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Lamarckian lizards: novel integration of telomere epigenetics, free radicals and innate antioxidants in condition-dependant sexual signal evolution

Grant


Scheme


  • Discovery Projects

Abstract


  • We will integrate telomeres, free radicals and signal biology into a coherent research program on the development of male ornaments and concomitant impact on male rival assessment, longevity and life time fitness in the wild. Specifically, we will research how telomere length in sires shorten under stress and how this epigenetic effect is transferred from sires to sons (possibly influenced by DNA methylation) and moderates filial status signals and success in sperm competition and cryptic female choice. In most species, humans included, females live longer than males. We examine this from a perspective of evolution of sexual dimorphism in exposure to free radicals and coevolved innate antioxidant production, such as superoxide dismutase.

Date/time Interval


  • 2011

Contributor


  • Olsson, Mats M. - Chief Investigator

Sponsor Award Id


  • DP110104266

Local Award Id


  • 11732

Contributor


  • Olsson, Mats M. - Chief Investigator

Scheme


  • Discovery Projects

Abstract


  • We will integrate telomeres, free radicals and signal biology into a coherent research program on the development of male ornaments and concomitant impact on male rival assessment, longevity and life time fitness in the wild. Specifically, we will research how telomere length in sires shorten under stress and how this epigenetic effect is transferred from sires to sons (possibly influenced by DNA methylation) and moderates filial status signals and success in sperm competition and cryptic female choice. In most species, humans included, females live longer than males. We examine this from a perspective of evolution of sexual dimorphism in exposure to free radicals and coevolved innate antioxidant production, such as superoxide dismutase.

Date/time Interval


  • 2011

Contributor


  • Olsson, Mats M. - Chief Investigator

Sponsor Award Id


  • DP110104266

Local Award Id


  • 11732

Contributor


  • Olsson, Mats M. - Chief Investigator