Paris Japonica
Paris Japonica - Related Videos
03:21
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.
09:58
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.
10:14
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.
14:47
Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
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Cited by 5 •
2016
MyoD is a myogenic transcription factor with a strong capacity to induce myogenic transdifferentiation of many fully differentiated non-muscle cell lines. The epigenetic mechanisms involved in this transdifferentiation are largely unknown. Here we describe a double-affinity purification method followed by mass spectrometry to exhaustively characterize MyoD partners.
08:09
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.
FAQs
Polyploidy increased genome content by adding extra sets of chromosomes to the plant’s nuclear DNA. In Paris japonica, this process worked together with the persistence of repetitive sequences and limited removal of excess DNA. Studying these combined influences helps biologists distinguish genome expansion caused by chromosome-set duplication from expansion caused by DNA accumulation and retention.
Repetitive DNA, including transposable-element sequences, can accumulate when DNA is added faster than it is eliminated. Limited DNA removal allows those sequences to persist, enlarging the genome over evolutionary time. Examining this balance in Paris japonica helps researchers evaluate how genome size reflects both processes that add genetic material and mechanisms that normally remove it.
A very large genome can alter the physical organization of chromosomes and the amount of DNA that must be copied and distributed during cell division. Paris japonica therefore provides a system for examining how genome expansion relates to chromosome behavior, developmental processes, and the cellular demands associated with maintaining and transmitting extensive nuclear DNA.
Comparisons place Paris japonica within the broader evolution of flowering-plant genomes rather than treating its size as an isolated feature. They can reveal which patterns are associated with genome expansion, which are shared across plants, and how differing genome sizes relate to chromosome organization, development, and possible biological trade-offs.
Paris japonica supports investigations into whether carrying and organizing very large amounts of DNA is associated with constraints or advantages in plant biology. Researchers can connect genome size with cell division, development, and ecological adaptation, using the species to examine how genomic expansion may influence biological performance rather than considering genome size only as a numerical trait.
Its unusually expanded genome offers a comparative context for asking how genome architecture relates to ecological adaptation. Researchers can consider whether extensive repetitive DNA, polyploidy, and retained genetic material coincide with particular developmental or ecological patterns. These studies broaden genome research beyond molecular structure by linking evolutionary genome changes with how plants respond to their environments.