A5103236804- Plant and animal studies
- Fossil Insects in Amber
- Insect and Arachnid Ecology and Behavior
- Hymenoptera taxonomy and phylogeny
- Lepidoptera: Biology and Taxonomy
- Insect-Plant Interactions and Control
- Coleoptera Taxonomy and Distribution
- Study of Mite Species
- Hemiptera Insect Studies
- Genetic diversity and population structure
- Plant Diversity and Evolution
- Forest Insect Ecology and Management
- Bird parasitology and diseases
- Vector-borne infectious diseases
- Spider Taxonomy and Behavior Studies
- Freshwater macroinvertebrate diversity and ecology
- Collembola Taxonomy and Ecology Studies
- Amphibian and Reptile Biology
- Animal Ecology and Behavior Studies
- Subterranean biodiversity and taxonomy
- Phytoplasmas and Hemiptera pathogens
- Animal Behavior and Reproduction
- Parasite Biology and Host Interactions
- Insect symbiosis and bacterial influences
- Scarabaeidae Beetle Taxonomy and Biogeography
Hokkaido University
2016-2025
Sapporo Science Center
2024-2025
Graduate School USA
2024-2025
Yamanashi Research Institute
2025
Forest Research
2025
Systematic (Netherlands)
2024-2025
China Agricultural University
2013
Illinois Archaeological Survey
2004-2005
Shinshu University
1997-2004
Kyushu University
1996-2001
Insects are the most speciose group of animals, but phylogenetic relationships many major lineages remain unresolved. We inferred phylogeny insects from 1478 protein-coding genes. Phylogenomic analyses nucleotide and amino acid sequences, with site-specific or domain-specific substitution models, produced statistically robust congruent results resolving previously controversial relations hips. dated origin to Early Ordovician [~479 million years ago (Ma)], insect flight Devonian (~406 Ma),...
Hemipteroid insects (Paraneoptera), with over 10% of all known insect diversity, are a major component terrestrial and aquatic ecosystems. Previous phylogenetic analyses have not consistently resolved the relationships among hemipteroid lineages. We provide maximum likelihood-based phylogenomic taxonomically comprehensive dataset comprising sequences 2,395 single-copy, protein-coding genes for 193 samples outgroups. These yield well-supported phylogeny insects. Monophyly each three orders...
A major fraction of the diversity insects is parasitic, as herbivores, parasitoids or vertebrate ectopara sites. Understanding this requires information on origin parasitism in various insect groups. Parasitic lice (Phthiraptera) are only group which all members permanent parasites birds mammals. Lice classified into a single order but thought to be closely related to, derived from, book and bark (Psocoptera). Here, we use sequences nuclear 18S rDNA gene investigate relationships among...
The gene composition, order and structure of the mitochondrial genome are remarkably stable across bilaterian animals. Lice (Insecta: Phthiraptera) a major exception to this genomic stability in that canonical single chromosome with 37 genes found almost all other bilaterians has been lost multiple lineages favour multiple, minicircular chromosomes less than on each chromosome. Minicircular mt genomes six ten louse species examined date three types minicircles were identified: heteroplasmic...
Phylogenetic relationships among the winged orders of Polyneoptera [Blattodea, Dermaptera, Embiodea (=Embioptera), Isoptera, Mantodea, Orthoptera, Phasmatodea, Plecoptera and Zoraptera] were estimated based on morphological data selected from hindwing base structure. Cladistic analyses carried out using alone in combination with other, more general, data. Both datasets resulted similar trees recovered monophyly Polyneoptera. Deepest phylogenetic polyneopteran not confidently estimated, but...
The insect order Psocodea is a diverse lineage comprising both parasitic (Phthiraptera) and nonparasitic members (Psocoptera). extreme age ecological diversity of the group may be associated with major genomic changes, such as base compositional biases expected to affect phylogenetic inference. Divergent morphology between has also obscured origins parasitism within order. We conducted phylogenomic analysis on utilizing transcriptome genome sequencing obtain data set 2370 orthologous genes....
The Japanese species of the genus Strigiphilus Mjöberg, 1910 (Insecta: Phthiraptera: Philopteridae) are revised. Six recorded, including a new belonging to cursitans species-group: stenocephalus species, described from type host Otus bakkamoena semitorques and based on specimens originally identified reported by Uchida (1949) as rostratus (Burmeister, 1838). A lectotype for laticephalus (Uchida, 1949) (type host: Strix aluco yamadae) is designated redescribed, this louse synonymized under...
Caenis rivulorum Eaton, 1884 is widely distributed and has been reported from a wide range in the Palearctic Region.We report this species Japan for first time, five localities of Hokkaido, based on morphology molecular data.
Summary Phylogenetic relationships among three paraneopteran clades (Psocodea, Hemiptera and Thysanoptera) were analysed based on the morphology of forewing base structure. Monophyly Paraneoptera was supported by nine autapomorphies, monophyly Condylognatha (= Thysanoptera + Hemiptera) two autapo‐ morphies, five autapomorphies one autapomorphy. Thus, (Psocodea (Thysanoptera Hemiptera)) proposed to be phylogenetic within Paraneoptera. A homoplastic similarity third axillary sclerite observed...
ABSTRACT The symbiotic bacteria associated with the stomach disc, a large aggregate of bacteriocytes on ventral side midgut, human body and head lice were characterized. Molecular phylogenetic analysis 16S rRNA gene sequences showed that symbionts formed distinct well-defined clade in Gammaproteobacteria . exhibited AT-biased nucleotide composition accelerated molecular evolution. In situ hybridization revealed nymphs adult males, symbiont was localized while females, not disc but lateral...
ABSTRACT The current study focuses on a symbiotic bacterium found in the slender pigeon louse, Columbicola columbae (Insecta: Phthiraptera). Molecular phylogenetic analyses indicated that symbiont belongs to gamma subdivision of class Proteobacteria and is allied Sodalis glossinidius , secondary tsetse flies ( Glossina spp.) also primary grain weevils Sitophilus spp.). Relative-rate tests revealed C. exhibits accelerated molecular evolution comparison with fly weevil symbiont. Whole-mount...
Three species of chewing lice-Eucolpocephalum femorale (Piaget, 1880) (Amblycera: Menoponidae), Ibidoecus plataleae (Denny, 1842) (Ischnocera: Philopteridae) and Ardeicola (Linnaeus, 1758) Philopteridae)-are reported from the black-faced spoonbill (Platalea minor Temminck Schlegel, 1849) in Japan. These three louse are new records for this host. The is classified as a "Critically Endangered" IUCN Red List; although its lice known to infest other spoonbills, these endangered at population level.
For modern lineages of birds and mammals, few fossils have been found that predate the Cretaceous–Palaeogene (K–Pg) boundary. However, molecular studies using fossil calibrations shown many these existed at time. Both mammals are parasitized by obligate ectoparasitic lice (Insecta: Phthiraptera), which shared a long coevolutionary history with their hosts. Evaluating whether passed through K–Pg boundary would provide insight into radiation Using dating techniques, we demonstrate major louse...
Zoraptera are a cryptic and enigmatic group of insects. The species diversity is lower than in almost all other groups Hexapoda, but may be distinctly higher presently known. Several new were described from different regions recently. systematic placement was discussed controversially since the discovered 100 years ago. Affinities with Isoptera Psocoptera earlier studies. A sister relationship Acercaria (Psocodea, Thysanoptera, Hemiptera) proposed by W. Hennig, for first time based on...
Abstract. Lice (Insecta: Phthiraptera) have long been considered to compose a monophyletic group of insects on the basis external morphological characteristics. However, recent phylogenetic analysis 18S rDNA sequences suggested that ‘Phthiraptera’ arisen twice within order Psocoptera (booklice and barklice). The features lice are highly specialized parasitic lifestyle, convergence may be frequent for such characters. To provide further test between traditional molecular‐based hypotheses,...
Phylogenetic relationships among extant families in the suborder Trogiomorpha (Insecta: Psocodea: 'Psocoptera') were inferred from partial sequences of nuclear 18S rDNA and Histone 3 mitochondrial 16S genes. Analyses these data produced trees that largely supported traditional classification; however, monophyly infraorder Psocathropetae (= Psyllipsocidae + Prionoglarididae) was not recovered. Instead, family recovered as sister taxon to Atropetae Lepidopsocidae Trogiidae Psoquillidae),...
Acercaria display an unusually broad array of adhesive devices occurring on different parts the legs. Attachment structures all major subgroups are described and illustrated. Nineteen characters distal leg region were combined with a data matrix containing 99 additional morphological body parts. The results cladistic analysis largely congruent current hypotheses. Zoraptera not retrieved as close relatives Acercaria. monophyly entire lineage Psocodea, Phthiraptera, Hemiptera is confirmed. Our...
Three species within the genus Epeorus s. l. Eaton, viz., latifolium Uéno, 1928, E. L-nigrum Matsumura, 1931, and uenoi (Matsumura, 1933), whose types were collected from Sapporo City, Japan, neighboring areas, have been confused for a long time. In this study, intensive field sampling investigation of museum specimens revealed are indeed distinct species, while is synonym latifolium. Thus, study partially resolves taxonomic confusion surrounding Japanese latifolium-like species. However,...