Concept

Ploïdie

Publications associées (26)

Whole genome doubling promotes tumorigenesis through loss of chromatin segregation and compartment repositioning

Whole genome doubling (WGD) events are drivers of genetic innovation across vertebrate evolution. While generally detrimental to mammalian organisms, WGDs are crucial in the development of various plants and fungi, as well as for the terminal differentiati ...

EPFL2023

Whole-genome doubling drives oncogenic loss of chromatin segregation

Elisa Oricchio, Daniele Tavernari, Natalya Katanayeva, Ruxandra-Andreea Lambuta, Juan Diaz Miyar, Giovanni Ciriello

Whole-genome doubling (WGD) is a recurrent event in human cancers and it promotes chromosomal instability and acquisition of aneuploidies(1-8). However, the three-dimensional organization of chromatin in WGD cells and its contribution to oncogenic phenotyp ...

NATURE PORTFOLIO2023

Enhancing developmental rate and quality of mouse single blastomeres into blastocysts using a microplatform

Philippe Renaud, Leila Montazeri, Hanie Kavand

The present work reports the beneficial effects of using a microplatform on the development of mouse single blastomeres (SBs) to the blastocyst stage. Development of blastocysts from SBs separated from two‐ and four‐cell stage embryos (two‐ and four‐cell S ...

2018

Detecting and Quantifying Changing Selection Intensities from Time-Sampled Polymorphism Data

Jeffrey David Jensen, Matthieu Foll, Sebastian Matuszewski, Stefan Jean Laurent, Hyunjin Shim

During his well-known debate with Fisher regarding the phenotypic dataset of Panaxia dominula, Wright suggested fluctuating selection as a potential explanation for the observed change in allele frequencies. This model has since been invoked in a number of ...

Genetics Society of America2016

Possibilities in Germ Cell Research: An Engineering Insight

Omid Mashinchian, Morteza Mahmoudi

Germ cells (GCs) are responsible for fertility and disruptions in their development or function cause infertility. However, current knowledge about the diverse mechanisms involved in GC development and function is still in its infancy. This is mainly becau ...

Elsevier Science London2015

Whole genome duplications and recruitment of ecologically relevant genes in alpine Mustards

Stéphane Joost, Kevin Leempoel, Béatrice North

Polyploid taxa represent excellent models to address the underpinnings of genome evolution and the building up of new species in heterogeneous environments. Here, we present an overview of recent works in the alpine Biscutella laevigata autopolyploid compl ...

2015

Effects of ploidy and sex-locus genotype on gene expression patterns in the fire ant Solenopsis invicta

Chitsanu Khurewathanakul, Oksana Riba Grognuz, Laurent Keller

Males in many animal species differ greatly from females in morphology, physiology and behaviour. Ants, bees and wasps have a haplodiploid mechanism of sex determination whereby unfertilized eggs become males while fertilized eggs become females. However, ...

Royal Soc2014

Multiscale Spatial Organization of RNA Polymerase in Escherichia coli

Seamus John Holden

Nucleic acid synthesis is spatially organized in many organisms. In bacteria, however, the spatial distribution of transcription remains obscure, owing largely to the diffraction limit of conventional light microscopy (200-300 nm). Here, we use photoactiva ...

Cell Press2013

A Finite Population Model of Molecular Evolution: Theory and Computation

Nisheeth Vishnoi

This article is concerned with the evolution of haploid organisms that reproduce asexually. In a seminal piece of work, Eigen and coauthors proposed the quasispecies model in an attempt to understand such an evolutionary process. Their work has impacted an ...

Mary Ann Liebert2012

Analysis of centriole elimination during C. elegans oogenesis

Pierre Gönczy, Graham Knott, Petr Strnad, Lukas von Tobel, Tamara Mikeladze-Dvali

Centrosomes are the principal microtubule organizing centers (MTOCs) of animal cells and comprise a pair of centrioles surrounded by pericentriolar material (PCM). Centriole number must be carefully regulated, notably to ensure bipolar spindle formation an ...

2012

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