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Volume 2 Issue 11, November 2018

Volume 2 Issue 11

Evolution of maturity

Age at maturity in Atlantic salmon is associated with a single locus, vgll3, with sex-specific effects. During sea migration of a large salmon population, rapid evolution towards early maturity is only observed in males.

See Czorlich et al.

Image: Pekka Tuuri. Cover Design: Bethany Vukomanovic.

Editorial

  • Editorial |

    A major new report highlighting the importance of fungi to humans and natural ecosystems makes it clear that a coordinated global conservation strategy is urgently needed to ensure that their benefits may continue to be reaped.

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    Sponges are believed by many researchers to be the earliest living animal group, but there is conflicting evidence for the timing of their origin. A molecular fossil discovery supports the contention that sponges appeared very early, but starkly contradicts the body fossil record.

    • Joseph P. Botting
    • Benjamin J. Nettersheim
  • News & Views |

    Genomic gigantism in amphibians originated through a single extraordinary jump overlying otherwise gradual change; genome size variation is related to both the external environment and life history in frogs, but may not be in salamanders.

    • Rachel Lockridge Mueller
    • Elizabeth L. Jockusch
  • News & Views |

    The identification of a set of conserved genes that has had stable expression patterns over 120 million years of ant evolution provides a glimpse into the mechanisms that generate queen and worker castes in ants.

    • Sarah D. Kocher

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