metazoan parasites infecting radiating host lineages could improve our knowledge because of their intimate host relationships. Yet limited molecular, phenotypic and ecological data discourage multivariate analyses of evolutiona ...
... Fridericia is a large genus of neotropical lianas with a complicated taxonomy. The genus is monophyletic and well supported by molecular characters, but lacks distinctive morphological synapomorphies, complicating its recognition. Species of Fridericia are distributed among six well-supported clades. As part of a series of taxonomic revisions of each clade of Fridericia, we present a taxonomic rev ...
Bayesian theory; Cypripedium; DNA; Paphiopedilum; Phragmipedium; Selenipedium; computer simulation; data collection; monophyly; peduncle; perianth; synapomorphy; trade; India
Abstract:
... Paphiopedilum Pfitzer is one of the largest horticulturally utilized genera of slipper orchids. Similar characters of slipper orchids within Paphiopedilum may camouflage identity and mislead a nonprofessional to species substitution. All the species of Paphiopedilum are enlisted in CITES Appendix I and barred for unethical trading from wild sources. An in-silico study on the trait-linked phylogene ...
... The antennae are the main olfactory organ of flies, playing key roles in their survival and the success of all life stages. Antennal ultrastructural morphology has been well described in the representative species of most calyptrate families, yet only a few studies have focused on Sarcophagidae species, those with ecological and medical relevance. Antennal morphology and the types, shapes, distrib ...
... Despite the importance of osteological characters in the diagnoses of the hemiphractid genera Fritziana and Flectonotus mentioned in the literature, published information on the osteology of both genera has been limited to the shape description of a few skull bones, such as nasals, quadratojugals, and neopalatines. Herein, detailed cranial osteological descriptions of six species of Fritziana and ...
... In this study, we reported the first complete mitogenome of Bdelloidea, Spinibdella lignicola, and combined with other 26 trombidiform mitogenomes, we conducted gene order (GO) comparative analyses of trombidiform mites. The mitogenome of S. lignicola, having a full set of 37 coding genes, exhibits a novel gene cluster of “trnA-trnQ-trnS1-trnR” among trombidiform mites. Phylogenetic reconstruction ...
... We present the most comprehensive phylogeny of a globally distributed deep-sea group of gastropods published to date including over 80% of the recognized diversity of the family Scaphandridae. The definition and taxonomic composition of the Scaphandridae has been hampered by the lack of a sound phylogenetic framework and definition of synapomorphic traits. We used a combination of molecular phylog ...
... Choristoderes are extinct semi-aquatic to aquatic diapsid reptiles, occupying a similar niche as modern crocodilians from the Jurassic to the Miocene. Distinct from other diapsids, choristoderes have a neomorphic ossification between the braincase, squamosal, and quadrate. This neomorphic bone is described as thin and plate-like in long-snouted choristoderes (Neochoristodera), yet little is known ...
Trichomycteridae; basins; biodiversity; color; fins; fish; freshwater; morphometry; new species; redescriptions; synapomorphy; Brazil
Abstract:
... This work aimed to describe Cambeva cauim, sp. nov., endemic to the Rio Iguaçu basin, Brazil and redescribe Cambeva stawiarski using external and internal morphological data through the revision of specimens deposited in fish collections, including the type material. In this process, we have also added comments on the possible type locality of C. stawiarski. C. cauim, sp. nov. and C. stawiarski ar ...
... Colleters are secretory structures involved in the protection of young and developing plant organs. Although the presence of colleters in Gentianales is described as a synapomorphy, studies on the morphofunctionality of colleters and the mechanisms underlying the synthesis and release of colleter secretion in Gentianaceae are scarce. Here, we described the ontogeny and the morphological and functi ...
... The Sapindales are a large order comprised of trees, shrubs, lianas and rarely herbs. This lineage is mostly pantropical with important temperate lineages, inclusing some of the most diverse, highly prized woods in the world, such as mahogany (Swietenia). In this study, we characterized the wood anatomy across eight of the nine Sapindales families, and leverage phylogenetic comparative methods to ...
... AbstractOf the 12 specimens of Calathus-like sphodrine beetles presently known from Baltic and Rovno amber deposits, 11 specimens were investigated using light microscopy, micro-CT scanning, and 3D imaging techniques. For the first time, many significant diagnostic characters of the external morphology and male and female genitalia of Eocene Sphodrini were studied in detail. Based on these data, ...
Harpacticoida; estuaries; females; new genus; new species; new subfamily; sediments; synapomorphy; Mexico
Abstract:
... AbstractA new species of Cletocamptus closely related to C. helobius was found in sediment samples taken from a polluted estuarine system in north-western Mexico. The genus Cletocamptus was relegated to species incertae sedis in 1986, and this finding prompted us to evaluate the current taxonomic position of the genus within the Canthocamptidae. The latter has been subdivided in several, seemingl ...
Bayesian theory; DNA; Neotropics; Nymphalidae; butterflies; confidence interval; genetic variation; invertebrates; larvae; males; new species; nucleotide sequences; sympatry; synapomorphy; Andes region
Abstract:
... The field of systematics and our understanding of phylogenetic relationships have been invigorated by the use of molecular data, but analyses based on DNA sequence data are not always corroborated by diagnostic morphological characters. In particular, several taxonomic changes in butterflies (Papilionoidea) have been made solely on the basis of molecular data without identifying morphological syna ...
... Balticeler kerneggeri gen. nov., sp. nov., is described based on six fossil specimens preserved in Eocene Baltic amber and imaged using light microscopy and X-ray micro-computed tomography. Based on certain characters observed in the fossil species it is considered a “middle grade” Carabidae, outside of the large family Harpalinae (as it possesses a scrobal seta, the lack of which is a synapomorph ...
Anthracoideaceae; Cintractia; Cyperus; biological control agents; invasive species; new species; spikelets; spores; synapomorphy; Australia
Abstract:
... Cintractia (Anthracoideaceae, Ustilaginomycotina) is a widespread genus of smut fungi that parasitizes species of Cyperaceae. Specimens of Cintractia spp. on species of Cyperus s. lat. were examined to resolve their taxonomy, including a species on Cyperus aromaticus, which is an invasive weed in Australia. A phylogenetic species concept was used to show that Cintractia limitata s. lat. contains t ...
... Molecularly, the family Caryophylliidae is polyphyletic and different sets of genetic data converge towards a consensus that a taxonomic review of this family is necessary. Overall, the order of genes in the mitochondrial genome (mitogenome) together with DNA sequences have been used to successfully untangle evolutionary relationships in several groups of organisms. Published mitogenomes of two ca ...
... Chacoan peccary (Catagonus wagneri, 2n=20) is the most endangered of three extant species of Tayassuidae. Its karyotype has been studied only by differential chromosome staining methods so far. To establish a comparative cytogenetic map of the peccary, we used cross-species hybridization with porcine (Sus scrofa, 2n=38) painting probes. Painting revealed 30 evolutionary conserved autosomal segment ...
... Cytinaceae are root endoparasitic plants with only three genera. Their biology is largely unknown, and most knowledge of the family is based on the Old World genus Cytinus. Here, we studied all three species of the New World Bdallophytum from Mexico. We describe their morphoanatomy, floral development, and embryology, highlighting the unique traits of Bdallophytum compared with two other genera of ...
... Animal mitochondrial (mt) genomes are typically double-strand circular DNA molecules, but diverse structural variations have been widely found in multiple groups. In parasitic lice (Phthiraptera), the structure of mt genomes varies remarkably across all five suborders. In this study, we reported the complete mt genome of a chicken body louse, Menacanthus cornutus, which has a typical single circul ...
DNA barcoding; Sanguisorba officinalis; chloroplast genome; chloroplasts; disease diagnosis; exine; genetic distance; genetic variation; genomics; hypanthium; microstructure; palynology; pollen; species identification; synapomorphy; Korean Peninsula
Abstract:
... Sanguisorba, commonly known as burnet, is a genus in the family Rosaceae native to the temperate regions of the Northern hemisphere. Five of its thirty species are distributed in Korea: Sanguisorba officinalis, S. stipulata, S. hakusanensis, S. longifolia, and S. tenuifolia. S. officinalis has been designated as a medicinal remedy in the Chinese and Korean Herbal Pharmacopeias. Despite being a val ...