A5042809299- Advanced Optical Imaging Technologies
- Advanced Vision and Imaging
- Virtual Reality Applications and Impacts
- Hemispheric Asymmetry in Neuroscience
- Genetic diversity and population structure
- Morphological variations and asymmetry
- Augmented Reality Applications
- Computer Graphics and Visualization Techniques
- Interactive and Immersive Displays
- Fish Ecology and Management Studies
- Infrared Target Detection Methodologies
- Random lasers and scattering media
- Genetic Mapping and Diversity in Plants and Animals
- Satellite Image Processing and Photogrammetry
- Animal Behavior and Reproduction
- Image Processing Techniques and Applications
- Genetic and phenotypic traits in livestock
- Image and Video Stabilization
- Genomics and Phylogenetic Studies
- 3D Surveying and Cultural Heritage
- Advanced X-ray Imaging Techniques
- Paleontology and Evolutionary Biology
- Robotics and Sensor-Based Localization
- Identification and Quantification in Food
- Inertial Sensor and Navigation
Utsunomiya University
2018-2024
Fukui Prefectural University
2023-2024
National Institute for Basic Biology
2015-2022
Kyoto University
2011-2021
Early Manuscripts Electronic Library
2021
National Institutes of Natural Sciences
2017-2020
Japan Science and Technology Agency
2020
Funai Electric (Japan)
2009
Abstract Ipomoea is the largest genus in family Convolvulaceae. nil (Japanese morning glory) has been utilized as a model plant to study genetic basis of floricultural traits, with over 1,500 mutant lines. In present study, we have second- and third-generation-sequencing platforms, reported draft genome I. scaffold N50 2.88 Mb (contig 1.87 Mb), covering 98% 750 genome. Scaffolds 91.42% assembly are anchored 15 pseudo-chromosomes. The enabled identification cataloguing Tpn1 transposons, known...
The cerebral cortex predicts visual motion to adapt human behavior surrounding objects moving in real time. Although the underlying mechanisms are still unknown, predictive coding is one of leading theories. Predictive assumes that brain's internal models (which acquired through learning) predict world at all times and errors between prediction actual sensory input further refine models. In past year, deep neural networks based on were reported for a video machine called PredNet. If theory...
Abstract To cope with seasonal changes in the environment, organisms adapt their physiology and behavior. Although color perception varies among seasons, underlying molecular basis its physiological significance remain unclear. Here we show that dynamic plasticity phototransduction regulates medaka fish. Medaka are active exhibit clear phototaxis conditions simulating summer, but at bottom of tank fail to winter. Mate preference tests using virtual fish created computer graphics demonstrate...
Summary Early stages of ecological speciation can create populations with an ecology and reproduction timing distinct from those related populations. Landscape genetic models incorporating environmental heterogeneity population‐specific reproductive traits enable the processes population differentiation to be inferred. We investigated genome‐wide variation in ecotypic Solidago virgaurea sensu lato, a herbaceous plant inhabiting wide range habitats (woodlands, serpentine barrens alpine...
The predator-prey relationship between largemouth bass, Micropterus salmoides, and freshwater goby, Rhinogobius spp., in Lake Biwa, Japan, was examined with respect to their morphological antisymmetry (laterality). Largemouth bass gobies exhibited lateral dimorphism the height of mandible length dentary, respectively. Populations both species were composed left-developed right-developed individuals. Each predation event categorized as either cross-predation (a predator caught prey opposite...
Selective breeding for desirable traits is becoming popular in aquaculture. In Miyagi prefecture, Japan, a selectively bred population of Coho salmon (Oncorhynchus kisutch) has been established with the original, randomly maintained separately. Since they have without family records, genetic diversity within these populations remains unknown. this study, we estimated and key quantitative parameters such as heritability genomic value body size by means best linear unbiased prediction to...
Background Asymmetry in animal bodies and behavior has evolved several times, but our knowledge of their linkage is limited. Tanganyikan scale-eating cichlids have well-known antisymmetry behavior; individuals open mouths leftward (righty) or rightward (lefty), righties always attack the right flank prey, whereas lefties left. This study analyzed morphological asymmetry a characiform, Exodon paradoxus, its behavioral handedness. Methodology/Principal Findings Each eight E. paradoxus was...
Vertebrates show left-right biases in turning direction, limb usage, predator-escape response and use of sensory organs. In particular, some fishes are known to have lateral predatory behaviors corresponding their morphological antisymmetry. To reveal the effects these laterally biased on predator-prey interaction, we conducted behavioral tests events between largemouth bass, Micropterus salmoides, freshwater gobies, Rhinogobius sp., both which individuals with a well-developed left side...
The processes and mechanisms underlying lineage diversification are major topics in evolutionary biology. Eurasian goldenrod species of the Solidago virgaurea complex show remarkable morphological ecological diversity Japanese Archipelago, with ecotypic taxa well adapted to specific environments (climate, edaphic conditions disturbance regimes). is a suitable model investigate actively speciating plant groups, due its ability evolve relation environmental adaptation historical population...
The left-right asymmetry of scale-eating Tanganyikan cichlids is described as a unilateral topographical shift the quadratomandibular joints. This morphological laterality has genetic basis and therefore been used model for studying negative frequency-dependent selection resulting oscillation in frequencies two genotypes, lefty righty, population. study aims were to confirm this Perissodus microlepis Boulenger P. straeleni (Poll) evaluate an appropriate method measuring testing asymmetry....
Laterality has been studied in several vertebrates, mainly terms of brain lateralization and behavioral laterality, but morphological asymmetry not extensively investigated. Asymmetry fishes was first described scale-eating cichlids from Lake Tanganyika, the form bilateral dimorphism which some individuals, when opening their mouths, twist them to right others left. This a genetic basis, is correlated with lateralized attack behaviors. subsequently found numerous taxa various feeding habits....
The genus Asarum sect. Heterotropa (Aristolochiaceae) probably experienced rapid diversification into 62 species centred on the Japanese Archipelago and Taiwan, providing an ideal model for studying island adaptive radiation. However, resolving phylogeny of this plant group using Sanger sequencing-based approaches has been challenging. To uncover radiation history Heterotropa, we employed a phylogenomic approach double-digested RAD-seq (ddRAD-seq) to yield sufficient number phylogenetic...
Abstract Understanding how genetic variation within a foundation species determines the structure of associated communities and ecosystem processes has been an emerging frontier in ecology. Previous studies common gardens identified close links between intraspecific multispecies community structure, these findings are now being evaluated directly complex natural ecosystem. In this study, we examined to what extent genomic tree explains arthropod field, comparing with spatial, temporal...
To study the genetic structure of clonal plant populations, genotyping and genet detection using markers are necessary to assign ramets corresponding genets. Assignment is difficult as it involves setting a robust threshold distance for distinction neighbouring genets in population often genetically related. Here, we used restriction site-associated DNA sequencing (RAD-seq) rhizomatous herb, Cardamine leucantha [Brassicaceae] accurately determine natural population. We determined draft...
We have realized a new optical system to form multiple aerial images by use of thin components. The proposed is based on imaging retro-reflection (AIRR). image formed AIRR visible over wide viewing angle without using 3D glasses. In addition AIRR, we introduced technique called infinity mirror in which and half are arranged parallel virtual single light source. By combining mirror, mid-air. placing retro-reflector obliquely outside the our optics improves brightness placing.
We studied social approach behaviour in medaka fish using three-dimensional computer graphic (3DCG) animations based on the morphological features and motion characteristics obtained from real fish. This is first study which used 3DCG examined relative effects of cues medaka. Various visual stimuli, e.g., lack motion, colour, alternation shape, locomotion, body normal virtual all four (colour, motion) were reconstructed, created presented to a display. Medaka with spent long time proximity...
We measure the image resolution of aerial images formed with an AIRR (aerial imaging by retro-reflection) system. Using three different types retro-reflectors inside system, we modulation transfer function (MTF) via slanted knife edge method, showing that depends on angle incidence retro-reflector, retro-reflector's anisotropy, and image's floating distance.
Abstract Since ancient times, humans have bred several plants that we rely on today. However, little is known about the divergence of most these plants. In present study, investigated Mibuna ( Brassica rapa L. subsp. nipposinica H. Bailey), a traditional leafy vegetable in Kyoto (Japan), by combining genetic analysis and survey literature. considered to been 200 years ago from Mizuna, another Kyoto. has simple spatulate leaves, whereas Mizuna characteristic serrated leaves. The quantitative...