18 results found
    1. Evolutionary Biology

    The need for high-quality oocyte mitochondria at extreme ploidy dictates mammalian germline development

    Marco Colnaghi et al.
    Selective transfer of mitochondria in the Balbiani body ensures high-quality oocyte mitochondria at extreme ploidy, explaining many enigmatic features of female germline architecture including germ cell loss.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Multi-Level Selection: The perils of cheating

    M Florencia Camus
    Experiments on mitochondrial DNA in worms highlight that cheating does not always pay off.
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    1. Evolutionary Biology
    2. Genetics and Genomics

    Nutrient status shapes selfish mitochondrial genome dynamics across different levels of selection

    Bryan L Gitschlag et al.
    Food supply and nutrient stress tolerance coordinately shape the multilevel selection dynamics of a mitochondrial cheater by promoting cheater persistence at both within-host and between-host levels of selection.
    1. Cell Biology
    2. Developmental Biology

    Maternal spindle transfer overcomes embryo developmental arrest caused by ooplasmic defects in mice

    Nuno Costa-Borges et al.
    Maternal spindle transfer is a feasible approach to enhance embryonic developmental of compromised oocytes, which can represent a new strategy for patients with forms of infertility refractory to current treatments.
    1. Cancer Biology
    2. Microbiology and Infectious Disease

    A single clonal lineage of transmissible cancer identified in two marine mussel species in South America and Europe

    Marisa A Yonemitsu et al.
    A transmissible cancer that arose in a marine mussel spread from a single animal to become a global pathogen affecting two other mussel species in both Europe and South America.
    1. Developmental Biology

    Electron transport chain biogenesis activated by a JNK-insulin-Myc relay primes mitochondrial inheritance in Drosophila

    Zong-Heng Wang et al.
    An insulin-Myc feed-forward loop triggered by transient JNK boosts transcription of genes essential for mitochondrial respiration and biogenesis during early oogenesis to support massive mtDNA replication and inheritance in Drosophila.
    1. Genetics and Genomics

    Introduction of a male-harming mitochondrial haplotype via ‘Trojan Females’ achieves population suppression in fruit flies

    Jonci Nikolai Wolff et al.
    Mitochondrial genomes harbor male-fertility-reducing mutations that can be harnessed to control population viability as a novel approach to control economic and environmental pests.
    1. Cancer Biology

    Horizontal transfer of whole mitochondria restores tumorigenic potential in mitochondrial DNA-deficient cancer cells

    Lan-Feng Dong et al.
    A genetic approach documents that mitochondrial DNA moves from donor cells to recipient mtDNA-depleted cells in whole mitochondria and that this restores mitochondrial respiration and the capacity of the cells to form tumours.
    1. Cell Biology

    Elimination of paternal mitochondria in mouse embryos occurs through autophagic degradation dependent on PARKIN and MUL1

    Rebecca Rojansky et al.
    The uniparental inheritance of mammalian mitochondria results from elimination of paternal mitochondria by a mitophagic process that requires the E3 ubiquitin ligases PARKIN and MUL1.
    1. Cell Biology
    2. Genetics and Genomics

    A mitochondrial DNA hypomorph of cytochrome oxidase specifically impairs male fertility in Drosophila melanogaster

    Maulik R Patel et al.
    A 'male-harming' mtDNA mutation has been identified in Drosophila and impairs male fertility without impairing other male or female functions.

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