181 results found
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Dynamic turnover of centromeres drives karyotype evolution in Drosophila

    Ryan Bracewell, Kamalakar Chatla ... Doris Bachtrog
    De novo formation of centromeres creates diverse karyotypes in flies and is accompanied by rapid turnover of centromere-associated satellite repeats.
    1. Genetics and Genomics

    Loss of centromere function drives karyotype evolution in closely related Malassezia species

    Sundar Ram Sankaranarayanan, Giuseppe Ianiri ... Kaustuv Sanyal
    The centromeres in Malassezia species, by breakage or inactivation, facilitate genome rearrangements that can result in varying karyotypes and contribute to the evolution of these species.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Spatial inter-centromeric interactions facilitated the emergence of evolutionary new centromeres

    Krishnendu Guin, Yao Chen ... Kaustuv Sanyal
    Proximity and homology guided inter-chromosomal translocations drive karyotype evolution.
    1. Cancer Biology
    2. Computational and Systems Biology

    Quantifying chromosomal instability from intratumoral karyotype diversity using agent-based modeling and Bayesian inference

    Andrew R Lynch, Nicholas L Arp ... Mark E Burkard
    Chromosomal instability of cancer can be quantitatively measured by phylogenetic analysis of 200 tumor cells while using evolutionary principles to account for cellular selection.
    1. Evolutionary Biology

    Free-living human cells reconfigure their chromosomes in the evolution back to uni-cellularity

    Jin Xu, Xinxin Peng ... Chung-I Wu
    Human cell lines regress to become ‘de-sexualized’ by reconfiguring to a 2:3 X/A ratio of high fitness, thus shedding light on the evolution of mammalian sex chromosomes.
    1. Evolutionary Biology

    Evolutionary footprints of a cold relic in a rapidly warming world

    Eva Wolf, Emmanuel Gaquerel ... Marcus A Koch
    Evolutionary dynamics of polyploid plants of the genus Cochlearia during past periods of rapid climate change indicate increased rates of speciation and diversification in response to pronounced glacial cycles and cold periods in particular.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Further support for aneuploidy tolerance in wild yeast and effects of dosage compensation on gene copy-number evolution

    Audrey P Gasch, James Hose ... Zhishi Wang
    Many natural isolates of budding yeast carry extra chromosome copies and show lower-than-expected expression at a subset of amplified genes, which show unique evolutionary signatures.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Mitotic fidelity requires transgenerational action of a testis-restricted HP1

    Mia T Levine, Helen M Vander Wende, Harmit S Malik
    Analysis of a spermiogenesis protein reveals a new chromatin requirement for synchrony between maternal DNA packaged in the egg and sperm-packaged paternal DNA in the first embryonic mitosis in Drosophila melanogaster.
    1. Evolutionary Biology
    Mouse illustration

    The Natural History of Model Organisms: Insights into mammalian biology from the wild house mouse Mus musculus

    Megan Phifer-Rixey, Michael W Nachman
    Studies of the house mouse Mus musculus have provided important insights into mammalian biology, and efforts to study wild house mice and to create new inbred strains from wild populations have the potential to increase its usefulness as a model system.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Efficient generation of marmoset primordial germ cell-like cells using induced pluripotent stem cells

    Yasunari Seita, Keren Cheng ... Kotaro Sasaki
    In vitro model of germline specification in marmosets established by directed differentiation of induced pluripotent stem cells, which transcriptionally resemble pre-migratory primordial germ cells in vivo.

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