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Chevée V, Hullahalli K, Dailey KG, Güereca L, Zhang C, Waldor MK, Portnoy DA. Temporal and spatial dynamics of Listeria monocytogenes central nervous system infection in mice. Proc Natl Acad Sci U S A 2024; 121:e2320311121. [PMID: 38635627 DOI: 10.1073/pnas.2320311121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 02/22/2024] [Indexed: 04/20/2024] Open
Abstract
Listeria monocytogenes is a bacterial pathogen that can cause life-threatening central nervous system (CNS) infections. While mechanisms by which L. monocytogenes and other pathogens traffic to the brain have been studied, a quantitative understanding of the underlying dynamics of colonization and replication within the brain is still lacking. In this study, we used barcoded L. monocytogenes to quantify the bottlenecks and dissemination patterns that lead to cerebral infection. Following intravenous (IV) inoculation, multiple independent invasion events seeded all parts of the CNS from the blood, however, only one clone usually became dominant in the brain. Sequential IV inoculations and intracranial inoculations suggested that clones that had a temporal advantage (i.e., seeded the CNS first), rather than a spatial advantage (i.e., invaded a particular brain region), were the main drivers of clonal dominance. In a foodborne model of cerebral infection with immunocompromised mice, rare invasion events instead led to a highly infected yet monoclonal CNS. This restrictive bottleneck likely arose from pathogen transit into the blood, rather than directly from the blood to the brain. Collectively, our findings provide a detailed quantitative understanding of the L. monocytogenes population dynamics that lead to CNS infection and a framework for studying the dynamics of other cerebral infections.
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Affiliation(s)
- Victoria Chevée
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
| | - Karthik Hullahalli
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA 02115
- Department of Microbiology, Harvard Medical School, Boston, MA 02115
- HHMI, Bethesda, MD 20815
| | - Katherine G Dailey
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA 02115
- Department of Microbiology, Harvard Medical School, Boston, MA 02115
- HHMI, Bethesda, MD 20815
| | - Leslie Güereca
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
| | - Chenyu Zhang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
| | - Matthew K Waldor
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA 02115
- Department of Microbiology, Harvard Medical School, Boston, MA 02115
- HHMI, Bethesda, MD 20815
| | - Daniel A Portnoy
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720
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2
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Littleford-Colquhoun B, Kartzinel TR. A CRISPR-based strategy for targeted sequencing in biodiversity science. Mol Ecol Resour 2024; 24:e13920. [PMID: 38153158 DOI: 10.1111/1755-0998.13920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/10/2023] [Accepted: 12/13/2023] [Indexed: 12/29/2023]
Abstract
Many applications in molecular ecology require the ability to match specific DNA sequences from single- or mixed-species samples with a diagnostic reference library. Widely used methods for DNA barcoding and metabarcoding employ PCR and amplicon sequencing to identify taxa based on target sequences, but the target-specific enrichment capabilities of CRISPR-Cas systems may offer advantages in some applications. We identified 54,837 CRISPR-Cas guide RNAs that may be useful for enriching chloroplast DNA across phylogenetically diverse plant species. We tested a subset of 17 guide RNAs in vitro to enrich plant DNA strands ranging in size from diagnostic DNA barcodes of 1,428 bp to entire chloroplast genomes of 121,284 bp. We used an Oxford Nanopore sequencer to evaluate sequencing success based on both single- and mixed-species samples, which yielded mean chloroplast sequence lengths of 2,530-11,367 bp, depending on the experiment. In comparison to mixed-species experiments, single-species experiments yielded more on-target sequence reads and greater mean pairwise identity between contigs and the plant species' reference genomes. But nevertheless, these mixed-species experiments yielded sufficient data to provide ≥48-fold increase in sequence length and better estimates of relative abundance for a commercially prepared mixture of plant species compared to DNA metabarcoding based on the chloroplast trnL-P6 marker. Prior work developed CRISPR-based enrichment protocols for long-read sequencing and our experiments pioneered its use for plant DNA barcoding and chloroplast assemblies that may have advantages over workflows that require PCR and short-read sequencing. Future work would benefit from continuing to develop in vitro and in silico methods for CRISPR-based analyses of mixed-species samples, especially when the appropriate reference genomes for contig assembly cannot be known a priori.
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Affiliation(s)
- Bethan Littleford-Colquhoun
- Department of Ecology, Evolution, and Organismal Biology, Brown University, Providence, Rhode Island, USA
- Institute at Brown for Environment and Society, Brown University, Providence, Rhode Island, USA
| | - Tyler R Kartzinel
- Department of Ecology, Evolution, and Organismal Biology, Brown University, Providence, Rhode Island, USA
- Institute at Brown for Environment and Society, Brown University, Providence, Rhode Island, USA
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3
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Schaff DL, Fasse AJ, White PE, Vander Velde RJ, Shaffer SM. Clonal differences underlie variable responses to sequential and prolonged treatment. Cell Syst 2024; 15:213-226.e9. [PMID: 38401539 PMCID: PMC11003565 DOI: 10.1016/j.cels.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 11/14/2023] [Accepted: 01/29/2024] [Indexed: 02/26/2024]
Abstract
Cancer cells exhibit dramatic differences in gene expression at the single-cell level, which can predict whether they become resistant to treatment. Treatment perpetuates this heterogeneity, resulting in a diversity of cell states among resistant clones. However, it remains unclear whether these differences lead to distinct responses when another treatment is applied or the same treatment is continued. In this study, we combined single-cell RNA sequencing with barcoding to track resistant clones through prolonged and sequential treatments. We found that cells within the same clone have similar gene expression states after multiple rounds of treatment. Moreover, we demonstrated that individual clones have distinct and differing fates, including growth, survival, or death, when subjected to a second treatment or when the first treatment is continued. By identifying gene expression states that predict clone survival, this work provides a foundation for selecting optimal therapies that target the most aggressive resistant clones within a tumor. A record of this paper's transparent peer review process is included in the supplemental information.
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Affiliation(s)
- Dylan L Schaff
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19146, USA
| | - Aria J Fasse
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19146, USA; Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Phoebe E White
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19146, USA
| | - Robert J Vander Velde
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19146, USA; Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19146, USA
| | - Sydney M Shaffer
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19146, USA; Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19146, USA.
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4
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Radmand A, Kim H, Beyersdorf J, Dobrowolski CN, Zenhausern R, Paunovska K, Huayamares SG, Hua X, Han K, Loughrey D, Hatit MZC, Del Cid A, Ni H, Shajii A, Li A, Muralidharan A, Peck HE, Tiegreen KE, Jia S, Santangelo PJ, Dahlman JE. Cationic cholesterol-dependent LNP delivery to lung stem cells, the liver, and heart. Proc Natl Acad Sci U S A 2024; 121:e2307801120. [PMID: 38437539 PMCID: PMC10945827 DOI: 10.1073/pnas.2307801120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/22/2023] [Indexed: 03/06/2024] Open
Abstract
Adding a cationic helper lipid to a lipid nanoparticle (LNP) can increase lung delivery and decrease liver delivery. However, it remains unclear whether charge-dependent tropism is universal or, alternatively, whether it depends on the component that is charged. Here, we report evidence that cationic cholesterol-dependent tropism can differ from cationic helper lipid-dependent tropism. By testing how 196 LNPs delivered mRNA to 22 cell types, we found that charged cholesterols led to a different lung:liver delivery ratio than charged helper lipids. We also found that combining cationic cholesterol with a cationic helper lipid led to mRNA delivery in the heart as well as several lung cell types, including stem cell-like populations. These data highlight the utility of exploring charge-dependent LNP tropism.
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Affiliation(s)
- Afsane Radmand
- Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA30332
- Department of Chemical Engineering, Georgia Institute of Technology, Atlanta, GA30332
| | - Hyejin Kim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Jared Beyersdorf
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Curtis N. Dobrowolski
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Ryan Zenhausern
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Kalina Paunovska
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Sebastian G. Huayamares
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Xuanwen Hua
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Keyi Han
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - David Loughrey
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Marine Z. C. Hatit
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Ada Del Cid
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Huanzhen Ni
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Aram Shajii
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Andrea Li
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Abinaya Muralidharan
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA30332
- Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA30332
| | - Hannah E. Peck
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Karen E. Tiegreen
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Shu Jia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - Philip J. Santangelo
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
| | - James E. Dahlman
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA30332
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Santos-Perdomo I, Suárez D, Moraza ML, Arribas P, Andújar C. Towards a Canary Islands barcode database for soil biodiversity: revealing cryptic and unrecorded mite species diversity within insular soils. Biodivers Data J 2024; 12:e113301. [PMID: 38314123 PMCID: PMC10838043 DOI: 10.3897/bdj.12.e113301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/23/2023] [Indexed: 02/06/2024] Open
Abstract
Soil arthropod diversity contributes to a high proportion of the total biodiversity on Earth. However, most soil arthropods are still undescribed, hindering our understanding of soil functioning and global biodiversity estimations. Inventorying soil arthropods using conventional taxonomical approaches is particularly difficult and costly due to the great species richness, abundance and local-scale heterogeneity of mesofauna communities and the poor taxonomic background knowledge of most lineages. To alleviate this situation, we have designed and implemented a molecular barcoding framework adapted to soil fauna. This pipeline includes different steps, starting with a morphology-based selection of specimens which are imaged. Then, DNA is extracted non-destructively. Both images and voucher specimens are used to assign a taxonomic identification, based on morphology that is further checked for consistency with molecular information. Using this procedure, we studied 239 specimens of mites from the Canary Islands including representatives of Mesostigmata, Sarcoptiformes and Trombidiformes, of which we recovered barcode sequences for 168 specimens that were morphologically identified to 49 species, with nine specimens that could only be identified at the genus or family levels. Multiple species delimitation analyses were run to compare molecular delimitations with morphological identifications, including ASAP, mlPTP, BINs and 3% and 8% genetic distance thresholds. Additionally, a species-level search was carried out at the Biodiversity Databank of the Canary Islands (BIOTA) to evaluate the number of species in our dataset that were not previously recorded in the archipelago. In parallel, a sequence-level search of our sequences was performed against BOLD Systems. Our results reveal that multiple morphologically identified species correspond to different molecular lineages, which points to significant levels of unknown cryptic diversity within the archipelago. In addition, we evidenced that multiple species in our dataset constituted new records for the Canary Islands fauna and that the information for these lineages within online genetic repositories is very incomplete. Our study represents the first systematic effort to catalogue the soil arthropod mesofauna of the Canary Islands and establishes the basis for the Canary Islands Soil Biodiversity barcode database. This resource will constitute a step forward in the knowledge of these arthropods in a region of special interest.
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Affiliation(s)
- Irene Santos-Perdomo
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206, La Laguna, Spain Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206 La Laguna Spain
- School of Doctoral and Postgraduate Studies, University of La Laguna, 38206, La Laguna, Spain School of Doctoral and Postgraduate Studies, University of La Laguna, 38206 La Laguna Spain
| | - Daniel Suárez
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206, La Laguna, Spain Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206 La Laguna Spain
- School of Doctoral and Postgraduate Studies, University of La Laguna, 38206, La Laguna, Spain School of Doctoral and Postgraduate Studies, University of La Laguna, 38206 La Laguna Spain
| | - María L Moraza
- Universidad de Navarra, Instituto de Biodiversidad y Medioambiente BIOMA, Irunlarrea 1, 31008, Pamplona, Spain Universidad de Navarra, Instituto de Biodiversidad y Medioambiente BIOMA, Irunlarrea 1, 31008 Pamplona Spain
| | - Paula Arribas
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206, La Laguna, Spain Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206 La Laguna Spain
| | - Carmelo Andújar
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206, La Laguna, Spain Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), 38206 La Laguna Spain
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6
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Erratum: Community dynamics and co-occurrence relationships of pelagic ciliates and their potential prey at a coastal and an offshore station in the ultra-oligotrophic Eastern Mediterranean Sea. Front Genet 2024; 14:1358985. [PMID: 38250578 PMCID: PMC10797609 DOI: 10.3389/fgene.2023.1358985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fgene.2023.1219085.].
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Arjona Y, Arribas P, Salces-Castellano A, López H, Emerson BC, Andújar C. Meta barcoding for biodiversity inventory blind spots: A test case using the beetle fauna of an insular cloud forest. Mol Ecol 2023; 32:6130-6146. [PMID: 36197789 DOI: 10.1111/mec.16716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 09/24/2022] [Accepted: 09/28/2022] [Indexed: 11/28/2022]
Abstract
Soils harbour a rich arthropod fauna, but many species are still not formally described (Linnaean shortfall) and the distribution of those already described is poorly understood (Wallacean shortfall). Metabarcoding holds much promise to fill this gap, however, nuclear copies of mitochondrial genes, and other artefacts lead to taxonomic inflation, which compromise the reliability of biodiversity inventories. Here, we explore the potential of a bioinformatic approach to jointly "denoise" and filter nonauthentic mitochondrial sequences from metabarcode reads to obtain reliable soil beetle inventories and address open questions in soil biodiversity research, such as the scale of dispersal constraints in different soil layers. We sampled cloud forest arthropod communities from 49 sites in the Anaga peninsula of Tenerife (Canary Islands). We performed whole organism community DNA (wocDNA) metabarcoding, and built a local reference database with COI barcode sequences of 310 species of Coleoptera for filtering reads and the identification of metabarcoded species. This resulted in reliable haplotype data after considerably reducing nuclear mitochondrial copies and other artefacts. Comparing our results with previous beetle inventories, we found: (i) new species records, potentially representing undescribed species; (ii) new distribution records, and (iii) validated phylogeographic structure when compared with traditional sequencing approaches. Analyses also revealed evidence for higher dispersal constraint within deeper soil beetle communities, compared to those closer to the surface. The combined power of barcoding and metabarcoding contribute to mitigate the important shortfalls associated with soil arthropod diversity data, and thus address unresolved questions for this vast biodiversity fraction.
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Affiliation(s)
- Yurena Arjona
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
| | - Paula Arribas
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
| | - Antonia Salces-Castellano
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
- Department of Biology, Ecology and Evolution, University of Liege, Liege, Belgium
| | - Heriberto López
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
| | - Brent C Emerson
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
| | - Carmelo Andújar
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), La Laguna, Tenerife, Canary Islands, Spain
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Evangelou V, Lytra I, Krokida A, Antonatos S, Georgopoulou I, Milonas P, Papachristos DP. Insights into the Diversity and Population Structure of Predominant Typhlocybinae Species Existing in Vineyards in Greece. Insects 2023; 14:894. [PMID: 37999093 PMCID: PMC10672024 DOI: 10.3390/insects14110894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Insects of the subfamily Typhlocybinae (Hemiptera: Cicadellidae) are pests of economically important agricultural and horticultural crops. They damage the plants directly or indirectly by transmitting plant pathogens, resulting in significant yield loss. Several leafhoppers of this subfamily use vines as hosts. Accurate and rapid identification is the key to their successful management. The aim of this study is to determine the Typhlocybinae species that exist in vineyards all over Greece and investigate the relationship between them. For this purpose, yellow sticky traps were placed, morphological and molecular data were collected, and phylogenetic models were analyzed. The mitochondrial marker Cytochrome Oxidase Subunit I (mtCOI) was applied for the DNA and phylogenetic analysis. The combination of morphological and molecular data resulted in identifying the existence of six different species all over Greece: Arboridia adanae, Asymmetrasca decedens, Hebata decipiens, Hebata vitis, Jacobiasca lybica and Zygina rhamni. Forty-eight different haplotypes were found to exist in the different regions of the country.
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Affiliation(s)
- Vasiliki Evangelou
- Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, 8 Stefanou Delta Str., Kifissia, 14561 Athens, Greece; (I.L.); (A.K.); (S.A.); (I.G.); (P.M.); (D.P.P.)
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Sertić Kovačević M, Baričević A, Kružić P, Maurić Maljković M, Hamer B. Barcoding ( COI) Sea Cucumber Holothuria mammata Distribution Analysis: Adriatic Rare or Common Species? Genes (Basel) 2023; 14:2059. [PMID: 38003002 PMCID: PMC10671717 DOI: 10.3390/genes14112059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
The overexploitation of the western Pacific Ocean has expanded the sea cucumber fishery into new regions to supply the Asian market. In 2013, sea cucumbers were removed from the Croatian marine protected species list, and commercial fishery took place for a short period (2017-2018) in the Eastern Adriatic Sea. However, holothuroid species are difficult to distinguish. Holothuria mammata is a species that has rarely been reported in this region and strongly resembles the common species Holothuria tubulosa. This is the first study to assess the genetic diversity of sea cucumbers in the Adriatic Sea using genetic barcoding of the mitochondrial gene cytochrome c oxidase subunit 1 (COI). Specimens for barcoding were collected from the northern and central Adriatic, along with a specimen that had been previously identified as H. sp. cf. mammata based on its morphological characteristics. While genetic analyses showed identified this specimen as H. tubulosa, 30% of the collected specimens were genetically identified as H. mammata. These results call into question the historically accepted sea cucumber assemblage in the Adriatic Sea, which regarded H. mammata as a rare species and generally disregarded its presence in large census studies. Such species distribution data are extremely important in developing and monitoring a sustainable fishery.
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Affiliation(s)
- Maya Sertić Kovačević
- Laboratory for Marine Biology, Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia; (M.S.K.); (P.K.)
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
| | - Ana Baričević
- Laboratory for Evolutionary Ecology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia;
| | - Petar Kružić
- Laboratory for Marine Biology, Department of Zoology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia; (M.S.K.); (P.K.)
| | - Maja Maurić Maljković
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
- Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - Bojan Hamer
- Laboratory for Marine Nanotechnology and Biotechnology, Center for Marine Research, Ruđer Bošković Institute, Giordano Paliaga 5, 52210 Rovinj, Croatia
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Streicher MB, Johnson SD, Willows‐Munro S. Effect of fuchsin fixation of pollen on DNA barcode recovery. Ecol Evol 2023; 13:e10475. [PMID: 37664513 PMCID: PMC10468989 DOI: 10.1002/ece3.10475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/12/2023] [Accepted: 07/21/2023] [Indexed: 09/05/2023] Open
Abstract
Pollen grains attached to insects are a valuable source of ecological information which can be used to reconstruct visitation networks. Morphological pollen identification relies on light microscopy with pollen usually stained and mounted in fuchsin jelly, which is also used to remove pollen from the bodies of insects. Pollen embedded in fuchsin jelly could potentially be used for DNA barcoding and metabarcoding (large-scale taxonomic identification of complex mixed samples) and thus provide additional information for pollination networks. In this study, we determine whether fuchsin-embedded pollen can be used for downstream molecular applications. We evaluate the quality of plant barcode (ITS) sequences amplified from DNA extracted from both fresh (untreated) pollen, and pollen which had been embedded in fuchsin jelly. We show that the addition of fuchsin to DNA extraction does not impact DNA barcode sequence quality during short-term storage. DNA extractions from both untreated and fuchsin-treated pollen produced reliable barcode sequences of high quality. Our findings suggest that pollen which has been collected, stained, and embedded in fuchsin jelly for preliminary microscopy work can be used within several days for downstream genetic analysis, though the quality of DNA from pollen stored in fuchsin jelly for extended periods is yet to be established.
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Affiliation(s)
- Melanie B. Streicher
- Centre for Functional Biodiversity, School of Life SciencesUniversity of KwaZulu‐NatalScottsvilleSouth Africa
| | - Steven D. Johnson
- Centre for Functional Biodiversity, School of Life SciencesUniversity of KwaZulu‐NatalScottsvilleSouth Africa
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Shitikov E, Bespiatykh D. A revised SNP-based barcoding scheme for typing Mycobacterium tuberculosis complex isolates. mSphere 2023; 8:e0016923. [PMID: 37314207 PMCID: PMC10449489 DOI: 10.1128/msphere.00169-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/28/2023] [Indexed: 06/15/2023] Open
Abstract
The development of whole-genome sequencing technologies is gradually leading to a more detailed description of the population structure of the Mycobacterium tuberculosis complex (MTBC). In this study, we correlated previously published classifications on a collection of more than 10,000 genomes and proposed a new, comprehensive nomenclature that unifies the existing ones. In total, we identified 169 lineages and sublineages of M. tuberculosis/M. africanum and 9 animal-adapted species. For the purpose of organizing these genotypes in a more streamlined manner, we stratified them into five hierarchical levels. To represent the classification and compare it with the reference, we compiled a confirmatory data set of 670 high-quality isolates, which includes all genotypes and species of MTBC, and this confirmatory data set can serve as a basis for further studies. We proposed a set of 213 robust barcoding single-nucleotide polymorphisms and a suitable workflow for reliable differentiation of genotypes and species within the complex. This work integrates the results of all the major systematized studies to date to provide an understanding of the global diversity of the MTBC population structure. The results of this work may ultimately help to reliably determine the pathogen genotype and associate it with traits that reflect its prevalence, virulence, vaccination, and treatment efficiency, as well as to reliably find natural features revealed during its spread. IMPORTANCE Through years of research into the Mycobacterium tuberculosis complex (MTBC), a number of ambiguous phylogenetic classifications have emerged, which often overlap with one another. In the present study, we have combined all major studies on MTBC classification and inferred a unified, most complete to date classification and accompanying SNP barcodes.
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Affiliation(s)
- Egor Shitikov
- Department of biomedicine and genomics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Dmitry Bespiatykh
- Department of biomedicine and genomics, Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
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12
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Romano F, Pitta P, John U. Community dynamics and co-occurrence relationships of pelagic ciliates and their potential prey at a coastal and an offshore station in the ultra-oligotrophic Eastern Mediterranean Sea. Front Genet 2023; 14:1219085. [PMID: 37547468 PMCID: PMC10400710 DOI: 10.3389/fgene.2023.1219085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023] Open
Abstract
Ciliates have been recognized as one of the major components of the microbial food web, especially in ultra-oligotrophic waters, such as the Eastern Mediterranean Sea, where nutrients are scarce and the microbial community is dominated by pico- and nano-sized organisms. For this reason, ciliates play an important role in these ecosystems since they are the main planktonic grazers. Regardless the importance of these organisms, little is known about the community structure of heterotrophic and mixotrophic ciliates and how they are associated to their potential prey. In this study, we used 18S V4 rRNA gene metabarcoding to analyze ciliate community dynamics and how the relationship with potential prey changes according to different seasons and depths. Samples were collected seasonally at two stations of the Eastern Mediterranean Sea (HCB: coastal, M3A: offshore) from the surface and deep chlorophyll maximum (DCM) layers. The ciliate community structure varied across depths in HCB and across seasons in M3A, and the network analysis showed that in both stations, mixotrophic oligotrichs were positively associated with diatoms and showed few negative associations with ASVs annotated as marine Stramenopiles (MAST). On the other hand, heterotrophic tintinnids showed negative relationships in both HCB and M3A stations, mostly with Ochrophyta and Chlorophyta. These results showed, in first place that, although the two stations are close to each other, the ciliate dynamics differed between them. Moreover, mixotrophic and heterotrophic ciliates may have different ecological niches since mixotrophic ciliates may be more selective compared to heterotrophic species regarding their prey. These findings are the first glimpse into an understanding of the dynamics between heterotrophic and mixotrophic ciliates and their role in microbial assemblages and dynamics of ultra-oligotrophic environments.
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Affiliation(s)
- Filomena Romano
- Marine Biological Section, University of Copenhagen, Helsingør, Denmark
- Hellenic Centre for Marine Research, Institute of Oceanography, Heraklion, Greece
| | - Paraskevi Pitta
- Marine Biological Section, University of Copenhagen, Helsingør, Denmark
| | - Uwe John
- Ecological Chemistry, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
- Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Oldenburg, Germany
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13
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Giordani G, Whitmore D, Vanin S. A New, Non-Invasive Methodology for the Molecular Identification of Adult Sarcophagidae from Collections. Insects 2023; 14:635. [PMID: 37504641 PMCID: PMC10380211 DOI: 10.3390/insects14070635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023]
Abstract
Correct species identification is the cornerstone of all scientific studies that involve insects. Alongside traditional morphological identification techniques, molecular identification based on the characterization and analysis of specific mitochondrial or nuclear gene regions is becoming commonplace. Despite the good results that can be achieved, DNA extraction usually involves invasive techniques that lead to the partial or total destruction of specimens. In this work, a non-invasive DNA extraction technique is described. The technique was tested on the abdomens of dry-preserved Sarcophagidae (Diptera) specimens collected between 1889 and 2015. This allowed for the correct identification of species without impairing diagnostic morphological structures useful for further studies.
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Affiliation(s)
- Giorgia Giordani
- Dipartimento di Farmacia e Biotecnologie (FABIT), Alma Mater Studiorum Università di Bologna, 40126 Bologna, Italy
| | - Daniel Whitmore
- Staatliches Museum für Naturkunde Stuttgart, 70191 Stuttgart, Germany
| | - Stefano Vanin
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita (DISTAV), Università di Genova, 16132 Genova, Italy
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), 16149 Genova, Italy
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14
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Stevenson ZC, Moerdyk-Schauwecker MJ, Banse SA, Patel DS, Lu H, Phillips PC. High-throughput library transgenesis in Caenorhabditis elegans via Transgenic Arrays Resulting in Diversity of Integrated Sequences (TARDIS). eLife 2023; 12:RP84831. [PMID: 37401921 PMCID: PMC10328503 DOI: 10.7554/elife.84831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023] Open
Abstract
High-throughput transgenesis using synthetic DNA libraries is a powerful method for systematically exploring genetic function. Diverse synthesized libraries have been used for protein engineering, identification of protein-protein interactions, characterization of promoter libraries, developmental and evolutionary lineage tracking, and various other exploratory assays. However, the need for library transgenesis has effectively restricted these approaches to single-cell models. Here, we present Transgenic Arrays Resulting in Diversity of Integrated Sequences (TARDIS), a simple yet powerful approach to large-scale transgenesis that overcomes typical limitations encountered in multicellular systems. TARDIS splits the transgenesis process into a two-step process: creation of individuals carrying experimentally introduced sequence libraries, followed by inducible extraction and integration of individual sequences/library components from the larger library cassette into engineered genomic sites. Thus, transformation of a single individual, followed by lineage expansion and functional transgenesis, gives rise to thousands of genetically unique transgenic individuals. We demonstrate the power of this system using engineered, split selectable TARDIS sites in Caenorhabditis elegans to generate (1) a large set of individually barcoded lineages and (2) transcriptional reporter lines from predefined promoter libraries. We find that this approach increases transformation yields up to approximately 1000-fold over current single-step methods. While we demonstrate the utility of TARDIS using C. elegans, in principle the process is adaptable to any system where experimentally generated genomic loci landing pads and diverse, heritable DNA elements can be generated.
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Affiliation(s)
| | | | - Stephen A Banse
- Institute of Ecology and Evolution, University of OregonEugeneUnited States
| | - Dhaval S Patel
- School of Chemical & Biomolecular Engineering, Georgia Institute of TechnologyAtlantaUnited States
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of TechnologyAtlantaUnited States
| | - Hang Lu
- School of Chemical & Biomolecular Engineering, Georgia Institute of TechnologyAtlantaUnited States
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of TechnologyAtlantaUnited States
| | - Patrick C Phillips
- Institute of Ecology and Evolution, University of OregonEugeneUnited States
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15
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Pezzini FF, Ferrari G, Forrest LL, Hart ML, Nishii K, Kidner CA. Target capture and genome skimming for plant diversity studies. Appl Plant Sci 2023; 11:e11537. [PMID: 37601316 PMCID: PMC10439825 DOI: 10.1002/aps3.11537] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 06/16/2023] [Accepted: 07/10/2023] [Indexed: 08/22/2023]
Abstract
Recent technological advances in long-read high-throughput sequencing and assembly methods have facilitated the generation of annotated chromosome-scale whole-genome sequence data for evolutionary studies; however, generating such data can still be difficult for many plant species. For example, obtaining high-molecular-weight DNA is typically impossible for samples in historical herbarium collections, which often have degraded DNA. The need to fast-freeze newly collected living samples to conserve high-quality DNA can be complicated when plants are only found in remote areas. Therefore, short-read reduced-genome representations, such as target capture and genome skimming, remain important for evolutionary studies. Here, we review the pros and cons of each technique for non-model plant taxa. We provide guidance related to logistics, budget, the genomic resources previously available for the target clade, and the nature of the study. Furthermore, we assess the available bioinformatic analyses, detailing best practices and pitfalls, and suggest pathways to combine newly generated data with legacy data. Finally, we explore the possible downstream analyses allowed by the type of data generated using each technique. We provide a practical guide to help researchers make the best-informed choice regarding reduced genome representation for evolutionary studies of non-model plants in cases where whole-genome sequencing remains impractical.
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Affiliation(s)
| | - Giada Ferrari
- Royal Botanic Garden Edinburgh Edinburgh United Kingdom
| | | | | | - Kanae Nishii
- Royal Botanic Garden Edinburgh Edinburgh United Kingdom
| | - Catherine A Kidner
- Royal Botanic Garden Edinburgh Edinburgh United Kingdom
- School of Biological Sciences University of Edinburgh Edinburgh United Kingdom
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16
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Calvet-Seral J, Crespo-Yuste E, Mathys V, Rodriguez-Villalobos H, Ceyssens PJ, Martin A, Gonzalo-Asensio J. Targeted Chromosomal Barcoding Establishes Direct Genotype-Phenotype Associations for Antibiotic Resistance in Mycobacterium abscessus. Microbiol Spectr 2023; 11:e0534422. [PMID: 36988496 PMCID: PMC10269753 DOI: 10.1128/spectrum.05344-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/04/2023] [Indexed: 03/30/2023] Open
Abstract
A bedaquiline-resistant Mycobacterium abscessus isolate was sequenced, and a candidate mutation in the atpE gene was identified as responsible for the antibiotic resistance phenotype. To establish a direct genotype-phenotype relationship of this mutation which results in a Asp-to-Ala change at position 29 (D29A), we developed a recombineering-based method consisting of the specific replacement of the desired mutation in the bacterial chromosome. As surrogate bacteria, we used two M. abscessus bedaquiline-susceptible strains: ATCC 19977 and the SL541 clinical isolate. The allelic exchange substrates used in recombineering carried either the sole D29A mutation or a genetic barcode of silent mutations in codons flanking the D29A mutation. After selection of bedaquiline-resistant M. abscessus colonies transformed with both substrates, we obtained equivalent numbers of recombinants. These resistant colonies were analyzed by allele-specific PCR and Sanger sequencing, and we demonstrated that the presence of the genetic barcode was linked to the targeted incorporation of the desired mutation in its chromosomal location. All recombinants displayed the same MIC to bedaquiline as the original isolate, from which the D29A mutation was identified. Finally, to demonstrate the broad applicability of this method, we confirmed the association of bedaquiline resistance with the atpE A64P mutation in analysis performed in independent M. abscessus strains and by independent researchers. IMPORTANCE Antimicrobial resistance (AMR) threatens the effective prevention and treatment of an ever-increasing range of infections caused by microorganisms. On the other hand, infections caused by Mycobacterium abscessus affect people with chronic lung diseases, and their incidence has grown alarmingly in recent years. Further, these bacteria are known to easily develop AMR to the few therapeutic options available, making their treatment long-lasting and challenging. The recent introduction of new antibiotics against M. abscessus, such as bedaquiline, makes us anticipate a future when a plethora of antibiotic-resistant strains will be isolated and sequenced. However, in the era of whole-genome sequencing, one of the challenges is to unequivocally assign a biological function to each identified polymorphism. Thus, in this study, we developed a fast, robust, and reliable method to assign genotype-phenotype associations for putative antibiotic-resistant polymorphisms in M. abscessus.
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Affiliation(s)
- Juan Calvet-Seral
- Grupo de Genética de Micobacterias, Departamento de Microbiología, Facultad de Medicina, Universidad de Zaragoza IIS-Aragón, Zaragoza, Spain
- CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
| | - Estefanía Crespo-Yuste
- Grupo de Genética de Micobacterias, Departamento de Microbiología, Facultad de Medicina, Universidad de Zaragoza IIS-Aragón, Zaragoza, Spain
- CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
| | - Vanessa Mathys
- Unit of Human Bacterial Diseases, Sciensano, Brussels, Belgium
| | - Hector Rodriguez-Villalobos
- Cliniques Universitaires Saint-Luc, Microbiology Department, Université Catholique de Louvain, Brussels, Belgium
| | | | - Anandi Martin
- Institute of Experimental and Clinical Research, Université Catholique de Louvain, Woluwe-Saint-Lambert, Belgium
- Syngulon, Seraing, Belgium
| | - Jesús Gonzalo-Asensio
- Grupo de Genética de Micobacterias, Departamento de Microbiología, Facultad de Medicina, Universidad de Zaragoza IIS-Aragón, Zaragoza, Spain
- CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Biocomputación y Física de Sistemas Complejos, Zaragoza, Spain
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17
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Chatzoglou E, Tsaousi N, Apostolidis AP, Exadactylos A, Sandaltzopoulos R, Giantsis IA, Gkafas GA, Malandrakis EE, Sarantopoulou J, Tokamani M, Triantaphyllidis G, Miliou H. High-Resolution Melting (HRM) Analysis for Rapid Molecular Identification of Sparidae Species in the Greek Fish Market. Genes (Basel) 2023; 14:1255. [PMID: 37372435 DOI: 10.3390/genes14061255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
The red porgy (Pagrus pagrus) and the common dentex (Dentex dentex) are Sparidae species of high commercial value, traded in the Greek market. In some cases, fish species identification from Greek fisheries is difficult for the consumer due to the strong morphological similarities with their imported counterparts or closely related species such as Pagrus major, Pagrus caeroleustictus, Dentex gibbosus and Pagellus erythrinus, especially when specimens are frozen, filleted or cooked. Techniques based on DNA sequencing, such as COI barcoding, accurately identify species substitution incidents; however, they are time consuming and expensive. In this study, regions of mtDNA were analyzed with RFLPs, multiplex PCR and HRM in order to develop a rapid method for species identification within the Sparidae family. HRM analysis of a 113 bp region of cytb and/or a 156 bp region of 16s could discriminate raw or cooked samples of P. pagrus and D. dentex from the aforementioned closely related species and P. pagrus specimens sampled in the Mediterranean Sea when compared to those fished in the eastern Atlantic. HRM analysis exhibited high accuracy and repeatability, revealing incidents of mislabeling. Multiple samples can be analyzed within three hours, rendering this method a useful tool in fish fraud monitoring.
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Affiliation(s)
- Evanthia Chatzoglou
- Laboratory of Applied Hydrobiology, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Nefeli Tsaousi
- Laboratory of Applied Hydrobiology, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Apostolos P Apostolidis
- Laboratory of Fish & Fisheries, Department of Animal Production, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Athanasios Exadactylos
- Hydrobiology-Ichthyology Lab, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, 38446 Volos, Greece
| | - Raphael Sandaltzopoulos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Ioannis A Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
| | - Georgios A Gkafas
- Hydrobiology-Ichthyology Lab, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, 38446 Volos, Greece
| | - Emmanouil E Malandrakis
- Laboratory of Applied Hydrobiology, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Joanne Sarantopoulou
- Hydrobiology-Ichthyology Lab, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, 38446 Volos, Greece
| | - Maria Tokamani
- Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - George Triantaphyllidis
- Laboratory of Applied Hydrobiology, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Helen Miliou
- Laboratory of Applied Hydrobiology, Department of Animal Science, School of Animal Biosciences, Agricultural University of Athens, 11855 Athens, Greece
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18
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Abstract
Single-cell sequencing of RNA (scRNA-seq) has advanced our understanding of cellular heterogeneity and signaling in developmental biology and disease. A large number of complementary assays have been developed to profile transcriptomes of individual cells, also in combination with other readouts, such as chromatin accessibility or antibody-based analysis of protein surface markers. As scRNA-seq technologies are advancing fast, it is challenging to establish robust workflows and up-to-date protocols that are best suited to address the large range of research questions. Here, we review scRNA-seq techniques from mRNA end-counting to total RNA in relation to their specific features and outline the necessary sample preparation steps and quality control measures. Based on our experience in dealing with the continuously growing portfolio from the perspective of a central single-cell facility, we aim to provide guidance on how workflows can be best automatized and share our experience in coping with the continuous expansion of scRNA-seq techniques.
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Affiliation(s)
- Pooja Sant
- Single-cell Open Lab, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Karsten Rippe
- Division Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Jan-Philipp Mallm
- Single-cell Open Lab, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
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19
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Erdfelder F, Ebach F, Zoller R, Walterscheid V, Weiss C, Kappler J, Görtzen-Patin J, Schmitt J, Freudenthal NJ, Müller A, Ksellmann A, Grigutsch D, Külshammer M, Füssel M, Zenker S. Implementation of 2D Barcode Medication Labels and Smart Pumps in Pediatric Acute Care: Lessons Learned. Appl Clin Inform 2023; 14:503-512. [PMID: 37075805 PMCID: PMC10322227 DOI: 10.1055/a-2077-2457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/19/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND In pediatric intensive care, prescription, administration, and interpretation of drug doses are weight dependent. The use of standardized concentrations simplifies the preparation of drugs and increases safety. For safe administration as well as easy interpretation of intravenous drug dosing regimens with standardized concentrations, the display of weight-related dose rates on the infusion device is of pivotal significance. OBJECTIVES We report on challenges in the implementation of a new information technology-supported medication workflow. The workflow was introduced on eight beds in the pediatric heart surgery intensive care unit as well as in the pediatric anesthesia at the University of Bonn Medical Center. The proposed workflow utilizes medication labels generated from prescription data from the electronic health record. The generated labels include a two-dimensional barcode to transfer data to the infusion devices. METHODS Clinical and technical processes were agilely developed. The reliability of the system under real-life conditions was monitored. User satisfaction and potential for improvement were assessed. In addition, a structured survey among the nursing staff was performed. The questionnaire addressed usability as well as the end-users' perception of the effects on patient safety. RESULTS The workflow has been applied 44,111 times during the pilot phase. A total of 114 known failures in the technical infrastructure were observed. The survey showed good ratings for usability and safety (median "school grade" 2 or B for patient safety, intelligibility, patient identification, and handling). The medical management of the involved acute care facilities rated the process as clearly beneficial regarding patient safety, suggesting a rollout to all pediatric intensive care areas. CONCLUSION A medical information technology-supported medication workflow can increase user satisfaction and patient safety as perceived by the clinical end-users in pediatric acute care. The successful implementation benefits from an interdisciplinary team, active investigation of possible associated risks, and technical redundancy.
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Affiliation(s)
- Felix Erdfelder
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
- Applied Mathematical Physiology (AMP) Lab, Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
- Applied Medical Informatics (AMI) Lab, Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Fabian Ebach
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Richard Zoller
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
| | - Verena Walterscheid
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Claudia Weiss
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Jochen Kappler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Jan Görtzen-Patin
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Applied Medical Informatics (AMI) Lab, Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
- Department of Internal Medicine I - Gastroenterology and Hepatology, Nephrology, Infectious Diseases, Endocrinology and Diabetology, University Hospital Bonn, Bonn, Germany
| | - Joachim Schmitt
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Noa J. Freudenthal
- Pediatric Cardiac Surgery at the German Pediatric Heart Centre in Bonn, University Hospital Bonn, Bonn, Germany
| | - A. Müller
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Anne Ksellmann
- Pediatric Cardiac Surgery at the German Pediatric Heart Centre in Bonn, University Hospital Bonn, Bonn, Germany
| | - Daniel Grigutsch
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
- Applied Medical Informatics (AMI) Lab, Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Manuel Külshammer
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Maike Füssel
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Department of Neonatology and Pediatric Critical Care, University Hospital Bonn, Bonn, Germany
| | - Sven Zenker
- Staff Unit for Medical and Scientific Technology Development and Coordination, University Hospital Bonn, Bonn, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
- Applied Mathematical Physiology (AMP) Lab, Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
- Applied Medical Informatics (AMI) Lab, Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
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20
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Howland KK, Brock A. Cellular barcoding tracks heterogeneous clones through selective pressures and phenotypic transitions. Trends Cancer 2023:S2405-8033(23)00040-7. [PMID: 37105856 DOI: 10.1016/j.trecan.2023.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/29/2023]
Abstract
Genomic DNA barcoding has emerged as a sensitive and flexible tool to measure the fates of clonal subpopulations within a heterogeneous cancer cell population. Coupling cellular barcoding with single-cell transcriptomics permits the longitudinal analysis of molecular mechanisms with detailed clone-level resolution. Numerous recent studies have employed these tools to track clonal cell states in cancer progression and treatment response. With these new technologies comes the opportunity to examine longstanding questions about the origins and contributions of tumor cell heterogeneity and the roles of selection and phenotypic plasticity in disease progression and treatment.
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Affiliation(s)
- Kennedy K Howland
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78734, USA
| | - Amy Brock
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78734, USA.
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21
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McLaughlin JF, Aguilar C, Bernstein JM, Navia-Gine WG, Cueto-Aparicio LE, Alarcon AC, Alarcon BD, Collier R, Takyar A, Vong SJ, López-Chong OG, Driver R, Loaiza JR, De León LF, Saltonstall K, Lipshutz SE, Arcila D, Brock KM, Miller MJ. Comparative phylogeography reveals widespread cryptic diversity driven by ecology in Panamanian birds. bioRxiv 2023:2023.03.15.530646. [PMID: 36993716 PMCID: PMC10055050 DOI: 10.1101/2023.03.15.530646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Widespread species often harbor unrecognized genetic diversity, and investigating the factors associated with such cryptic variation can help us better understand the forces driving diversification. Here, we identify potential cryptic species based on a comprehensive dataset of COI mitochondrial DNA barcodes from 2,333 individual Panamanian birds across 429 species, representing 391 (59%) of the 659 resident landbird species of the country, as well as opportunistically sampled waterbirds. We complement this dataset with additional publicly available mitochondrial loci, such as ND2 and cytochrome b, obtained from whole mitochondrial genomes from 20 taxa. Using barcode identification numbers (BINs), we find putative cryptic species in 19% of landbird species, highlighting hidden diversity in the relatively well-described avifauna of Panama. Whereas some of these mitochondrial divergence events corresponded with recognized geographic features that likely isolated populations, such as the Cordillera Central highlands, the majority (74%) of lowland splits were between eastern and western populations. The timing of these splits are not temporally coincident across taxa, suggesting that historical events, such as the formation of the Isthmus of Panama and Pleistocene climatic cycles, were not the primary drivers of cryptic diversification. Rather, we observed that forest species, understory species, insectivores, and strongly territorial species-all traits associated with lower dispersal ability-were all more likely to have multiple BINs in Panama, suggesting strong ecological associations with cryptic divergence. Additionally, hand-wing index, a proxy for dispersal capability, was significantly lower in species with multiple BINs, indicating that dispersal ability plays an important role in generating diversity in Neotropical birds. Together, these results underscore the need for evolutionary studies of tropical bird communities to consider ecological factors along with geographic explanations, and that even in areas with well-known avifauna, avian diversity may be substantially underestimated.
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Affiliation(s)
- J. F. McLaughlin
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, USA
| | - Celestino Aguilar
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
| | - Justin M. Bernstein
- Department of Biology, Villanova University, Villanova, PA, USA
- Center for Genomics, University of Kansas, Lawrence, KS, USA
| | - Wayra G. Navia-Gine
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Pacific Biosciences, 1305 O’Brien Dr, Menlo Park, CA, USA
| | | | | | | | - Rugger Collier
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | - Anshule Takyar
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | - Sidney J. Vong
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | | | - Robert Driver
- Department of Biology, East Carolina University, Greenville, NC, USA
| | - Jose R. Loaiza
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
| | - Luis F. De León
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | | | | | - Dahiana Arcila
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
| | - Kinsey M. Brock
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, USA
- Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, CA, USA
| | - Matthew J. Miller
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Reneco International Wildlife Consultants, Abu Dhabi, UAE
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22
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Szumska J, Grimm D. Boosters for adeno-associated virus (AAV) vector (r)evolution. Cytotherapy 2023; 25:254-260. [PMID: 35999132 DOI: 10.1016/j.jcyt.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/06/2022] [Accepted: 07/16/2022] [Indexed: 02/07/2023]
Abstract
Adeno-associated virus (AAV) is one of the most exciting and most versatile templates for engineering of gene-delivery vectors for use in human gene therapy, owing to the existence of numerous naturally occurring capsid variants and their amenability to directed molecular evolution. As a result, the field has witnessed an explosion of novel "designer" AAV capsids and ensuing vectors over the last two decades, which have been isolated from comprehensive capsid libraries generated through technologies such as DNA shuffling or peptide display, and stratified under stringent positive and/or negative selection pressures. Here, we briefly highlight a panel of recent, innovative and transformative methodologies that we consider to have exceptional potential to advance directed AAV capsid evolution and to thereby accelerate AAV vector revolution. These avenues comprise original technologies for (i) barcoding and high-throughput screening of individual AAV variants or entire capsid libraries, (ii) selection of transduction-competent AAV vectors on the DNA level, (iii) enrichment of expression-competent AAV variants on the RNA level, as well as (iv) high-resolution stratification of focused AAV capsid libraries on the single-cell level. Together with other emerging AAV engineering stratagems, such as rational design or machine learning, these pioneering techniques promise to provide an urgently needed booster for AAV (r)evolution.
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Affiliation(s)
- Joanna Szumska
- Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Medical Faculty, University of Heidelberg, Heidelberg, Germany; BioQuant Center and Center for Integrative Infectious Diseases Research (CIID), University of Heidelberg, Heidelberg, Germany
| | - Dirk Grimm
- Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Medical Faculty, University of Heidelberg, Heidelberg, Germany; BioQuant Center and Center for Integrative Infectious Diseases Research (CIID), University of Heidelberg, Heidelberg, Germany; German Center for Infection Research (Deutsches Zentrum für Infektionsforschung, DZIF) and German Center for Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Erkrankungen, DZHK), partner site Heidelberg, Heidelberg, Germany.
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23
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Couëdel M, Dettai A, Guillaume MMM, Bruggemann F, Bureau S, Frattini B, Verde Ferreira A, Azie J, Bruggemann JH. New insights into the diversity of cryptobenthic Cirripectes blennies in the Mascarene Archipelago sampled using Autonomous Reef Monitoring Structures (ARMS). Ecol Evol 2023; 13:e9850. [PMID: 36937067 PMCID: PMC10019914 DOI: 10.1002/ece3.9850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 03/18/2023] Open
Abstract
Autonomous Reef Monitoring Structures (ARMS) are artificial mini-reefs designed for standardized sampling of sessile and small motile cryptobenthic organisms. ARMS are also effective for collecting small cryptobenthic fishes, such as the combtooth blennies of the genus Cirripectes. Recent studies discovered several Cirripectes species endemic to islands or archipelagos, in spite of the generally broad distributions of tropical and subtropical blennies. Thus, to evaluate the diversity and distribution of Cirripectes species in the Mascarene Archipelago, a little-studied region but an important biodiversity hotspot, complete mitochondrial genomes, and nuclear rhodopsin genes were sequenced for 39 specimens collected with ARMS deployed on outer reef slopes at Reunion and Rodrigues islands. Mitochondrial COI sequences were analyzed to integrate these specimens within the largest dataset of publicly available sequences. Three species were found in the Mascarene Archipelago, Cirripectes castaneus, Cirripectes randalli, and Cirripectes stigmaticus. C. castaneus and C. stigmaticus both have an Indo-Pacific distribution with several haplotypes shared among distant localities. In agreement with the literature, C. randalli shows a small-range endemism restricted to the Mascarenes. We confirmed the presence of C. castaneus, C. randalli, and C. stigmaticus in Rodrigues, and the presence of C. stigmaticus in Reunion. This study contributes to filling the gaps in taxonomic and molecular knowledge of the reef cryptobiome in the South-West Indian Ocean, and provides the first complete mitogenomes for the genus, a crucial step for future molecular-based inventories (e.g., eDNA).
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Affiliation(s)
- Marion Couëdel
- Université de La Réunion, UMR 9220 ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle‐Calédonie, CNRS)La RéunionSaint‐DenisFrance
| | - Agnes Dettai
- Muséum national d'Histoire naturelle (MNHN), UMR 7205 ISYEB (MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles)ParisFrance
| | - Mireille M. M. Guillaume
- Muséum national d'Histoire naturelle (MNHN)UMR 8067 BOrEA (MNHN, CNRS 2030, Sorbonne Université, IRD 207, Uni Caen‐Normandie, Université des Antilles)ParisFrance
- LabEx CORAILUniversité de PerpignanPerpignanFrance
| | - Fleur Bruggemann
- Université de La Réunion, UMR 9220 ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle‐Calédonie, CNRS)La RéunionSaint‐DenisFrance
| | - Sophie Bureau
- Université de La Réunion, UMR 9220 ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle‐Calédonie, CNRS)La RéunionSaint‐DenisFrance
| | - Baptiste Frattini
- Université de La Réunion, UMR 9220 ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle‐Calédonie, CNRS)La RéunionSaint‐DenisFrance
- Muséum national d'Histoire naturelle (MNHN)UMR 8067 BOrEA (MNHN, CNRS 2030, Sorbonne Université, IRD 207, Uni Caen‐Normandie, Université des Antilles)ParisFrance
| | - Amélie Verde Ferreira
- Muséum national d'Histoire naturelle (MNHN), UMR 7205 ISYEB (MNHN, CNRS, Sorbonne Université, EPHE, Université des Antilles)ParisFrance
| | | | - J. Henrich Bruggemann
- Université de La Réunion, UMR 9220 ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle‐Calédonie, CNRS)La RéunionSaint‐DenisFrance
- LabEx CORAILUniversité de PerpignanPerpignanFrance
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24
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Trnka A, Samaš P, Mąkol J. Chigger mite (Acariformes: Trombiculidae) infestation in reed passerine birds in Central Europe: a case of the bearded tit Panurus biarmicus. Parasitology 2023; 150:212-20. [PMID: 36562153 DOI: 10.1017/S0031182022001731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Larval trombiculid (chigger) mites are common ectoparasites of terrestrial vertebrates including humans, causing itching and skin inflammation known as trombiculiasis. Investigation of their diversity, distribution and seasonal abundance is therefore important from a veterinary and public health point of view. Although researchers have paid increased attention to these parasites in recent years, there is still little ecological data available on chiggers associated with birds inhabiting different types of habitats such as wetlands, for example. In 2021, we investigated the mite fauna in a specialist reedbed passerine, the bearded tit (Panurus biarmicus), and their effects on this host in the south-west Slovakia, Central Europe. A total of 1134 larvae of 1 mite species Blankaartia acuscutellaris were found in 99 out of 267 examined bearded tits. Juveniles were more infested than adult birds, but no differences were found between sexes. The larvae of mites first appeared on the host during the second half of June and peaked in the second half of July. After that, their numbers decreased gradually until October. Despite the relatively high prevalence and intensity of mite infestation in the bearded tit, no differences in body condition between infested and uninfested birds suggest that infestation by B. acuscutellaris may not have serious negative effects on the host health. Bearded tits can therefore be a reliable indicator of the presence of the chigger mites in wetland habitats.
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25
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Keck F, Altermatt F. Management of DNA reference libraries for barcoding and metabarcoding studies with the R package refdb. Mol Ecol Resour 2023; 23:511-518. [PMID: 36239541 DOI: 10.1111/1755-0998.13723] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 09/13/2022] [Accepted: 10/11/2022] [Indexed: 01/04/2023]
Abstract
DNA barcoding and metabarcoding are revolutionizing the study and survey of biodiversity. In order to assign taxonomic labels to the DNA sequence data retrieved, these methods are strongly dependent on comprehensive and accurate reference databases. Producing reliable databases linking biological sequences and taxonomic data can be-and often has been-done using mainstream tools such as spreadsheet software. However, spreadsheets quickly become insufficient when the amount of data increases to thousands of taxa and sequences to be matched, and validation operations become more complex and are error prone if done in a manual way. Thus, there is a clear need for providing scientists with user-friendly, reliable and powerful tools to manipulate and manage DNA reference databases in tractable, sound and efficient ways. Here, we introduce the R package refdb as an environment for semi-automatic and assisted construction of DNA reference libraries. The refdb package is a reference database manager offering a set of powerful functions to import, organize, clean, filter, audit and export the data. It is broadly applicable in metabarcoding data generally obtained in biodiversity and biomonitoring studies. We present the main features of the package and outline how refdb can speed up reference database generation, management and handling, and thus contribute to standardization and repeatability in barcoding and metabarcoding studies.
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Affiliation(s)
- François Keck
- Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Florian Altermatt
- Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
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26
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Hardoim CCP, Hardoim PR, Lôbo-Hajdu G, Custódio MR, Thomas T. The microbiome of the sponge Aplysina caissara in two sites with different levels of anthropogenic impact. FEMS Microbiol Lett 2023; 370:fnad064. [PMID: 37401172 DOI: 10.1093/femsle/fnad064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023] Open
Abstract
Despite the important roles that marine sponges play in ecosystem functioning and structuring, little is known about how the sponge holobiont responds to local anthropogenic impacts. Here we assess the influence of an impacted environment (Praia Preta) on the microbial community associated with the endemic sponge Aplysina caissara in comparison to a less-impacted area (Praia do Guaecá) from the coast of São Paulo state (Brazil, southwestern Atlantic coast). We hypothesized that the local anthropogenic impacts will change the microbiome of A. caissara and that the community assembly will be driven by a different process (i.e. deterministic versus stochastic) under distinct levels of impact. The microbiome at the amplicon sequence variants level was found to be statistically distinct between sponges from the different sites, and this was also seen for the microbial communities of the surrounding seawater and sediments. Microbial communities of A. caissara from both sites were found to be assembled by deterministic processes, even though the sites presented distinct anthropogenic impacts, showing a pivotal role of the sponge host in selecting its own microbiome. Overall, this study revealed that local anthropogenic impacts altered the microbiome of A. caissara; however, assembly processes are largely determined by the sponge host.
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Affiliation(s)
- Cristiane C P Hardoim
- São Paulo State University, Praça Infante Dom Henrique s/nº, Parque Bitaru, São Vicente, São Paulo, CEP 11.330-900, Brazil
- Graduate Program in Evolution and Diversity of the Federal University of ABC, Av. dos Estados, 5001, Bairro Bangu, Santo André, São Paulo, CEP 09210-580, Brazil
| | - Pablo R Hardoim
- São Paulo State University, Praça Infante Dom Henrique s/nº, Parque Bitaru, São Vicente, São Paulo, CEP 11.330-900, Brazil
| | - Gisele Lôbo-Hajdu
- Department of Genetics, Biology Institute Roberto Alcântara Gomes, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, CEP: 20550-013, Brazil
| | - Márcio R Custódio
- Department of Genetics, Biology Institute Roberto Alcântara Gomes, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, CEP: 20550-013, Brazil
- Department of Physiology, Institute of Biosciences, University of São Paulo, Rua do Matão, Travessa 14 , 101, São Paulo, CEP 05508-090, Brazil
| | - Torsten Thomas
- Department of Genetics, Biology Institute Roberto Alcântara Gomes, Rio de Janeiro State University, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, CEP: 20550-013, Brazil
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
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27
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Bourret TB, Fajardo SN, Frankel SJ, Rizzo DM. Cataloging Phytophthora Species of Agriculture, Forests, Horticulture, and Restoration Outplantings in California, U.S.A.: A Sequence-Based Meta-Analysis. Plant Dis 2023; 107:67-75. [PMID: 35724315 DOI: 10.1094/pdis-01-22-0187-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
California contains a diverse flora, and knowledge of the pathogens that threaten those plants is essential to managing their long-term health. To better understand threats to California plant health, a meta-analysis of Phytophthora detections within the state was conducted using publicly available sequences as a primary source of data rather than published records. Accessions of internal transcribed spacer (ITS) ribosomal DNA were cataloged from 800 Californian Phytophthora isolates, analyzed, and determined to correspond to 80 taxa, including several phylogenetically distinct provisional species. A number of Phytophthora taxa not previously reported from California were identified, including 20 described species. Pathways of introduction and spread were analyzed by categorizing isolates' origins, grouped by land-use: (i) agriculture, (ii) forests and other natural ecosystems, (iii) horticulture and nurseries, or (iv) restoration outplantings. The pooled Phytophthora metacommunities of the restoration outplantings and horticulture land-use categories were the most similar, whereas the communities pooled from forests and agriculture were least similar. Phytophthora cactorum, P. pini, P. pseudocryptogea, and P. syringae were identified in all four land-use categories, while 13 species were found in three. P. gonapodyides was the most common species by number of ITS accessions and exhibited the greatest diversity of ITS haplotypes. P. cactorum, P. ramorum, and P. nicotianae were associated with the greatest number of host genera. In this analysis, the Phytophthora spp. most prevalent in California differ from those compiled from the scientific literature.
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Affiliation(s)
- Tyler B Bourret
- Department of Plant Pathology, University of California, Davis, Davis, CA 95616
| | - Sebastian N Fajardo
- Department of Plant Pathology, University of California, Davis, Davis, CA 95616
| | - Susan J Frankel
- Pacific Southwest Research Station, United States Department of Agriculture Forest Service, Albany, CA 94710
| | - David M Rizzo
- Department of Plant Pathology, University of California, Davis, Davis, CA 95616
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28
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Jafari S, Müller B, Rulik B, Rduch V, S. Peters R. Another crack in the Dark Taxa wall: a custom DNA barcoding protocol for the species-rich and common Eurytomidae (Hymenoptera, Chalcidoidea). Biodivers Data J 2023; 11:e101998. [PMID: 37206111 PMCID: PMC10189536 DOI: 10.3897/bdj.11.e101998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/03/2023] [Indexed: 05/21/2023] Open
Abstract
DNA barcodes are a great tool for accelerated species identification and for complementing species delimitation. Furthermore, DNA barcode reference libraries are the decisive backbone feature for any metabarcoding study in biodiversity monitoring, conservation or ecology. However, in some taxa, DNA barcodes cannot be generated with published primers at a satisfying success rate and these groups will consequently be largely missing from any barcoding-based species list. Here, we provide a custom DNA barcoding forward primer for the Eurytomidae (Hymenoptera, Chalcidoidea), elevating the success rate of high-quality DNA barcodes from 33% to 88%. Eurytomidae is a severely understudied, taxonomically challenging, species-rich group of primarily parasitoid wasps. High species numbers, diverse ecological roles and widespread and common presence identify Eurytomidae as one of many crucial families in terrestrial ecosystems. It is now possible to include Eurytomidae when studying and monitoring the terrestrial fauna, highlighting that barcoding-based approaches will need to routinely use different primers to avoid biases in their data and inferences. The new DNA barcoding protocol is also a prerequisite for our integrative taxonomy study of the group, aiming at delimiting and characterising Central European species and filling the GBOL (German Barcode Of Life) DNA barcode reference library with species-named and voucher-linked sequences.
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Affiliation(s)
- Samin Jafari
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113, Bonn, GermanyLeibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113BonnGermany
| | - Björn Müller
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113, Bonn, GermanyLeibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113BonnGermany
| | - Björn Rulik
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113, Bonn, GermanyLeibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113BonnGermany
| | - Vera Rduch
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113, Bonn, GermanyLeibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113BonnGermany
| | - Ralph S. Peters
- Leibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113, Bonn, GermanyLeibniz Institute for the Analysis of Biodiversity Change (LIB), Zoological Research Museum Alexander Koenig (zfmk), Arthropoda Department, Adenauerallee 127, D-53113BonnGermany
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29
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Ebmer D, Balfanz F, Voracek T, Hering-Hagenbeck S, Pichler-Scheder C, Walochnik J, Kniha E. The Palearctic blackfly Simulium equinum (Diptera: Simuliidae) as a biting pest of captive nyala antelopes (Tragelaphus angasii). Zoo Biol 2023; 42:150-156. [PMID: 35795895 PMCID: PMC10084230 DOI: 10.1002/zoo.21719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/13/2022] [Accepted: 06/22/2022] [Indexed: 11/10/2022]
Abstract
Blackflies (Diptera: Simuliidae) are cosmopolitan nuisance pests of great economic importance as well as vectors of many pathogens. After reports of massive blackfly biting of captive nyala antelopes in the Vienna Zoo, Austria, this study aimed to identify the species causing multiple skin lesions on the antelope hosts. The Palearctic species Simulium equinum, belonging to the medically and veterinary important Wilhelmia subgenus, was identified as the most likely causative agent. Barcoding and maximum likelihood analysis supported morphological species identification and highlighted the complex phylogeny of the subgenus Wilhelmia. Our study gives first evidence of the multi-host feeding blackfly S. equinum in the Vienna Zoo, thereby raising the question whether other hosts could also be bitten on a regular basis. The preliminary results urge for further analysis of blackfly breeding sites as well as the clarification of the host spectrum to assess the medical and veterinary importance of blackflies in the Zoo.
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Affiliation(s)
- David Ebmer
- Veterinary Clinic Vienna Zoo, Vienna, Austria
| | | | | | | | | | - Julia Walochnik
- Center for Pathophysiology, Infectiology and Immunology, Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Vienna, Austria
| | - Edwin Kniha
- Center for Pathophysiology, Infectiology and Immunology, Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Vienna, Austria
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30
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Martel R, Shen ML, DeCorwin-Martin P, de Araujo LO, Juncker D. Extracellular Vesicle Antibody Microarray for Multiplexed Inner and Outer Protein Analysis. ACS Sens 2022; 7:3817-3828. [PMID: 36515500 PMCID: PMC9791990 DOI: 10.1021/acssensors.2c01750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Proteins are found both outside and inside of extracellular vesicles (EVs) and govern the properties and functions of EVs, while also constituting a signature of the cell of origin and of biological function and disease. Outer proteins on EVs can be directly bound by antibodies to either enrich EVs, or probe the expression of a protein on EVs, including in a combinatorial manner. However, co-profiling of inner proteins remains challenging. Here, we present the high-throughput, multiplexed analysis of EV inner and outer proteins (EVPio). We describe the optimization of fixation and heat-induced protein epitope retrieval for EVs, along with oligo-barcoded antibodies and branched DNA signal amplification for sensitive, multiplexed, and high-throughput assays. We captured four subpopulations of EVs from colorectal cancer (CRC) cell lines HT29 and SW403 based on EpCAM, CD9, CD63, and CD81 expression, and quantified the co-expression of eight outer [integrins (ITGs) and tetraspanins] and four inner (heat shock, endosomal, and inner leaflet) proteins. The differences in co-expression patterns were consistent with the literature and known biological function. In conclusion, EVPio analysis can simultaneously detect multiple inner and outer proteins in EVs immobilized on a surface, opening the way to extensive combinatorial protein profiles for both discovery and clinical translation.
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Affiliation(s)
- Rosalie Martel
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Molly L. Shen
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Philippe DeCorwin-Martin
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Lorenna Oliveira
Fernandes de Araujo
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - David Juncker
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada,
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31
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Monod V, Hofstetter V, Zufferey V, Viret O, Gindro K, Croll D. Quantifying Trade-Offs in the Choice of Ribosomal Barcoding Markers for Fungal Amplicon Sequencing: a Case Study on the Grapevine Trunk Mycobiome. Microbiol Spectr 2022; 10:e0251322. [PMID: 36409146 DOI: 10.1128/spectrum.02513-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The evolution of sequencing technology and multiplexing has rapidly expanded our ability to characterize fungal diversity in the environment. However, obtaining an unbiased assessment of the fungal community using ribosomal markers remains challenging. Longer amplicons were shown to improve taxonomic resolution and resolve ambiguities by reducing the risk of spurious operational taxonomic units. We examined the implications of barcoding strategies by amplifying and sequencing two ribosomal DNA fragments. We analyzed the performance of the full internal transcribed spacer (ITS) and a longer fragment including also a part of the 28S ribosomal subunit replicated on 60 grapevine trunk core samples. Grapevine trunks harbor highly diverse fungal communities with implications for disease development. Using identical handling, amplification, and sequencing procedures, we obtained higher sequencing depths for the shorter ITS amplicon. Despite the more limited access to polymorphism, the overall diversity in amplified sequence variants was higher for the shorter ITS amplicon. We detected no meaningful bias in the phylogenetic composition due to the amplicon choice across analyzed samples. Despite the increased resolution of the longer ITS-28S amplicon, the higher and more consistent yields of the shorter amplicons produced a clearer resolution of the fungal community of grapevine stem samples. Our study highlights that the choice of ribosomal amplicons should be carefully evaluated and adjusted according to specific goals. IMPORTANCE Surveying fungal communities is key to our understanding of ecological functions of diverse habitats. Fungal communities can inform about the resilience of agricultural ecosystems, risks to human health, and impacts of pathogens. Community compositions are typically analyzed using ribosomal DNA sequences. Due to technical limitations, most fungal community surveys were based on amplifying a short but highly variable fragment. Advances in sequencing technology enabled the use of longer fragments that can address some limitations of species identification. In this study, we examined the implications of choosing either a short or long ribosomal sequence fragment by replicating the analyses on 60 grapevine wood core samples. Using highly accurate long-read sequencing, we found that the shorter fragment produced substantially higher yields. The shorter fragment also revealed more sequence and species diversity. Our study highlights that the choice of ribosomal amplicons should be carefully evaluated and adjusted according to specific goals.
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Salnitska M, Solodovnikov A, Orlov I. Sampling and curation of rove beetles (Insecta, Coleoptera, Staphylinidae) for comprehensive and DNA-grade collections to enhance biodiversity exploration in Northern Eurasia. Biodivers Data J 2022; 10:e96080. [PMID: 36761535 PMCID: PMC9836449 DOI: 10.3897/bdj.10.e96080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/03/2022] [Indexed: 12/24/2022] Open
Abstract
Staphylinidae beetles form a major portion of terrestrial biodiversity globally and, in particular, in Northern Eurasia, a large area with a historically better known north temperate, subarctic and arctic biota. However, even here, rove beetles remain amongst the so-called "dark taxa" with a high fraction of taxonomically unknown lineage diversity. The propagation of DNA-based technologies in systematic entomology in recent decades has brought new opportunities for biodiversity exploration, true also for Staphylinidae. Simultaneously, new methods have revealed limitations of specimens sampled and curated by traditional practices, as existing legacy collections, whether institutional or private, unfortunately do not always qualify as a source of DNA-grade material. In addition, both legacy and newly-collected DNA-grade material of Staphylinidae remain highly biased towards Central Europe, a region with a traditionally well-developed scientific infrastructure and long-established culture for the maintenance of entomological collections. To increase the degree of biodiversity knowledge for our target organismal group across the globe, efficient sampling of DNA-grade material and, in particular, the development of comprehensive local collections in under-studied regions is highly desirable. To facilitate that, here we provide a practical guide for collecting and curation of Staphylinidae with a focus on capacity building for DNA-grade collections in Siberia and elsewhere in Northern Eurasia.
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Affiliation(s)
- Maria Salnitska
- The Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Tyumen, RussiaThe Institute of Environmental and Agricultural Biology (X-BIO), University of TyumenTyumenRussia
| | - Alexey Solodovnikov
- The Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Tyumen, RussiaThe Institute of Environmental and Agricultural Biology (X-BIO), University of TyumenTyumenRussia,Natural History Museum of Denmark, Copenhagen, DenmarkNatural History Museum of DenmarkCopenhagenDenmark
| | - Igor Orlov
- The Institute of Environmental and Agricultural Biology (X-BIO), University of Tyumen, Tyumen, RussiaThe Institute of Environmental and Agricultural Biology (X-BIO), University of TyumenTyumenRussia
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Pilgrim J. The opportunities of research parasitism: A case study using the Barcode of Life Data System (BOLD). Gigascience 2022; 11:6874524. [PMID: 36472572 PMCID: PMC9724551 DOI: 10.1093/gigascience/giac123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 08/04/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
The Barcode of Life Data System (BOLD) is primarily used to identify biological specimens based on a mitochondrial gene sequence and has been an underpinning resource for life science researchers. Importantly, curators of BOLD archive DNA extracts where possible, and also record contaminant sequences that can be made available on request. This collegial offering of samples and data led to our work describing the serendipitous discovery of new interactions between a Torix Rickettsia bacterium and their arthropod hosts and resulted in winning the 2022 Junior Research Parasite Award. A case study of this work is presented, which discusses the opportunities provided by secondary data and how careful maintenance of such large-scale repositories plays a vital role in scientific research that goes beyond obvious lines of enquiry.
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Affiliation(s)
- Jack Pilgrim
- Correspondence address. Jack Pilgrim, Biosciences Building, Crown Street, University of Liverpool, Liverpool, UK L69 7BE, UK E-mail:
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Grabner D, Doliwa A, Sworobowicz L, Wysocka A, Weigand A, Grabowski M, Mamos T, Sures B. Microsporidian diversity in the aquatic isopod Asellus aquaticus. Parasitology 2022; 149:1729-36. [PMID: 36117283 DOI: 10.1017/S003118202200124X] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We conducted a molecular survey on microsporidian diversity in different lineages (operational taxonomic units = OTUs) of Asellus aquaticus from 30 sites throughout Europe. Host body length was determined, and DNA was extracted from host tissue excluding the intestine and amplified by microsporidian-specific primers. In total, 247 A. aquaticus specimens were analysed from which 26.7% were PCR-positive for microsporidians, with significantly more infections in larger individuals. Prevalence ranged between 10 and 90%. At 9 sites, no microsporidians were detected. A significant relationship was found between the frequency of infected individuals and habitat type, as well as host OTU. The lowest proportion of infected individuals was detected in spring-habitats (8.7%, n = 46) and the highest in ponds (37.7%, n = 53). Proportion of infected individuals among host OTUs A, D and J was 31.7, 21.7 and 32.1%, respectively. No infections were detected in OTU F. Our results are, however, accompanied by a partially low sample size, as only a minimum of 5 individuals was available at a few locations. Overall, 17 different microsporidian molecular taxonomic units (MICMOTUs) were distinguished with 5 abundant isolates (found in 4–17 host individuals) while the remaining 12 MICMOTUs were “rare” and found only in 1–3 host individuals. No obvious spatio-genetic pattern could be observed. The MICMOTUs predominantly belonged to Nosematida and Enterocytozoonida. The present study shows that microsporidians in A. aquaticus are abundant and diverse but do not show obvious patterns related to host genetic lineages or geography.
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Young D, Joshi A, Huang L, Munk B, Wurzbacher C, Youssef NH, Elshahed MS, Moon CD, Ochsenreither K, Griffith GW, Callaghan TM, Sczyrba A, Lebuhn M, Flad V. Simultaneous Meta barcoding and Quantification of Neocallimastigomycetes from Environmental Samples: Insights into Community Composition and Novel Lineages. Microorganisms 2022; 10:1749. [PMID: 36144352 PMCID: PMC9504928 DOI: 10.3390/microorganisms10091749] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/16/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Anaerobic fungi from the herbivore digestive tract (Neocallimastigomycetes) are primary lignocellulose modifiers and hold promise for biotechnological applications. Their molecular detection is currently difficult due to the non-specificity of published primer pairs, which impairs evolutionary and ecological research with environmental samples. We developed and validated a Neocallimastigomycetes-specific PCR primer pair targeting the D2 region of the ribosomal large subunit suitable for screening, quantifying, and sequencing. We evaluated this primer pair in silico on sequences from all known genera, in vitro with pure cultures covering 16 of the 20 known genera, and on environmental samples with highly diverse microbiomes. The amplified region allowed phylogenetic differentiation of all known genera and most species. The amplicon is about 350 bp long, suitable for short-read high-throughput sequencing as well as qPCR assays. Sequencing of herbivore fecal samples verified the specificity of the primer pair and recovered highly diverse and so far unknown anaerobic gut fungal taxa. As the chosen barcoding region can be easily aligned and is taxonomically informative, the sequences can be used for classification and phylogenetic inferences. Several new Neocallimastigomycetes clades were obtained, some of which represent putative novel lineages such as a clade from feces of the rodent Dolichotis patagonum (mara).
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Affiliation(s)
- Diana Young
- Micro and Molecular Biology, Central Department for Quality Assurance and Analytics, Bavarian State Research Center for Agriculture, 85354 Freising, Germany
| | - Akshay Joshi
- Biocatalysis, Environment and Process Technology Unit, Life Science and Facility Management, ZHAW, 8820 Wadenswil, Switzerland
- Department of Microbiology, University of Innsbruck, A-6020 Innsbruck, Austria
| | - Liren Huang
- Center for Biotechnology (CeBiTec), University of Bielefeld, 33615 Bielefeld, Germany
| | - Bernhard Munk
- Chair of Urban Water Systems Engineering, Technical University of Munich (TUM), 85748 Garching, Germany
| | - Christian Wurzbacher
- Chair of Urban Water Systems Engineering, Technical University of Munich (TUM), 85748 Garching, Germany
| | - Noha H. Youssef
- Department of Microbiology and Molecular Genetics (OSU), Oklahoma State University, Stillwater, OK 74074, USA
| | - Mostafa S. Elshahed
- Department of Microbiology and Molecular Genetics (OSU), Oklahoma State University, Stillwater, OK 74074, USA
| | - Christina D. Moon
- AgResearch, Grasslands Research Centre, Palmerston North 4442, New Zealand
| | - Katrin Ochsenreither
- Process Engineering in Life Sciences 2: Technical Biology (KIT), Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Gareth W. Griffith
- Department of Life Sciences (DoLS), Aberystwyth University, Aberystwyth SY23 3DD, Wales, UK
| | | | - Alexander Sczyrba
- Center for Biotechnology (CeBiTec), University of Bielefeld, 33615 Bielefeld, Germany
| | - Michael Lebuhn
- Micro and Molecular Biology, Central Department for Quality Assurance and Analytics, Bavarian State Research Center for Agriculture, 85354 Freising, Germany
| | - Veronika Flad
- Micro and Molecular Biology, Central Department for Quality Assurance and Analytics, Bavarian State Research Center for Agriculture, 85354 Freising, Germany
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DiSalvo M, Cortés-Llanos B, LaBelle CA, Murdoch DM, Allbritton NL. Scalable Additive Construction of Arrayed Microstructures with Encoded Properties for Bioimaging. Micromachines (Basel) 2022; 13:1392. [PMID: 36144015 PMCID: PMC9500771 DOI: 10.3390/mi13091392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Microarrays are essential components of analytical instruments. The elements of microarrays may be imbued with additional functionalities and encodings using composite materials and structures, but traditional microfabrication methods present substantial barriers to fabrication, design, and scalability. In this work, a tool-free technique was reported to additively batch-construct micromolded, composite, and arrayed microstructures. The method required only a compatible carrier fluid to deposit a material onto a substrate with some topography. Permutations of this basic fabrication approach were leveraged to gain control over the volumes and positions of deposited materials within the microstructures. As a proof of concept, cell micro-carrier arrays were constructed to demonstrate a range of designs, compositions, functionalities, and applications for composite microstructures. This approach is envisioned to enable the fabrication of complex composite biological and synthetic microelements for biosensing, cellular analysis, and biochemical screening.
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Affiliation(s)
- Matthew DiSalvo
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Belén Cortés-Llanos
- Department of Bioengineering, University of Washington, Seattle, WA 98105, USA
- Department of Medicine, Duke University Medical Center, Durham, NC 27705, USA
| | - Cody A. LaBelle
- Department of Bioengineering, University of Washington, Seattle, WA 98105, USA
| | - David M. Murdoch
- Department of Medicine, Duke University Medical Center, Durham, NC 27705, USA
| | - Nancy L. Allbritton
- Department of Bioengineering, University of Washington, Seattle, WA 98105, USA
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37
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Schallenberg VM, Heim R, Schneppat UE, Müller P, Rüetschi J, Neubert E. Revision of the family Milacidae from Switzerland (Mollusca, Eupulmonata, Parmacelloidea). Zookeys 2022; 1116:149-179. [PMID: 36760985 PMCID: PMC9848794 DOI: 10.3897/zookeys.1116.82762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 07/08/2022] [Indexed: 11/12/2022] Open
Abstract
In this work, the presence of species of the slug family Milacidae in Switzerland was investigated by using the barcoding marker cytochrome c oxidase subunit I (COI) as well as traits of the body and the genital organs. Currently, three species of Tandonia living in Switzerland in established populations could be reported, i.e., T.rustica, T.budapestensis, and T.nigra. The three records of Milaxgagates were re-investigated, but only for one of these records could the identification be reconfirmed. This species has currently no established and thriving population in Switzerland. For all species recorded, detailed descriptions of body morphology, genital anatomy, and distribution data are provided based on the investigated Swiss animals. An unknown pale colour morph of a Tandonia sp. from Canton Ticino could be identified as T.nigra, and the barcodes of T.nigra specimens were submitted to GenBank for the first time. The identity of the Italian and Austrian populations of T.nigra from the Bergamasque Alps and north Tirol is evaluated. Observations on details of the morphology of the genital organs in T.rustica vs. T.kusceri are discussed.
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Affiliation(s)
- Vivianne M. Schallenberg
- Natural History Museum Bern, Bernastrasse 15, CH-3005 Bern, Switzerland,Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
| | - René Heim
- St.-Karli-Strasse 32c, CH-6004 Lucerne, Switzerland
| | | | - Peter Müller
- Sennereiweg 8, CH-7074 Churwalden-Malix, Switzerland
| | | | - Eike Neubert
- Natural History Museum Bern, Bernastrasse 15, CH-3005 Bern, Switzerland,Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
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38
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Pekmezci GZ, Yildirim A, Duzlu O, Simsek E, Balta F, Yardimci B, Onuk EE, Onder Z, Ciloglu A, Yetismis G, Yilmaz E, Inci A. Genetic diversity of Ichthyophthirius multifiliis (Fouquet, 1876) infecting farmed rainbow trout (Oncorhynchus mykiss Walbaum, 1792) in Turkey. J Fish Dis 2022; 45:1109-1115. [PMID: 35485289 DOI: 10.1111/jfd.13633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
We assessed genetic diversities among Ichthyophthirius multifiliis (Ich) field isolates collected from farmed rainbow trout (Oncorhynchus mykiss) in Turkey. The overall prevalence of Ich was 35.3% (634/1798). Five novel Ich genotypes (ImulTR1 and ImulTR3-ImulTR6) were described based on mitochondrial cox-1 and nad1_b genes. The remaining genotype ImulTR2 was identical to the previously reported NY3 (or Ark9 and TW7) genotype from the United States and South Asia. Phylogenetic analysis indicated Turkish Ich isolates separated genetically into at least four distinct groups. Our study presents the first data on the genotypes of Ich in Turkey. We also provide evidence for the wide distribution of the NY3 genotype (or Ark9 and TW7) from the United States and South Asia to Turkey. Genetic diversities within the mitochondrial genes provided adequate resolution for describing novel genotypes and identifying the known genotype within Turkish Ich isolates. Description of the Ich genotypes allows for tracking of pathogen genotypes worldwide. Thus, we can better understand the connections between Ich outbreaks in the fisheries aquaculture.
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Affiliation(s)
- Gokmen Zafer Pekmezci
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Alparslan Yildirim
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Onder Duzlu
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Emrah Simsek
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Fikri Balta
- Faculty of Fisheries, University of Recep Tayyip Erdoğan, Rize, Turkey
| | - Banu Yardimci
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Ertan Emek Onuk
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Zuhal Onder
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Arif Ciloglu
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Gamze Yetismis
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Erdal Yilmaz
- Department of Aquatic Animal Diseases, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
| | - Abdullah Inci
- Department of Parasitology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
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Vasilita C, Moser M, Krogmann L. Mission possible: an optimised protocol for the unbarcodable Ceraphronoidea (Hymenoptera). Biodivers Data J 2022; 10:e84860. [PMID: 36761532 PMCID: PMC9848487 DOI: 10.3897/bdj.10.e84860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/17/2022] [Indexed: 11/12/2022] Open
Abstract
DNA barcodes provide a reliable and efficient solution to resolving cryptic species complexes and accelerate species discoveries. The superfamily Ceraphronoidea (Hymenoptera) is a group of parasitoid wasps for which a barcoding approach could be of great help, if it were not for the very poor results. The inability to obtain barcodes for the majority of treated ceraphronoids halts progress on the taxonomy of this hyperdiverse parasitoid group. We here present a working protocol for the barcoding of ceraphronoid wasps which yields a first-time over 90% success rate.
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Affiliation(s)
- Cristina Vasilita
- State Museum of Natural History, Stuttgart, GermanyState Museum of Natural HistoryStuttgartGermany
| | - Marina Moser
- State Museum of Natural History, Stuttgart, GermanyState Museum of Natural HistoryStuttgartGermany,University of Hohenheim, Stuttgart, GermanyUniversity of HohenheimStuttgartGermany
| | - Lars Krogmann
- State Museum of Natural History, Stuttgart, GermanyState Museum of Natural HistoryStuttgartGermany,University of Hohenheim, Stuttgart, GermanyUniversity of HohenheimStuttgartGermany
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40
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Weber T, Metzler L, Fosso Tene PL, Brandstetter T, Rühe J. Single-Color Barcoding for Multiplexed Hydrogel Bead-Based Immunoassays. ACS Appl Mater Interfaces 2022; 14:25147-25154. [PMID: 35617151 PMCID: PMC9185679 DOI: 10.1021/acsami.2c04361] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/06/2022] [Indexed: 05/30/2023]
Abstract
Current developments in precision medicine require the simultaneous detection of an increasing number of biomarkers in heterogeneous, complex solutions, such as blood samples. To meet this need, immunoassays on barcoded hydrogel beads have been proposed, although the encoding and decoding of these barcodes is usually complex and/or resource-intensive. Herein, an efficient method for the fabrication of barcoded, functionalized hydrogel beads is presented. The hydrogel beads are generated using droplet-based microfluidics in combination with photochemically induced C-H insertion reactions, allowing photo-crosslinking, (bio-) functionalization, and barcode integration to be performed in a single step. The generated functionalized beads carry single-color barcodes consisting of green-fluorescent particles of different sizes and concentrations, allowing simple and simultaneous readout with a standard plate reader. As a test example, the performance of barcoded hydrogel beads (3 × 3 matrix) functionalized with capture molecules of interest (e.g., antigens) is investigated for the detection of Lyme-disease-specific antibodies in patient sera. The described barcoding strategy for hydrogel beads does not interfere with the bioanalytical process and captivates by its simplicity and versatility, making it an attractive candidate for multiplex bioanalytical processes.
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41
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Lichtner V, Dowding D. Mindful Workarounds in Bar Code Medication Administration. Stud Health Technol Inform 2022; 294:740-744. [PMID: 35612195 DOI: 10.3233/shti220575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bar-Coded Medication Administration systems (BCMA) are often used with workarounds. These workarounds are usually judged against standard operating procedures or the use of the technology as 'designers' intended'. However, some workarounds may be reasonable and justified to prevent safety errors. In this conceptual paper, we clarify BCMA safety mechanisms and provide a framework to identify workarounds with BCMA that nullify the error prevention mechanisms inherent in the technology design and process. We also highlight the importance of understanding the purpose behind a nurse's workaround in BCMA, focusing on the notion of mindful (thoughtful) workarounds that have the potential to improve patient safety.
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Affiliation(s)
| | - Dawn Dowding
- School of Health Sciences, University of Manchester, UK
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42
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Rodriguez AK, Krug PJ. Ecological speciation by sympatric host shifts in a clade of herbivorous sea slugs, with introgression and localized mitochondrial capture between species. Mol Phylogenet Evol 2022; 174:107523. [PMID: 35589054 DOI: 10.1016/j.ympev.2022.107523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/30/2022] [Accepted: 05/06/2022] [Indexed: 11/25/2022]
Abstract
Host shifting in insect-plant systems was historically important to the development of ecological speciation theory, yet surprisingly few studies have examined whether host shifting drives diversification of marine herbivores. When small-bodied consumers feed and also mate on a preferred host, disruptive selection can split a population into host races despite gene flow. Support for host shifts is notably lacking for invertebrates associated with macroalgae, where the scale of dispersal by planktonic larvae often far exceeds the grain of host patchiness, and adults are typically less specialized than terrestrial herbivores. Here, we present a candidate example of ecological speciation in a clade of sea slugs that primarily consume green algae in the genus Caulerpa, including highly invasive species. Ancestral character state reconstructions supported 'sea grapes' (C. racemosa, C. lentillifera) as the ancestral host for a tropical radiation of 12 Elysia spp., with one shift onto alternative Caulerpa spp. in the Indo-Pacific. A Caribbean radiation of three species included symaptric host shifts to Rhipocephalus brevicaulis in the ancestor of E. pratensis Ortea & Espinosa, 1996, and to C. prolifera in E. hamanni Krug, Vendetti & Valdes 2016, plus a niche expansion to a range of Caulerpa spp. in E. subornata Verrill, 1901. All three species are broadly sympatric across the Caribbean but are host-partitioned at a fine grain, and distinct by morphology and at nuclear loci. However, non-recombining mtDNA revealed a history of gene flow between E. pratensis and E. subornata: COI haplotypes from E. subornata were 10.4% divergent from E. pratensis haplotypes from four sites, but closely related to all E. pratensis haplotypes sampled from six Bahamian islands, indicating historical introgression and localized "mitochondrial capture." Disruptive selective likely fueled divergence and adaptation to distinct host environments, indicating ecological speciation may be an under-appreciated driver of diversification for marine herbivores as well as epibionts and other resource specialists.
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Affiliation(s)
- Albert K Rodriguez
- Department of Biological Sciences, California State University, Los Angeles, CA 90032-8201, U.S.A
| | - Patrick J Krug
- Department of Biological Sciences, California State University, Los Angeles, CA 90032-8201, U.S.A.
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Abouabdallah MA, Peyrard N, Franc A. Does clustering of DNA barcodes agree with botanical classification directly at high taxonomic levels? Trees in French Guiana as a case study. Mol Ecol Resour 2022; 22:1746-1761. [PMID: 34995403 DOI: 10.1111/1755-0998.13579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 12/16/2021] [Indexed: 11/29/2022]
Abstract
Characterising biodiversity is one of the main challenges for the coming decades. Most diversity has not been morphologically described and barcoding is now complementing morphological-based taxonomy to further develop inventories. Both approaches have been cross-validated at the level of species and OTUs. However, many known species are not listed in reference databases. One path to speed up inventories using barcoding is to directly identify individuals at coarser taxonomic levels. We therefore studied in barcoding of plants whether morphological-based and molecular-based approaches are in agreement at genus, family and order levels. We used Agglomerative Hierarchical Clustering (with Ward, Complete and Single Linkage) and Stochastic Block Models (SBM), with two dissimilarity measures (Smith-Waterman scores, kmers). The agreement between morphological-based and molecular-based classifications ranges in most of the cases from good to very good at taxonomic levels above species, even though it decreases when taxonomic levels increase, or when using the tetramer-based distance. Agreement is correlated with the entropy of morphological-based classification and with the ratio of the mean within- and mean between-groups dissimilarities. The Ward method globally leads to the best agreement whereas Single Linkage can show poor behaviours. SBM provides a useful tool to test whether or not the dissimilarities are structured by the botanical groups. These results suggest that automatic clustering and group identification at taxonomic levels above species are possible in barcoding.
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Affiliation(s)
- Mohamed Anwar Abouabdallah
- BIOGECO, INRAE, Université de Bordeaux, 33612, Cestas, France.,Pleiade, EPC INRIA-INRAE-CNRS, Université de Bordeaux, 33405, Talence, France
| | - Nathalie Peyrard
- Université de Toulouse, INRAE, UR MIAT, F-31320, Castanet-Tolosan, France
| | - Alain Franc
- BIOGECO, INRAE, Université de Bordeaux, 33612, Cestas, France.,Pleiade, EPC INRIA-INRAE-CNRS, Université de Bordeaux, 33405, Talence, France
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Oehm AW, Jaeger L, Stoll A, Knubben-Schweizer G, Jaeger-Scheuerle MC. Setaria tundra in a roe deer (Capreolus capreolus) in the Donau-Ries district of Bavaria, Germany. SCHWEIZ ARCH TIERH 2022; 164:107-111. [PMID: 34983744 DOI: 10.17236/sat00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Setaria tundra is known as a common parasite of sylvatic ungulates in Northern latitudes. Although mostly considered of low pathogenicity, severe disease outbreaks and remarkable economic losses have been observed in reindeer (Rangifer tarandus tarandus). Host density and climatic factors are major drivers of the expansion of Setaria spp. facilitating their development and spread. Five adult specimens of S. tundra were retrieved from a male roe deer in Bavaria, Germany. Deoxyribonucleic acid (DNA) barcoding confirmed morphological identification. Cyclooxygenase 1 gene sequences showed 98,73-99,68 % similarity to sequences of other S. tundra specimens found in deer (Cervidae) and mosquitoes (Culicidae). The results raise awareness for the presence of S. tundra in a hitherto unkown endemic region and represent a starting point for broader investigations to understand the biology and distribution of this parasite in roe deer as well as other potential definitive hosts.
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Affiliation(s)
- A W Oehm
- Clinic for Ruminants with Ambulatory and Herd Health Services at the Center of Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Germany
| | | | - A Stoll
- Clinic for Ruminants with Ambulatory and Herd Health Services at the Center of Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Germany
| | - G Knubben-Schweizer
- Clinic for Ruminants with Ambulatory and Herd Health Services at the Center of Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Germany
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Philippe F, Dubrulle N, Marteaux B, Bonnet B, Choisy P, Berthon JY, Garnier L, Leconte N, Milesi S, Morvan PY, Saunois A, Sun JS, Weber S, Giraud N. Combining DNA Barcoding and Chemical fingerprints to authenticate Lavender raw material. Int J Cosmet Sci 2021; 44:91-102. [PMID: 34860432 PMCID: PMC9305429 DOI: 10.1111/ics.12757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/19/2021] [Accepted: 12/01/2021] [Indexed: 11/30/2022]
Abstract
Objective This study was initiated and conducted by several laboratories, 3 of the main cosmetic ingredient suppliers and 4 brands of cosmetics in France. Its objective is to show the interest and robustness of coupling chemical and genetic analyses in the identification of plant species. In this study, the Lavandula genus was used. Methods In this study, we used two analytical methods. Chemical analysis from UHPLC (ultra‐high‐performance liquid chromatography) and genetic analysis from barcoding with genetic markers. Results Eleven lavender species were selected (botanically authenticated) and analysed. The results show that three chemical compounds (coumaric acid hexoside, ferulic acid hexoside and rosmarinic acid) and three genetic markers (RbcL, trnH‐psbA and ITS) are of interest for the differentiation of species of the genus lavandula. Conclusion The results show that the combination of complementary analytical methods is a relevant system to prove the botanical identification of lavender species. This first study, carried out on a plant of interest for cosmetics, demonstrates the need for authentication using a tool combining genetic and chemical analysis as an advance over traditional investigation methods used alone, in terms of identification and authentication reliability.
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Affiliation(s)
- Florian Philippe
- DNA Gensee, 17 rue du lac saint andré, Le Bourget du Lac, 73370, France
| | - Nelly Dubrulle
- DNA Gensee, 17 rue du lac saint andré, Le Bourget du Lac, 73370, France
| | - Benjamin Marteaux
- DNA Gensee, 17 rue du lac saint andré, Le Bourget du Lac, 73370, France
| | | | | | | | | | | | | | | | | | - Jian-Sheng Sun
- Structure et Instabilite des Génomes, Muséum national d'Histoire naturelle, CNRS, INSERM, 43 rue Cuvier, Paris, 75005, France
| | | | - Nicole Giraud
- DNA Gensee, 17 rue du lac saint andré, Le Bourget du Lac, 73370, France
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Soto D, De Palmas S, Ho M, Denis V, Allen Chen C. A molecular census of early-life stage scleractinian corals in shallow and mesophotic zones. Ecol Evol 2021; 11:14573-14584. [PMID: 34765126 PMCID: PMC8571570 DOI: 10.1002/ece3.8122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 11/06/2022] Open
Abstract
The decline of coral reefs has fueled interest in determining whether mesophotic reefs can shield against disturbances and help replenish deteriorated shallower reefs. In this study, we characterized spatial (horizontal and vertical) and seasonal patterns of diversity in coral recruits from Dabaisha and Guiwan reefs at Ludao, Taiwan. Concrete blocks supporting terra-cotta tiles were placed at shallow (15m) and mesophotic (40m) depths, during 2016-2018. Half of the tiles were retrieved and replaced biannually over three 6-month surveys (short-term); the remainder retrieved at the end of the 18-month (long-term) survey. 451 recruits were located using fluorescent censusing and identified by DNA barcoding. Barcoding the mitochondrial cytochrome oxidase I (COI) gene resulted in 17 molecular operational taxonomic units (MOTUs). To obtain taxonomic resolution to the generic level, Pocillopora were phylotyped using the mitochondrial open reading frame (ORF), resolving eight MOTUs. Acropora, Isopora, and Montipora recruits were identified by the nuclear PaxC intron, yielding ten MOTUs. Overall, 35 MOTUs were generated and were comprised primarily of Pocillopora and, in fewer numbers, Acropora, Isopora, Pavona, Montipora, Stylophora, among others. 40% of MOTUs recruited solely within mesophotic reefs while 20% were shared by both depth zones. MOTUs recruiting across a broad depth distribution appear consistent with the hypothesis of mesophotic reefs acting as a refuge for shallow-water coral reefs. In contrast, Acropora and Isopora MOTUs were structured across depth zones representing an exception to this hypothesis. This research provides an imperative assessment of coral recruitment in understudied mesophotic reefs and imparts insight into the refuge hypothesis.
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Affiliation(s)
- Derek Soto
- Biodiversity ProgramTaiwan International Graduate ProgramAcademia Sinica and National Taiwan Normal UniversityTaipeiTaiwan
- Biodiversity Research CenterAcademia SinicaTaipeiTaiwan
- Department of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
| | - Stéphane De Palmas
- Biodiversity ProgramTaiwan International Graduate ProgramAcademia Sinica and National Taiwan Normal UniversityTaipeiTaiwan
- Biodiversity Research CenterAcademia SinicaTaipeiTaiwan
- Department of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
| | - Ming‐Jay Ho
- Biodiversity Research CenterAcademia SinicaTaipeiTaiwan
- Green Island Marine Research StationAcademia SinicaLudao, Taitung CountyTaiwan
| | - Vianney Denis
- Institute of OceanographyNational Taiwan UniversityTaipeiTaiwan
| | - Chaolun Allen Chen
- Biodiversity Research CenterAcademia SinicaTaipeiTaiwan
- Department of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Department of Life ScienceTung Hai UniversityTaichungTaiwan
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Nguyen DT, Ho LT, Nguyen SG. Description of a new species of the Charaeacoomani group (Coleoptera: Chrysomelidae: Galerucinae) from Vietnam with a key to species. Biodivers Data J 2021; 9:e72158. [PMID: 34690518 PMCID: PMC8484244 DOI: 10.3897/bdj.9.e72158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/19/2021] [Indexed: 11/12/2022] Open
Abstract
Background The genus Charaea Baly is distributed in the eastern Palaearctic, Himalayas, China and adjacent countries of the Oriental Region. Currently, 59 species of the genus Charaea have been recorded. The species of Charaea is characterised with a robust tubular aedeagus that terminates with a more or less distinct apical process with the Charaeacoomani group having an internal sac with long sharp lateral sclerites. Up to now, 13 species of this group have been described in the Oriental Region, four of which are found in Vietnam. New information Charaeadinhcuongi sp. nov. is described as a new species, based on specimens collected from Phu Quoc Island in southern Vietnam. Colour photographs of habitus and body details and DNA barcode sequences are presented. An identification key is provided for all Vietnamese species from the Charaeacoomani group.
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Affiliation(s)
- Dinh T Nguyen
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology Ha Noi Vietnam
| | - Loan Thi Ho
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology Ha Noi Vietnam
| | - Son Giang Nguyen
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology Ha Noi Vietnam
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Su N, Liu BB, Wang JR, Tong RC, Ren C, Chang ZY, Zhao L, Potter D, Wen J. On the Species Delimitation of the Maddenia Group of Prunus (Rosaceae): Evidence From Plastome and Nuclear Sequences and Morphology. Front Plant Sci 2021; 12:743643. [PMID: 34707629 PMCID: PMC8542774 DOI: 10.3389/fpls.2021.743643] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/06/2021] [Indexed: 05/23/2023]
Abstract
The recognition, identification, and differentiation of closely related plant species present significant and notorious challenges to taxonomists. The Maddenia group of Prunus, which comprises four to seven species, is an example of a group in which species delimitation and phylogenetic reconstruction have been difficult, due to the lack of clear morphological distinctions, limited sampling, and low informativeness of molecular evidence. Thus, the precise number of species in the group and the relationships among them remain unclear. Here, we used genome skimming to generate the DNA sequence data for 22 samples, including 17 Maddenia individuals and five outgroups in Amygdaloideae of Rosaceae, from which we assembled the plastome and 446 single-copy nuclear (SCN) genes for each sample. The phylogenetic relationships of the Maddenia group were then reconstructed using both concatenated and coalescent-based methods. We also identified eight highly variable regions and detected simple sequence repeats (SSRs) and repeat sequences in the Maddenia species plastomes. The phylogenetic analysis based on the complete plastomes strongly supported three main subclades in the Maddenia group of Prunus, while five subclades were recognized based on the nuclear tree. The phylogenetic network analysis detected six hybridization events. Integrating the nuclear and morphological evidence, we proposed to recognize five species within the Maddenia group, i.e., Prunus fujianensis, P. himalayana, P. gongshanensis, P. hypoleuca, and P. hypoxantha. Within this group, the first three species are well-supported, while the gene flow occurring throughout the Maddenia group seems to be especially frequent between P. hypoleuca and P. hypoxantha, eroding the barrier between them. The phylogenetic trees based on eight concatenated hypervariable regions had a similar topology with the complete plastomes, showing their potential as molecular markers and effective barcodes for further phylogeographic studies on Maddenia.
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Affiliation(s)
- Na Su
- College of Life Sciences, Northwest A&F University, Yangling, China
- Herbarium of Northwest A&F University, Yangling, China
| | - Bin-bin Liu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- Department of Botany, National Museum of Natural History, MRC 166, Smithsonian Institution, Washington, DC, United States
| | - Jun-ru Wang
- College of Life Sciences, Northwest A&F University, Yangling, China
- Herbarium of Northwest A&F University, Yangling, China
| | - Ru-chang Tong
- College of Life Sciences, Northwest A&F University, Yangling, China
- Herbarium of Northwest A&F University, Yangling, China
| | - Chen Ren
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Zhao-yang Chang
- College of Life Sciences, Northwest A&F University, Yangling, China
- Herbarium of Northwest A&F University, Yangling, China
| | - Liang Zhao
- College of Life Sciences, Northwest A&F University, Yangling, China
- Herbarium of Northwest A&F University, Yangling, China
| | - Daniel Potter
- Department of Plant Sciences, MS2, University of California, Davis, Davis, CA, United States
| | - Jun Wen
- Department of Botany, National Museum of Natural History, MRC 166, Smithsonian Institution, Washington, DC, United States
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Hajdari A, Pulaj B, Schmiderer C, Mala X, Wilson B, Lluga‐Rizani K, Mustafa B. A phylogenetic analysis of the wild Tulipa species (Liliaceae) of Kosovo based on plastid and nuclear DNA sequence. Adv Genet (Hoboken) 2021; 2:e202100016. [PMID: 36620432 PMCID: PMC9744470 DOI: 10.1002/ggn2.202100016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/11/2021] [Indexed: 01/11/2023]
Abstract
In Kosovo, the genus Tulipa is represented by eight taxa, most of which form a species complex surrounding Tulipa scardica. To investigate the phylogenetic relationship of these Tulipa species a Bayesian analysis was undertaken using the ITS nuclear marker and trnL-trnF, rbcL and psbA-trnH plastid markers. The resulting phylogenetic trees show that Kosovarian Tulipa species consistently group into two main clades, the subgenera Eriostemones and Tulipa. Furthermore, our analyses provide some evidence that the subspecies of Tulipa sylvestris are genetically distinguishable, however not significantly enough to support their reclassification as species. In contrast, the markers provide some novel information to reassess the species concepts of the T. scardica complex. Our data provide support for the synonymisation of Tulipa luanica and Tulipa kosovarica under the species Tulipa serbica. Resolution and sampling limitations hinder any concrete conclusion about whether Tulipa albanica and T. scardica are true species, yet our data do provide some support that these are unique taxa and therefore should continue to be treated as such until further clarification. Overall, our work shows that genetic data will be important in determining species concepts in this genus, however, even with a molecular perspective pulling apart closely related taxa can be extremely challenging.
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Affiliation(s)
- Avni Hajdari
- Department of Biology, Faculty of Mathematics and Natural ScienceUniversity of Prishtina “Hasan Prishtina”PrishtinëKosovo
| | - Bledar Pulaj
- Department of Biology, Faculty of Mathematics and Natural ScienceUniversity of Prishtina “Hasan Prishtina”PrishtinëKosovo
| | - Corinna Schmiderer
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary MedicineViennaAustria
| | | | - Brett Wilson
- Department of Plant SciencesUniversity of CambridgeCambridgeUK
| | - Kimete Lluga‐Rizani
- Department of Biology, Faculty of Mathematics and Natural ScienceUniversity of Prishtina “Hasan Prishtina”PrishtinëKosovo
| | - Behxhet Mustafa
- Department of Biology, Faculty of Mathematics and Natural ScienceUniversity of Prishtina “Hasan Prishtina”PrishtinëKosovo
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Paloi S, Mhuantong W, Luangsa-ard JJ, Kobmoo N. Using High-Throughput Amplicon Sequencing to Evaluate Intragenomic Variation and Accuracy in Species Identification of Cordyceps Species. J Fungi (Basel) 2021; 7:767. [PMID: 34575804 PMCID: PMC8467230 DOI: 10.3390/jof7090767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 12/30/2022] Open
Abstract
While recent sequencing technologies (third generation sequencing) can successfully sequence all copies of nuclear ribosomal DNA (rDNA) markers present within a genome and offer insights into the intragenomic variation of these markers, high intragenomic variation can be a source of confusion for high-throughput species identification using such technologies. High-throughput (HT) amplicon sequencing via PacBio SEQUEL I was used to evaluate the intragenomic variation of the ITS region and D1-D2 LSU domains in nine Cordyceps species, and the accuracy of such technology to identify these species based on molecular phylogenies was also assessed. PacBio sequences within strains showed variable level of intragenomic variation among the studied Cordyceps species with C. blackwelliae showing greater variation than the others. Some variants from a mix of species clustered together outside their respective species of origin, indicative of intragenomic variation that escaped concerted evolution shared between species. Proper selection of consensus sequences from HT amplicon sequencing is a challenge for interpretation of correct species identification. PacBio consensus sequences with the highest number of reads represent the major variants within a genome and gave the best results in terms of species identification.
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Affiliation(s)
| | | | | | - Noppol Kobmoo
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Development Agency (NSTDA), 113 Thailand Science Park, Phahonuyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (S.P.); (W.M.); (J.J.L.)
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