Phylogeny and evolution of Didymosphaeriaceae (Pleosporales): new Iranian samples and hosts, first divergence estimates, and multiple evidences of species mis-identifications

Phytotaxa ◽  
2019 ◽  
Vol 424 (3) ◽  
pp. 131-146
Author(s):  
SIMA KHODAEI ◽  
MAHDI ARZANLOU ◽  
ASADOLLAH BABAI-AHARI ◽  
OMAR ROTA-STABELLI ◽  
ILARIA PERTOT
Keyword(s):  
Large Subunit ◽  
Special Focus ◽  
High Loss ◽  
Worldwide Distribution ◽  
Late Neogene ◽  
The Family ◽  
Natural Hosts ◽  
Divergence Estimates ◽  
Phylogeny And Evolution ◽  
Bayesian Relaxed Clock

Didymosphaeriaceae is a cosmopolitan family of Ascomycetes including pathogens, saprobes, and endophytes living in a variety of substrates. While a monophyletic origin of the family is now widely accepted, the monophyly of some species, their worldwide distribution, and the timing of their origin is still disputed or unexplored. We first investigated Didymosphaeriaceae species diversity in six provinces of Iran with special focus on East Azarbaijan province: based on morphological features and analyses of concatenated internal transcribed spacer regions of the rDNA operon (ITS), large subunit rDNA (LSU) and beta-tubulin, only eight samples out of 1150 contained Didymosphaeroid fungi belonging to either Paraconiothyrium fuckelii or Kalmusia variispora; our sampling indicates 4 plants as new natural hosts of these fungi. We then performed an updated phylogenetic analysis of the Didymosphaeriaceae. Results indicate that the genera Paraconiothyrium and Kulmasia are polyphyletic as the likely result of previous species mis-assignments. We finally provided the first divergence estimates of the Didymosphaeriaceae using ITS. Bayesian relaxed clock analyses support an ancient (early Paleogene) origin of the family and a recent (late Neogene) diversification of extant genus compatible with a high loss of diversity in the past and/or of a still fragmented sampling of Didymosphaeriaceae diversity.

scholarly journals New records, a completed list and identification key of mites (Acari) associated with the stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae)

Acarologia ◽  
2018 ◽  
Vol 59 (1) ◽  
pp. 3-11
Author(s):  
Jenő Kontschán ◽  
Sándor Hornok
Keyword(s):  
First Record ◽  
Mite Species ◽  
Identification Key ◽  
Stomoxys Calcitrans ◽  
Stable Fly ◽  
Stable Flies ◽  
Worldwide Distribution ◽  
Blood Sucking ◽  
The Family ◽  
Medical Importance

The stable fly, Stomoxys calcitrans (L.) is a blood-sucking muscid fly species, with a worldwide distribution and high veterinary-medical importance. In this study, four mite species were collected from stable flies in Hungary. One mite species (Trichotrombidium muscarum (Riley, 1878)) from the family Microtrombidiidae was parasitic on the flies, collected in high numbers from their bodies. The other three species were found in small numbers on the flies, which they use only for transportation. The latter included the phoretic female of Pediculaster mesembrinae (Canestrini, 1881) (Acari: Siteroptidae), the phoretic deutonymph of the Halolaelaps sexclavatus (Oudemans, 1902) (Acari: Halolaelapidae) and Macrocheles subbadius (Berlese, 1904) (Acari: Macrochelidae). This is the first record of an association between the stable fly and two mite species (Trichotrombidium muscarum and Halolaelaps sexclavatus). A new, completed list and identification key of known stable fly associated mites are also provided.

Imiquimod Therapy for Molluscum Contagiosum

2000 ◽  
Vol 4 (2) ◽  
pp. 76-82 ◽  
Author(s):  
Elizabeth Liota ◽  
Kathleen J. Smith ◽  
Ronald Buckley ◽  
Padmen Menon ◽  
Henry Skelton
Keyword(s):  
Molluscum Contagiosum ◽  
Response To Therapy ◽  
Molluscum Contagiosum Virus ◽  
Imiquimod Cream ◽  
Inflammatory Reactions ◽  
Worldwide Distribution ◽  
Double Stranded Dna ◽  
The Family ◽  
Specific Proteins ◽  
Hiv 1

Background: Molluscum contagiosum virus (MCV) is a large double-stranded DNA virus that is a member of the family Poxviridae, and which has a worldwide distribution. As with other poxviruses, MCV does not appear to develop latency but evades the immune system through the production of viral specific proteins. Objective: To evaluate the therapeutic efficacy of imiquimod 5% cream for MCV. Methods: Thirteen children >5 and <10 years old, 19 immune-competent adults and four adults with advanced, but stable HIV-1 disease with >10 MCV lesions were treated with topical 5% imiquimod cream three times weekly for up to 16 weeks. Results: Fourteen of 19 immune-competent adults, four of four adults with HIV-1 disease, and six of 13 children had resolution of their MCV lesions in <16 weeks of imiquimod therapy. Children tended to have more pruritus and inflammatory reactions with imiquimod, although most treated lesions appeared to respond. The development of new MCV lesions resulted in a lower overall resolution of the lesions in children. Imiquimod appeared to be the most efficacious in patients with HIV-1 disease and in the genital area in immune-competent adults. Conclusion: Although topical imiquimod appears to have some efficacy in the therapy of MCV, in children the pruritus correlated relatively well with the development of new lesions. In adults, areas that would be expected to have better penetration appeared to respond more consistently. Although the HIV-1-positive patients had the largest clinical lesions at the onset of therapy, as a group they had the best overall response to therapy.

Urocystis agropyri (flag smut of wheat).

2021 ◽  
Author(s):  
Keyword(s):  
Triticum Aestivum ◽  
North America ◽  
Host Range ◽  
Wheat Straw ◽  
Crop Plants ◽  
Widespread Species ◽  
Flag Smut ◽  
Worldwide Distribution ◽  
The Family ◽  
Systemic Infections

Abstract U. agropyri causes flag smut on leaves of species in the family Poaceae. As a pathogen of grasses, it appears to have a wide host range (Mordue and Waller, 1981) and a worldwide distribution (UK CAB International, 1991). However, some authorities do not include the pathogen on wheat [Triticum aestivum], identified as Urocystis tritici, within U. agropyri. Rossman et al. (2006) place U. agropyri in the category of a "Threat to Major Crop Plants" and wheat and wheat straw imports are restricted in North America (Anon., 2005; CFIA, 2008). If the widespread species includes the wheat pathogen, then it is already present on all continents with agriculture and in major wheat-growing areas (Purdy, 1965), so it has already been introduced and may be difficult to exclude from additional areas. Both smuts are seed- and soil-borne, causing systemic infections that can be perennial in weeds and graminaceous crops, including turfgrasses. The spore balls are windborne (Purdy, 1965) and prevention of spread among wild grasses on land is not amenable to control.

Agathotanaididae (Crustacea: Tanaidacea) from the Angola Basin

Zootaxa ◽  
2003 ◽  
Vol 330 (1) ◽  
pp. 1 ◽  
Author(s):  
JÜRGEN GUERRERO-KOMMRITZ
Keyword(s):  
Additional Species ◽  
Worldwide Distribution ◽  
The Family

The family Agathotanaididae Lang, 1971 has a worldwide distribution, with only three species known from the Angola Basin: Paranarthrura insignis Hansen, 1913, Paranarthrura intermedia Kudinova-Pasternak, 1982 and Paranarthura angolensis Guerrero-Kommritz, Schmidt & Brandt, 2002. Furthermore, three additional species are reported from the region: one each of Agathotanais, Metagathotanais and Paragathotanais. Agathotanaididae is represented by four of its five genera in this area.

A new approach to the phylogeny of Euascomycetes with a cladistic outline of Arthoniales focussing on Roccellaceae

1990 ◽  
Vol 68 (11) ◽  
pp. 2458-2492 ◽  
Author(s):  
Anders Tehler
Keyword(s):  
Key Words ◽  
Type Species ◽  
Parallel Evolution ◽  
Special Focus ◽  
New Approach ◽  
Lichenicolous Fungi ◽  
Working Hypothesis ◽  
The Family ◽  
Traditional Sense ◽  
Bitunicate Ascus

A phylogenetic working hypothesis of euascomycete relationships is presented. Paraphysoidal ascolocular fungi are monophyletic and ascohymenial fungi are paraphyletic as paraphyses are considered plesiomorphic and paraphysoids apomorphic within euascomycete fungi. As a result it is not necessary to postulate parallel evolution of the bitunicate ascus, and furthermore presence of paraphyses in the prototunicate caliciaceous fungi is no longer in conflict with paraphyses in ascohymenial fungi. A cladistic outline of the order Arthoniales with special focus on the Roccellaceae including 20 taxa and 92 characters is presented. The type species of all genera considered are used as terminal taxa. It is suggested that the type species of Arthothelium should be excluded from the order Arthoniales. The Arthoniaceae are paraphyletic as Arthonia radiata and Arthothelium spectabile form a grade pair. The family Roccellaceae is monophyletic and corroborated in its traditional sense, but some rearrangements within the family are made. Opegrapha vulgata and Lecanactis abietina form a pair, but the family Opegraphaceae is paraphyletic if the pair Chiodecton sphaerale and Schismatomma pericleum are included. The originally described ascoma of the species Darbishirella gracillima, Ingaderia pulcherrima, and Reinkella fragillima are found to be lichenicolous fungi. The mycobiont ascomata of Darbishirella gracillima produce 3- not 2-septate spores. No ascomata of the mycobionts of the two latter species have as yet been found. Key words: Euascomycetes, Arthoniales, Roccellaceae, phylogeny, cladistics, lichenicolous.

scholarly journals Phylogeny and divergence estimates for the gasteruptiid wasps (Hymenoptera : Evanioidea) reveals a correlation with hosts

2020 ◽  
Author(s):  
Ben A. Parslow ◽  
John T. Jennings ◽  
Michael P. Schwarz ◽  
Mark I. Stevens
Keyword(s):  
Late Jurassic ◽  
Divergence Times ◽  
Evolutionary Relationships ◽  
Taxon Sampling ◽  
Early Eocene ◽  
Molecular Fragments ◽  
Nuclear Markers ◽  
The Family ◽  
Divergence Estimates ◽  
Solitary Bees And Wasps

The Gasteruptiidae are an easily recognised family of wasps whose larvae are considered predator-inquilines in the nests of solitary bees and wasps. There has been minimal molecular research on the family and as a result little understanding of the evolutionary relationships within the group. We present the first molecular phylogeny focused on Gasteruptiidae, generated using three molecular fragments (mitochondrial C01 and nuclear markers EF1-α and 28s) and estimate the divergence times of Evanioidea based on three secondary calibration points. The analyses included 142 specimens of Gasteruptiidae and 5 outgroup taxa from Aulacidae and Evaniidae. The monophyly of the Gasteruptiidae and its subfamilies Gasteruptiinae (Gasteruption) and Hyptiogastrinae (Hyptiogaster and Pseudofoenus) are confirmed. Our results indicate that Evanioidea diverged during the late Jurassic at 151.3 (171.99–136.15)Ma with Evaniidae during the early Cretaceous at 137.33 (140.86–133.67)Ma, and Gasteruptiidae during the Palaeocene at 60.23 (83.78–40.02)Ma. The crown age of Hyptiogastrinae was estimated to be during the mid-Eocene 40.72 (60.9–22.57)Ma and for Gasteruption during the early Eocene at 47.46 (64.7–31.75)Ma, which corresponded to their host divergence ages. We anticipate that more extensive taxon sampling combined with the use of phylogenomic data will help resolve low support within the Gasteruption clade.

scholarly journals Disabled Families: The Impacts of Disability and Care on Family Labour and Poverty in Rural Guatemala

Societies ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 76 ◽  
Author(s):  
Shaun Grech
Keyword(s):  
Rural Communities ◽  
Research Policy ◽  
Rural Families ◽  
Well Being ◽  
Economic Consequences ◽  
Dynamic Responses ◽  
Special Focus ◽  
The Family ◽  
The Disabled ◽  
And Shifts

An increasing body of literature has started to look at how disability impacts and shifts poverty in the global South in and through a range of areas, including health, education, and livelihoods. However, much of this research is limited to disabled individuals, while qualitative research focusing on and articulating the circumstances, needs and demands of rural families remains scarce, especially research focusing on Latin America. This paper reports on a qualitative study looking at how disability affects family labouring patterns in rural Guatemala, with a special focus on women carers of people with acquired physical impairments, in the bid to contribute to a more inclusive understanding of the disability and poverty relationship and its gendered dimensions. Findings highlight how in rural communities already living in dire poverty, the fragmentation of labour input of the disabled person, costs (notably health care) and intensified collective poverty, push fragile families with no safety nets into a set of dynamic responses in the bid to ensure survival of the family unit. These include harder and longer work patterns, interruption of paid labour, and/or induction into exploitative and perilous labour, not only for women, but also children. These responses are erosive and have severe personal, social, cultural and economic consequences, strengthening a deep, multidimensional, chronic and intergenerational impoverishment, transforming these families into ‘disabled families’, among the poorest of the poor. This paper concludes that research, policy and services need to move beyond the disabled individual to understand and address the needs and demands of whole families, notably women, and safeguard their livelihoods, because ultimately, these are the units that singlehandedly care for and ensure the well-being and survival of disabled people. It is also within these units that disability is constructed, shaped, and can ultimately be understood.

Morphological and genetic description of Moniliformis necromysi sp. n. (Archiacanthocephala) from the wild rodent Necromys lasiurus (Cricetidae: Sigmondontinae) in Brazil

2020 ◽  
Vol 94 ◽  
Author(s):  
A.P.N. Gomes ◽  
N.A. Costa ◽  
R. Gentile ◽  
R.V. Vilela ◽  
A. Maldonado
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Genetic Distances ◽  
Brazilian Cerrado ◽  
Wild Rodent ◽  
The Family ◽  
Molecular Phylogenies ◽  
A New Species

Abstract A new species of Moniliformis Travassos, 1915 (Acanthocephala: Moniliformidae) is described from the hairy-tailed bolo mouse, Necromys lasiurus Lund, 1840 (Cricetidae: Sigmondontinae), captured in the Brazilian Cerrado, in Uberlândia, state of Minas Gerais, Brazil. The specimens were studied by light and scanning electron microscopy. Molecular phylogenies were inferred from partial nuclear large subunit ribosomal RNA gene sequences and partial mitochondrial cytochrome c oxidase subunit I gene. The new species is distinguished from other moniliformid species by the number of rows and number of hooks per row, size of the proboscis, size of the eggs, host species and geographical distribution. Molecular phylogenies and genetic distances analyses demonstrated that Moniliformis necromysi sp. n. forms a well-supported monophyletic group with sequences of other species of Moniliformis and is distinguished from them, which agrees with the morphological characteristics, allocating the new species to this genus and to the family Moniliformidae Van Cleave, 1924. This is the first moniliformid acanthocephalan described from a wild rodent in Brazil.

scholarly journals Epidemiology, disease and control of infections in ruminants by herpesviruses - an overview : review article

2008 ◽  
Vol 79 (1) ◽  
Author(s):  
J.R. Patel ◽  
S. Didlick
Keyword(s):  
Severe Disease ◽  
Ecological Impact ◽  
Molecular Characteristics ◽  
Herpesvirus Type ◽  
Recombinant Viruses ◽  
Ruminant Species ◽  
The Family ◽  
Natural Hosts ◽  
And Control

There are at least 16 recognised herpesviruses that naturally infect cattle, sheep, goats and various species of deer and antelopes. Six of the viruses are recognised as distinct alphaherpesviruses and 9 as gammaherpesviruses. Buffalo herpesvirus (BflHV) and ovine herpesvirus-1 (OvHV-1) remain officially unclassified. The prevalence of ruminant herpesviruses varies from worldwide to geographically restricted in distribution. Viruses in both subfamilies Alphaherpesvirinae and Gammaherpesvirinae cause mild to moderate and severe disease in respective natural or secondary ruminant hosts. Accordingly, the economic and ecological impact of the viruses is also variable. The molecular characteristics of some members have been investigated in detail. This has led to the identification of virulence-associated genes and construction of deletion mutants and recombinant viruses. Some of the latter have been developed as commercial vaccines. This paper aims to give an overview of the epidemiology and pathogenesis of infection by these viruses, immuno-prophylaxis and mechanisms of recovery from infection. Since there are 128 ruminant species in the family Bovidae, it is likely that some herpesviruses remain undiscovered. We conclude that currently known ruminant alphaherpesviruses occur only in their natural hosts and do not cross stably into other ruminant species. By contrast, gammaherpesviruses have a much broader host range as evidenced by the fact that antibodies reactive to alcelaphine herpesvirus type 1 have been detected in 4 subfamilies in the family Bovidae, namely Alcelaphinae, Hippotraginae, Ovibovinae and Caprinae. New gammaherpesviruses within these subfamilies are likely to be discovered in the future.

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