3 Works

Data from: Age-dependent female responses to a male ejaculate signal alter demographic opportunities for selection

Claudia Fricke, Darrell Green, Walter E. Mills & Tracey Chapman
A central tenet of evolutionary explanations for ageing is that the strength of selection wanes with age. However, data on age-specific expression and benefits of sexually selected traits are lacking—particularly for traits subject to sexual conflict. We addressed this by using as a model the responses of Drosophila melanogaster females of different ages to receipt of sex peptide (SP), a seminal fluid protein transferred with sperm during mating. SP can mediate sexual conflict, benefitting males...

Data from: Fascicles from energy-storing tendons show an age-specific response to cyclic fatigue loading

Chavaunne T. Thorpe, Graham P. Riley, Helen L. Birch, Peter D. Clegg & Hazel R. C. Screen
Some tendons, such as the human Achilles and equine superficial digital flexor tendon (SDFT), act as energy stores, stretching and recoiling to increase efficiency during locomotion. Our previous observations of rotation in response to applied strain in SDFT fascicles suggest a helical structure, which may provide energy-storing tendons with a greater ability to extend and recoil efficiently. Despite this specialization, energy-storing tendons are prone to age-related tendinopathy. The aim of this study was to assess...

Data from: Cryptic female choice favours sperm from MHC-dissimilar males

Hanne Løvlie, Mark A. F. Gillingham, Kirsty Worley, Tommaso Pizzari, David S. Richardson & H. Lovlie
Cryptic female choice may enable polyandrous females to avoid inbreeding or bias offspring variability at key loci after mating. However, the role of these genetic benefits in cryptic female choice remains poorly understood. Female red junglefowl, Gallus gallus, bias sperm use in favour of unrelated males. Here, we experimentally investigate whether this bias is driven by relatedness per se, or by similarity at the major histocompatibility complex (MHC), genes central to vertebrate acquired immunity, where...

Registration Year

  • 2013
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Resource Types

  • Dataset
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Affiliations

  • Norwich Research Park
    3
  • University of East Anglia
    2
  • University College London
    1
  • University of London
    1
  • University of Liverpool
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  • University of Oxford
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  • Linköping University
    1