A5016865773- Silkworms and Sericulture Research
- Silk-based biomaterials and applications
- Insect Resistance and Genetics
- Neurobiology and Insect Physiology Research
- Insect and Arachnid Ecology and Behavior
- Viral Infectious Diseases and Gene Expression in Insects
- Insect Utilization and Effects
- Invertebrate Immune Response Mechanisms
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Insect-Plant Interactions and Control
- Animal Behavior and Reproduction
- RNA Research and Splicing
- Animal Genetics and Reproduction
- Hemiptera Insect Studies
- Plant Virus Research Studies
- Insect and Pesticide Research
- Transgenic Plants and Applications
- CRISPR and Genetic Engineering
- Copper Interconnects and Reliability
- Insect Pheromone Research and Control
- Physics of Superconductivity and Magnetism
- Monoclonal and Polyclonal Antibodies Research
- Plant Reproductive Biology
- Electronic Packaging and Soldering Technologies
- Chromosomal and Genetic Variations
Kyushu University
2016-2025
Nutrasource
2017-2021
The University of Tokyo
2007-2019
Genetic Resources Center
2016-2019
Hokkaido Agricultural Research Center
2015-2018
Tokyo University of Agriculture and Technology
2005-2010
Institute of Agrobiological Sciences
2010
Advanced Institute of Industrial Technology
2003
Tokyo University of Science
2003
The larval integument of the silkworm, Bombyx mori, is opaque because urate granules accumulate in epidermis. Although biosynthetic pathway uric acid well studied, little known about how accumulates as epidermal cells. In distinct oily (od) mutant translucent inability to construct granules. Recently, we have found that od has a genomic deletion B. mori homologue human biogenesis lysosome-related organelles complex1, subunit 2 (BLOS2) gene (BmBLOS2). Here, performed molecular and functional...
In the silkworm, Bombyx mori , W chromosome plays a dominant role in female determination. However, neither protein-coding genes nor transcripts have so far been isolated from chromosome. Instead, large amount of functional transposable elements and their remnants are accumulated on PIWI-interacting RNAs (piRNAs) 23–30-nt-long small that potentially act as sequence-specific guides for PIWI proteins to silence transposon activity animal gonads. this study, by comparing ovary- testis-derived...
In the sex-pheromone communication systems of moths, odorant receptor (Or) specificity as well higher olfactory information processing in males should be finely tuned to pheromone conspecific females. Accordingly, male preference have diversified along with diversification female sex pheromones; however, genetic mechanisms that facilitated are not understood. Here, we explored involved a drastic shift silkmoth Bombyx mori using spli mutants which genomic structure gene Bmacj6 , encodes class...
The ov (mottled translucent of Var) mutant, an oily mutant Bombyx mori, exhibits mottled skin with a varying degree transparency among individuals. By linkage analysis 2112 backcross individuals using polymorphic DNA markers, we successfully mapped 179-kb region chromosome 20 responsible for the phenotype. This contains nine predicted genes. We compared mRNA expression these genes between wild type and mutants found that one them, Bmdysb, was strikingly decreased in epidermis as well its...
This study describes the molecular phylogeny, laboratory rearing, and karyotype of a bombycid moth, Trilocha varians (F. Walker) (Lepidoptera: Bombycidae), which feeds on leaves Ficus spp. (Rosales: Moraceae). The larvae this species were collected in Taipei city, Taiwan, Ryukyu Archipelago (Ishigaki Okinawa Islands, Japan). Molecular phylogenetic analyses revealed that T. belongs to subfamily Bombycinae, thus showing close relationship domesticated silkworm Bombyx mori (L.), lepidopteran...
Abstract Background In the silkworm, Bombyx mori , femaleness is strongly controlled by female-specific W chromosome. Originally, it was presumed that chromosome encodes female-determining gene(s), accordingly called Fem . However, to date, neither nor any protein-coding gene has been identified from Instead, occupied with numerous transposon-related sequences. Interestingly, silkworm a source of female-enriched PIWI-interacting RNAs (piRNAs). piRNAs are small 23-30 nucleotides in length,...
In Bombyx mori, polar body nuclei are observed until 9 h after egg lying, however, the fate of remains unclear. To examine nuclei, we employed a mutation serosal cell pigmentation, pink-eyed white (pe). The heterozygous pe/+ (pe) females produced black cells in eggs, while pe/pe did not produce eggs. These results suggest that appearance eggs depends on genotype (pe/+ ) mother. Because had + genes laid by female, participate development and differentiate into functional (serosal cells)....