Dugesia Japonica

Dugesia japonica is a freshwater planarian, or free-living flatworm, widely used to study regeneration, development, and stem cell biology. Its remarkable regenerative ability depends on neoblasts, a population of proliferative stem cells that divide, produce differentiated cell types, and rebuild missing tissues after injury; the animal can also reproduce asexually through fission. Researchers use D. japonica to investigate tissue patterning, wound responses, cell differentiation, and the molecular signals that maintain body organization. Because its simple anatomy, accessible maintenance, and robust regeneration connect cellular mechanisms with whole-organism recovery, this species remains an important model in biology and regenerative research.

Dugesia Japonica - Related Videos

Research

JoVE Journal - Biology
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Pharmacological and Functional Genetic Assays to Manipulate Regeneration of the Planarian Dugesia japonica

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Cited by 17 •

2011

An attractive model for studying stem cell differentiation within a live animal is the planarian flatworm. Regeneration is studied by simple amputation experiments that are easily performed in a basic laboratory and are amenable to pharmacological and genetic (in vivo RNAi) manipulation as detailed by protocols in this article.

Research

JoVE Journal - Developmental Biology

Protocols for Efficient Rearing and Functional Analysis of the Endoparasitoid Wasp Asobara japonica and its Host Drosophila melanogaster

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2026

The goal of this protocol is to facilitate functional analysis of parasitoid-host interactions in Asobara japonica and Drosophila melanogaster through optimized rearing methods, a single-oviposition infection assay, and RNAi-mediated gene knockdown.

Microfocus X-ray CT (microCT) Imaging of Actinia equina (Cnidaria), Harmothoe sp. (Annelida), and Xenoturbella japonica (Xenacoelomorpha)

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Cited by 12 •

2019

Here, protocols for performing microfocus X-ray computed tomography (microCT) imaging of three marine invertebrate animals are explained in detail. This study describes steps such as sample fixation, staining, mounting, scanning, image reconstruction, and data analyses. Suggestions on how the protocol can be adjusted for different samples are also provided.

Education

JoVE Core - Molecular Biology

Genome Size and the Evolution of New Genes

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2020

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.

Detection of Ligand-activated G Protein-coupled Receptor Internalization by Confocal Microscopy

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Cited by 2 •

2017

This protocol describes confocal microscopy detection of G protein-coupled receptor (GPCR) internalization in mammalian cells. It includes the basic cell culture, transfection, and confocal microscopy procedure and provides an efficient and easily interpretable method to detect the subcellular localization and internalization of fusion-expressed GPCR.

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