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Genetics

  • The Genetic Architecture of Maize Flowering Time

    Assaying nearly one million plants reveals that maize flowering time is not controlled by a large effect at any single locus.

  • A-maize-ing Diversity

    Analysis of a new maize resource reveals that a large number of genetic loci with small effects may underlie the wide variation seen in traits such as flowering time.

  • Genetic Properties of the Maize Nested Association Mapping Population

    Outcrossing vigor in maize is most likely due to retained variability in regions around the centromeres.

  • Plant Bar Code Soon to Become Reality

    A paper published this week in the Proceedings of the National Academy of Sciences proposes two genetic sequences, or loci, taken from chloroplast genes called matK and rbcL, as the official plant "bar code," a short piece of DNA that can be used to distinguish species.

  • From Science's Online Daily News Site

    Highlights from Science's online daily news site, ScienceNOW, this week include exploding raindrops, no risk in disclosing genetic risks, an ancient climate-change puzzle, and elephants that don't always keep it in the family.

  • Knockout Rats via Embryo Microinjection of Zinc-Finger Nucleases

    Targeted gene disruption in rats paves the way for new human disease models.

  • Targeted Retrieval and Analysis of Five Neandertal mtDNA Genomes

    Targeted sequencing improves Neandertal mitochondrial DNA retrieval and reveals low diversity among individuals.

  • Sequencing Neandertal Mitochondrial Genomes by the Half-Dozen

    On page 318 of this week's issue of Science, researchers describe a new technique to decipher the entire mitochondrial genomes from five Neandertals. These genomes show relatively little genetic diversity among Neandertals scattered across Europe and Russia.

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