47 results found
    1. Evolutionary Biology
    2. Plant Biology

    An unexpected noncarpellate epigynous flower from the Jurassic of China

    Qiang Fu et al.
    Flowers did bloom in the Early Jurassic.
    1. Evolutionary Biology
    2. Plant Biology

    Natural selection and repeated patterns of molecular evolution following allopatric divergence

    Yibo Dong et al.
    The genomic architecture of allopatric species is a mosaic of many conserved genes and a few adaptive ones, reflecting balance between conservation of ancestral functions and evolution of new features.
    1. Developmental Biology
    2. Plant Biology

    Three ancient hormonal cues co-ordinate shoot branching in a moss

    Yoan Coudert et al.
    The mosses and angiosperms have independently evolved mechanisms that use the same hormones-auxin, cytokinin and strigolactone-to regulate lateral shoot branching.
    1. Cell Biology
    2. Plant Biology

    Kinetochore protein depletion underlies cytokinesis failure and somatic polyploidization in the moss Physcomitrella patens

    Elena Kozgunova et al.
    Lagging chromosomes in anaphase inhibits cytokinesis in plant cells.
    1. Biochemistry and Chemical Biology
    2. Plant Biology

    RISC-interacting clearing 3’- 5’ exoribonucleases (RICEs) degrade uridylated cleavage fragments to maintain functional RISC in Arabidopsis thaliana

    Zhonghui Zhang et al.
    AGO protein-interacting exoribonucleases clear RNA induced silencing complex (RISC)-resulting 5' cleavage products in time to recycle RISC and miRNAs.
    1. Evolutionary Biology
    2. Plant Biology

    Paleobotany: Did flowering plants exist in the Jurassic period?

    David Winship Taylor, Hongqi Li
    The discovery of a fossil that might be the oldest flowering plant will continue the debate on the origin and structure of ancestral flowering plants.
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    1. Developmental Biology
    2. Plant Biology

    Genetic analysis of the Arabidopsis TIR1/AFB auxin receptors reveals both overlapping and specialized functions

    Michael J Prigge et al.
    Genetic analyses reveal that the TIR1/AFB auxin receptors have broadly overlapping functions throughout plant development, but that the AFB1 receptor has a specialized role in a rapid auxin response.
    1. Evolutionary Biology
    2. Plant Biology

    Negative regulation of conserved RSL class I bHLH transcription factors evolved independently among land plants

    Suvi Honkanen et al.
    An ancient and conserved genetic mechanism for cell differentiation is under distinct negative regulation in different lineages of land plants.
    1. Evolutionary Biology
    2. Plant Biology

    Origin and evolution of the nuclear auxin response system

    Sumanth K Mutte et al.
    The system that controls gene expression by the plant signaling molecule auxin has deep evolutionary roots, and stepwise increases in system complexity shaped the highly diverse auxin response in land plants.
    1. Plant Biology

    LEAFY maintains apical stem cell activity during shoot development in the fern Ceratopteris richardii 

    Andrew RG Plackett et al.
    Transgenic analysis reveals a role for LEAFY in ferns that supports a trajectory from general to floral meristem-specific function as land plants evolved.

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