New Biogeographic insight into Bauhinias.l. (Leguminosae): integration from fossil records and molecular analyses

In order to initiate a taxonomical revision of the Dianthus sylvestris group, an inventory of historical herbarium materials from ZA and ZAHO collections was conducted. Herbarium specimens of D. sylvestris group from these two herbaria were digitized and the data from the original herbarium labels were inserted in the Flora Croatica Database. A total of 344 herbarium sheets were digitized and six taxa (D. sylvestris Wulfen in Jacq. ssp. sylvestris, D. sylvestris ssp. tergestinus (Rchb.) Hayek, D. sylvestris ssp. longicaulis (Ten.) Greuter et Burdet, D. sylvestris ssp. nodosus (Tausch) Hayek, D. siculus C. Presl and D. arrosti C. Presl) were registered within studied collections. Inventory of herbarium sheets from ZA and ZAHO historical collections provided a significant insight into historical distributional data of D. sylvestris taxa related to the area of the Balkan Peninsula, which is a prerequisite for accurate taxonomic/ geographic sampling for further morphological and molecular analyses.

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Molecular analyses provide insight into mechanisms underlying sarcopenia and myofibre denervation in old skeletal muscles of mice

The International Journal of Biochemistry & Cell Biology ◽

10.1016/j.biocel.2014.04.025 ◽

2014 ◽

Vol 53 ◽

pp. 174-185 ◽

Cited By ~ 40

Author(s):

Mitchell Barns ◽

Cedric Gondro ◽

Ross L. Tellam ◽

Hannah G. Radley-Crabb ◽

Miranda D. Grounds ◽

...

Keyword(s):

Skeletal Muscles ◽

Molecular Analyses ◽

Insight Into

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Clinical, Molecular, and Epidemiological Analysis of Dengue Cases during a Major Outbreak in the Midwest Region of Minas Gerais, Brazil

Journal of Tropical Medicine ◽

10.1155/2014/276912 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Juliana Cristina Duarte Braga ◽

Leandro César da Silva ◽

Jacqueline Domingues Tibúrcio ◽

Mirna de Abreu e Silva ◽

Lailah Horácio Sales Pereira ◽

...

Keyword(s):

Hospital Admission ◽

Warning Signs ◽

Clinical Samples ◽

Health Ministry ◽

Epidemiological Analysis ◽

Molecular Analyses ◽

Major Outbreak ◽

Midwest Region ◽

The City ◽

Insight Into

This study aims to perform the first molecular and clinical-epidemiological analysis of dengue cases in Divinopolis, MG, Brazil. Data from 4,110 cases of dengue were accessed and 190 clinical samples were collected for molecular analyses. In this study, 2.7% of the men and 3.0% of the women were admitted to hospital. There was no association between gender and hospital admission. The symptoms observed in this study are according to the Health Ministry, but fever was present in 82.2% and not in 100% of cases. The chance of hospital admission was 1.55 higher in patients with any kind of bleeding (334) and 2.4% of individuals without bleeding were also hospitalized due to other warning signs. In the molecular analyses, 23% of the samples were positive for DENV. DENV-2 and DENV-3 were identified in 2010, DENV-3 in 2011, DENV-1 in 2012, and DENV-1 and DENV-4 in 2013. DENV detection was possible in samples with only one day of symptoms. This first report of dengue data in Divinópolis provided more insight into the viral types and effects of disease in the city, confirming the need for caution in assessing cases of suspected dengue and for revision of the criteria proposed by the Health Ministry to classify cases of the disease.

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The semi-aquatic pondweed bugs of a Cretaceous swamp

PeerJ ◽

10.7717/peerj.3760 ◽

2017 ◽

Vol 5 ◽

pp. e3760 ◽

Cited By ~ 1

Author(s):

Alba Sánchez-García ◽

André Nel ◽

Antonio Arillo ◽

Mónica M. Solórzano Kraemer

Keyword(s):

Evolutionary History ◽

Sister Group ◽

Single Female ◽

Promising Alternative ◽

The Family ◽

Phylogenetic Hypotheses ◽

Fossil Records ◽

Aggregative Behaviour ◽

Insight Into ◽

New Discovery

Pondweed bugs (Hemiptera: Mesoveliidae), considered a sister group to all other Gerromorpha, are exceedingly rare as fossils. Therefore, each new discovery of a fossil mesoveliid is of high interest, giving new insight into their early evolutionary history and diversity and enabling the testing of their proposed relationships. Here, we report the discovery of new mesoveliid material from Spanish Lower Cretaceous (Albian) amber, which is the first such find in Spanish amber. To date, fossil records of this family only include one species from French Kimmeridgian as compression fossils, two species in French amber (Albian-Cenomanian boundary), and one in Dominican amber (Miocene). The discovery of two males and one female described and figured asGlaesivelia pulcherrimaSánchez-García & Solórzano Kraemer gen. et sp. n., and a single female described and figured asIberovelia quisquiliaSánchez-García & Nel, gen. et sp. n., reveals novel combinations of traits related to some genera currently in the subfamily Mesoveliinae. Brief comments about challenges facing the study of fossil mesoveliids are provided, showing the necessity for a revision of the existing phylogenetic hypotheses. Some of the specimens were studied using infrared microscopy, a promising alternative to the systematic study of organisms preserved in amber that cannot be clearly visualised. The new taxa significantly expand the fossil record of the family and shed new light on its palaeoecology. The fossils indicate that Mesoveliidae were certainly diverse by the Cretaceous and that numerous tiny cryptic species living in humid terrestrial to marginal aquatic habitats remain to be discovered. Furthermore, the finding of several specimens as syninclusions suggests aggregative behaviour, thereby representing the earliest documented evidence of such ethology.

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100-My history of bornavirus infections hidden in vertebrate genomes

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.2026235118 ◽

2021 ◽

Vol 118 (20) ◽

pp. e2026235118

Author(s):

Junna Kawasaki ◽

Shohei Kojima ◽

Yahiro Mukai ◽

Keizo Tomonaga ◽

Masayuki Horie

Keyword(s):

Phylogenetic Analyses ◽

Migration Route ◽

Messenger Rnas ◽

Molecular Fossil ◽

History Of ◽

Geographic Distributions ◽

Fossil Records ◽

Insight Into ◽

Animal Genomes

Although viruses have threatened our ancestors for millions of years, prehistoric epidemics of viruses are largely unknown. Endogenous bornavirus-like elements (EBLs) are ancient bornavirus sequences derived from the viral messenger RNAs that were reverse transcribed and inserted into animal genomes, most likely by retrotransposons. These elements can be used as molecular fossil records to trace past bornaviral infections. In this study, we systematically identified EBLs in vertebrate genomes and revealed the history of bornavirus infections over nearly 100 My. We confirmed that ancient bornaviral infections have occurred in diverse vertebrate lineages, especially in primate ancestors. Phylogenetic analyses indicated that primate ancestors were infected with various bornaviral lineages during evolution. EBLs in primate genomes formed clades according to their integration ages, suggesting that bornavirus lineages infected with primate ancestors had changed chronologically. However, some bornaviral lineages may have coexisted with primate ancestors and underwent repeated endogenizations for tens of millions of years. Moreover, a bornaviral lineage that coexisted with primate ancestors also endogenized in the genomes of some ancestral bats. The habitats of these bat ancestors have been reported to overlap with the migration route of primate ancestors. These results suggest that long-term virus–host coexistence expanded the geographic distributions of the bornaviral lineage along with primate migration and may have spread their infections to these bat ancestors. Our findings provide insight into the history of bornavirus infections over geological timescales that cannot be deduced from research using extant viruses alone, thus broadening our perspective on virus–host coevolution.

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Molecular characterization of PCN populations from Serbia

Genetika ◽

10.2298/gensr1201189o ◽

2012 ◽

Vol 44 (1) ◽

pp. 189-200

Author(s):

Violeta Oro ◽

Vesna Oro-Radovanovic

Keyword(s):

Molecular Characterization ◽

Globodera Pallida ◽

Its2 Region ◽

Potato Cyst Nematodes ◽

Cyst Nematodes ◽

Molecular Analyses ◽

Morphological Studies ◽

Similarities And Differences ◽

Insight Into

The morphology of potato cyst nematodes (PCN) was until recently almost the only way to identify these quarantine organisms. In the last two decades, molecular analyses contributed to faster and more efficient identification of two Globodera species (Globodera pallida and G. rostochiensis) and allowed insight into the genetic structure of those parts that were practically inaccessible by morphological studies. Molecular characterization was performed in ITS1-5.8S-ITS2 region. The comparison was made with sequences of different foreign PCN populations via NCBI GenBank database. The results of molecular studies showed similarities and differences between local and foreign PCN populations in the part of genome that was studied.

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A new species of Eogruidae (Aves: Gruiformes) from the Miocene of the Linxia Basin, Gansu, China: Evolutionary and climatic implications

The Auk ◽

10.1093/auk/ukz067 ◽

2019 ◽

Vol 137 (1) ◽

Cited By ~ 1

Author(s):

Grace Musser ◽

Zhiheng Li ◽

Julia A Clarke

Keyword(s):

New Species ◽

Northwest China ◽

Biogeographic History ◽

Linxia Basin ◽

History Of ◽

Key Drivers ◽

Fossil Records ◽

Present Description ◽

A New Species ◽

Insight Into

Abstract Despite having one of the most robust fossil records within core-gruiform birds (rails, cranes, and allies), the biogeographic history of Gruidae (cranes) and key drivers of diversification within this group remain largely unknown. The Eogruidae of Eurasia represent some of the earliest known crane-like fossils. Here, we present description of a new species represented by a well-preserved specimen of a foot from the late Miocene (7–6.5 mya) Liushu Formation of Linxia Basin, Gansu, China. It is the only eogruid fossil that has been found in this formation and is the first eogruid known from northwest China. Linxia Basin is located along the margin of the northeastern Tibetan Plateau, which allows for new insight into Miocene dispersal of the Eogruidae and potential climatological and geological connections. It is also the first specimen with an associated tarsometatarsus and nearly complete phalanges, including a claw, which provides further morphological information on this taxon. Referral of the new specimen to Eogruidae is based on extreme reduction of the trochlea of metatarsal II, which is most similar to the condition present in the eogruid subclade traditionally termed Ergilornithidae.

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Calibration problems in hydrogen luminosities

Symposium - International Astronomical Union ◽

10.1017/s0074180900053626 ◽

1966 ◽

Vol 24 ◽

pp. 322-330

Author(s):

A. Beer

Keyword(s):

Galactic Structure ◽

B Stars ◽

Insight Into

The investigations which I should like to summarize in this paper concern recent photo-electric luminosity determinations of O and B stars. Their final aim has been the derivation of new stellar distances, and some insight into certain patterns of galactic structure.

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Stochasting modeling of planetary ring systems

International Astronomical Union Colloquium ◽

10.1017/s025292110010154x ◽

1984 ◽

Vol 75 ◽

pp. 461-469 ◽

Cited By ~ 1

Author(s):

Robert W. Hart

Keyword(s):

Maximum Entropy ◽

Ring System ◽

The Sun ◽

Ultimate State ◽

Interparticle Interactions ◽

Ring Systems ◽

First Order ◽

Planetary Ring ◽

Insight Into

ABSTRACTThis paper models maximum entropy configurations of idealized gravitational ring systems. Such configurations are of interest because systems generally evolve toward an ultimate state of maximum randomness. For simplicity, attention is confined to ultimate states for which interparticle interactions are no longer of first order importance. The planets, in their orbits about the sun, are one example of such a ring system. The extent to which the present approximation yields insight into ring systems such as Saturn's is explored briefly.

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Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100074768 ◽

1983 ◽

Vol 41 ◽

pp. 194-195

Author(s):

D. F. Blake ◽

L. F. Allard ◽

D. R. Peacor

Keyword(s):

High Resolution ◽

Marine Invertebrates ◽

Sea Urchins ◽

Structural Features ◽

Sea Stars ◽

High Resolution Tem ◽

Relationship Of ◽

The Relationship ◽

Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

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