1. Plants

    Dawn of the Y: Papaya—Glimpse of early sex chromosome

    Genetic mappers say that the papaya plant has a rudimentary Y chromosome, the youngest one in evolutionary terms yet found, offering a glimpse of the evolution of sex chromosomes.

  2. Plants

    Sweet Lurkers: Cryptic fungi protect chocolate-tree leaves

    A whole world of fungi thrives inside tree leaves without causing any harm, and researchers now say these residents may help fight disease.

  3. Plants

    Warm-Blooded Plants?

    Research heats up on why some flowers have the chemistry to keep themselves warm.

  4. Plants

    Micro Sculptors

    Snippets of RNA that control biochemical reactions by squelching the creation of specific proteins play a role in the development of leaves.

  5. Plants

    Bean plants punish microbial partners

    In a novel test of how partnerships between species can last in nature, researchers have found that soybeans punish cheaters.

  6. Plants

    Glitch splits hermaphrodite flowers

    In a newly proposed scenario, polyploidy may trigger perfectly good hermaphrodite plants to evolve gender forms.

  7. Plants

    Next loosestrife is already loose

    A Florida botanist warns against Nymphoides cristata and Rotala rotundifolia, very troublesome escapees from aquariums and water gardens.

  8. Plants

    Misunderstood stripes confuse individuality

    In the debate over how many fungi make up one lichen body, a researcher argues for two unrelated fungal species in the same lichen.

  9. Plants

    Everglades plant is he, then she, then he

    Sawgrass, the signature plant of the Everglades, switches genders twice during its week of blooming and thus reduces the chances of self- fertilization.

  10. Plants

    Emergency Gardening

    High-tech tissue culture is helping some ultrarare plants finally have sprouts of their own.

  11. Plants

    Stout Potatoes: Armed with a new gene, spuds fend off blight

    Splicing a gene from a blight-resistant wild potato into varieties used for consumption could lead to blight immunity for all spuds.

  12. Plants

    Crop genes diffuse in seedy ways

    A study of sugar beets in France suggests that genes may escape to wild relatives through seeds accidentally transported by humans rather than through drifting pollen.