Contradicting the prejudice that endosymbiosis is a rare phenomenon, Husník and co-workers show in BMC Biology that bacterial endosymbiosis has occured several times independently during insect evolution. Rigorous phylogenetic analyses, in particular using complex models of sequence evolution and an original site removal procedure, allow this conclusion to be established after eschewing inference artefacts that usually plague the positioning of highly divergent endosymbiont genomic sequences.
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http://dx.doi.org/10.1186/1741-7007-9-91 | DOI Listing |
J Eukaryot Microbiol
January 2025
Department of Marine Biotechnology, Institute of Marine and Environmental Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA.
The class Labyrinthulomycetes constitutes a multitude of species found ubiquitously in the environment, and includes pathogens of corals, hard clams, turfgrasses, and seagrasses. Labyrinthula zosterae, the causative agent of seagrass wasting disease, has been associated with declines in seagrass coverage since the 1930s. However, pathogenic and nonpathogenic Labyrinthula spp.
View Article and Find Full Text PDFPhytoKeys
January 2025
University Museum, The University of Bergen, Postboks 7800, N-5020, Bergen, Norway The University of Bergen Bergen Norway.
Plant phylogenetics has been revolutionised in the genomic era, with target capture acting as the primary workhorse of most recent research in the new field of phylogenomics. Target capture (aka Hyb-Seq) allows researchers to sequence hundreds of genomic regions (loci) of their choosing, at relatively low cost per sample, from which to derive phylogenetically informative data. Although this highly flexible and widely applicable method has rightly earned its place as the field's standard, it does not come without its challenges.
View Article and Find Full Text PDFInsects
January 2025
MOA Key Lab of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
Kuwayama, 1908, constitutes an Old World genus of psyllids with 15 described species. Based on characters of immatures, was recently assigned to Ciriacreminae (Psyllidae). The genus is morphologically well circumscribed but species are currently difficult to identify as many descriptions lack detail and precision.
View Article and Find Full Text PDFMicroorganisms
January 2025
College of Biological Science and Food Engineering, Southwest Forestry University, Kunming 650224, China.
The species is an important plant pathogen that can cause plant diseases in grassland, leading to the degradation of grassland quality. However, the morphology of is greatly affected by environmental factors, which makes it difficult to identify its species. In addition, the pathogenic ability of different species in plants has not been fully studied.
View Article and Find Full Text PDFAntibiotics (Basel)
January 2025
Clinical Microbiology Laboratory, Miguel Servet University Hospital, 50009 Zaragoza, Spain.
: Infections caused by multidrug-resistant (MDR)bacteria pose a significant public health threat by worsening patient outcomes, contributing to hospital outbreaks, and increasing health and economic burdens. Advanced genomic tools enhance the detection of resistance genes, virulence factors, and high-risk clones, thus improving the management of MDR infections. In the Autonomous Community of Aragon, the diversity and incidence of carbapenemase-producing Enterobacteriaceae (CPE) have increased during the last years.
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