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Novel roles for the corpus allatum hormone in the cost of sexual interactions in the linden bug Pyrrhocoris apterus
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SYSNO ASEP 0365258 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Novel roles for the corpus allatum hormone in the cost of sexual interactions in the linden bug Pyrrhocoris apterus Author(s) Blažková, Hana (BC-A)
Provazník, Jan (BC-A)
Hodková, Magdalena (BC-A) RIDNumber of authors 3 Source Title Journal of Insect Physiology. - : Elsevier - ISSN 0022-1910
Roč. 57, č. 4 (2011), s. 529-535Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords life-span ; mating activity ; allatectomy Subject RIV ED - Physiology R&D Projects GAP502/10/1612 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50070508 - ENTU-I, BC-A (2005-2011) UT WOS 000289388800013 DOI 10.1016/j.jinsphys.2011.02.007 Annotation The cost of sexual interactions, usually expressed as a reduction of life-span, is a fundamental but poorly understood aspect of life. According to a widely accepted view, a rise in the “pro-aging” juvenile hormone (JH) might contribute to the decrease of life span caused by sexual interactions. We tested this hypothesis using the linden bug Pyrrhocoris apterus by removing the corpus allatum (CA), the source of JH. Contrary to prediction, the decrease of life span by sexual interactions was similar in control and CA-ablated males, and was even enhanced in CA-ablated females, suggesting that the cost of sexual interactions is not mediated by enhanced levels of JH. Another unexpected finding was that the female JH is principally responsible for the sex-induced reduction in the male survival. This is the first demonstration of the effect of a female reproductive hormone on the male life span in animals. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
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