466 results found
    1. Cell Biology
    2. Developmental Biology

    Human embryo polarization requires PLC signaling to mediate trophectoderm specification

    Meng Zhu et al.
    Functional analyses of in vitro fertilized, preimplanation human embryos reveal that the first lineage segregation depends on cell polarization signaling that is regulated by Phospholipase C (PLC) activity.
    1. Evolutionary Biology
    2. Physics of Living Systems

    Evolution of irreversible somatic differentiation

    Yuanxiao Gao et al.
    Irreversible differentiation into somatic cells is evolutionarily optimal if changing cell phenotype is costly, a few somatic cells already improve the organism's performance, and the organism is large enough.
    1. Genetics and Genomics

    Utility of polygenic embryo screening for disease depends on the selection strategy

    Todd Lencz et al.
    Preimplantation screening of embryos using polygenic risk scores may substantially reduce risk for a given complex disease, but this effect depends on several quantifiable factors and raises significant ethical issues.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Variation in human herpesvirus 6B telomeric integration, excision, and transmission between tissues and individuals

    Michael L Wood et al.
    Human herpesvirus 6B can transition between telomere-integrated and free viral forms, and frequent telomere-loop-driven partial or complete viral genome excision events create mosaicism in germline carriers of inherited chromosomally integrated HHV-6B.
    1. Developmental Biology

    Y chromosome functions in mammalian spermatogenesis

    Jeremie Subrini, James Turner
    The mammalian Y chromosome has become specialised for male fertility, but exact functions of individual Y genes remain poorly understood, a knowledge gap that new approaches can bridge.
    1. Cell Biology
    2. Developmental Biology

    PRMT5 regulates ovarian follicle development by facilitating Wt1 translation

    Min Chen et al.
    PRMT5 participates in ovarian granulosa cell lineage maintenance by regulating Wt1 IRES-dependent translation.
    1. Cell Biology
    2. Plant Biology

    Members of the ELMOD protein family specify formation of distinct aperture domains on the Arabidopsis pollen surface

    Yuan Zhou et al.
    Pollen aperture patterning in Arabidopsis is controlled by members of the ELMOD protein family, whose expression levels in developing pollen lineage are tightly regulated.
    1. Evolutionary Biology
    2. Medicine

    APOE4 is associated with elevated blood lipids and lower levels of innate immune biomarkers in a tropical Amerindian subsistence population

    Angela R Garcia et al.
    The relationship between APOE genotype and disease risks may be environmentally moderated, with APOE4 being less harmful and unlikely to increase cardiometabolic risk in a physically active, energy-limited population.
    1. Developmental Biology
    2. Evolutionary Biology

    Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants

    Tetsuya Hisanaga et al.
    Gamete-derived three-amino-acid-loop-extension homeodomain proteins activate zygote development in a strikingly similar manner between basal land plants and green algae, indicating an ancestral role of these transcription factors in green plants.
    1. Developmental Biology
    2. Evolutionary Biology

    Gamete expression of TALE class HD genes activates the diploid sporophyte program in Marchantia polymorpha

    Tom Dierschke et al.
    The ancestral mechanism to activate diploid gene expression via homeodomain transcription factors was retained in liverworts, an early diverging land plant lineage, and subsequently co-opted during evolution of the diploid sporophyte body.

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