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Hlavní téma
Novel roles for the corpus allatum hormone in the cost of sexual interactions in
the linden bug Pyrrhocoris apterus
Hlavní téma v angličtině
Novel roles for the corpus allatum hormone in the cost of sexual interactions in
the linden bug Pyrrhocoris apterus
Název dle studenta
Novel roles for the corpus allatum hormone in the cost of sexual interactions in
the linden bug Pyrrhocoris apterus
Název dle studenta v angličtině
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Souběžný název
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Podnázev
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Anotace
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Anotace v angličtině
The decrease of lifespan by mating is a common, yet poorly understood occurrence. Juvenile hormone
(JH) is widely believed to mediate shortened lifespan in insect, caused by mating. In this study we tested
the role of JH in the linden bug (Pyrrhocoris apterus) by removal of the corpus allatum gland and thus the
JH source. We then proceeded to study the lifespan of mated animals vs. virgin animals. Virgin animals
without JH live longer as was expected. The effect on mated animals is however different between males
and females. Surprisingly in females, JH seems to lower the cost of mating. In males, on the other hand,
the cost of mating seems to be independent on JH levels. Another surprising conclusion is that the level
of JH in females affects the lifespan of males that mate with such females.
Klíčová slova
diapauza, juvenilni hormon, hmyz, délka života, lifespan
The decrease of lifespan by mating is a common, yet poorly understood occurrence. Juvenile hormone
(JH) is widely believed to mediate shortened lifespan in insect, caused by mating. In this study we tested
the role of JH in the linden bug (Pyrrhocoris apterus) by removal of the corpus allatum gland and thus the
JH source. We then proceeded to study the lifespan of mated animals vs. virgin animals. Virgin animals
without JH live longer as was expected. The effect on mated animals is however different between males
and females. Surprisingly in females, JH seems to lower the cost of mating. In males, on the other hand,
the cost of mating seems to be independent on JH levels. Another surprising conclusion is that the level
of JH in females affects the lifespan of males that mate with such females.
Klíčová slova
diapauza, juvenilni hormon, hmyz, délka života, lifespan