10.5061/DRYAD.434PP11Q
Daukšte, Janina
Daugavpils University
Kivleniece, Inese
Daugavpils University
Krama, Tatjana
Daugavpils University
Rantala, Markus J.
University of Turku
Krams, Indrikis
Data from: Senescence in immune priming and attractiveness in a beetle
Dryad
dataset
2012
Evolution of ageing
Host-parasite interaction
Evolutionary physiology
Tenebrio molitor
2012-03-30T16:38:42Z
2012-03-30T16:38:42Z
en
https://doi.org/10.1111/j.1420-9101.2012.02516.x
11693 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Age-related decline in immune activity is referred to as immunosenescence
and has been observed for both the adaptive immune response of vertebrates
and the innate immune system of invertebrates. Since maintaining a basic
level of immune defence and mounting an immune response is costly, optimal
investment in immune function should vary over a wide range of individual
states such as the individual’s age. In this study we tested whether the
immune response and immunological priming within individuals become less
efficient with age using mealworm beetles, Tenebrio molitor, as a model
organism. We also tested whether aging and immunological priming affected
the odours produced by males. We found that young males of T.molitor were
capable of mounting an immune response a sterile nylon monofilament
implant with the potential to exhibit a simple form of immune memory
through mechanisms of immune priming. Older males did not increase their
immune response to a second immune challenge, which negatively affected
their sexual attractiveness and remaining life span. Our results indicate
that the immune system of older males in T.molitor is less effective,
suggesting complex evolutionary trade-offs between ageing, immune response
and sexual attractiveness.
Senescence of immunity in Tenebrio molitor - J Evol BiolThis excel file
contains the data on encapsulation response of young and old males and
their attractiveness. The attractiveness was measured as the total time
females spent (s) and number of visits of females on pheromone discs of
the males.
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