Regulation of Isoprenoid Pheromone Biosynthesis in Bumblebee Males

0458703 - ÚOCHB 2017 RIV DE eng J - Journal Article
Prchalová, Darina - Buček, Aleš - Brabcová, Jana - Žáček, Petr - Kindl, Jiří - Valterová, Irena - Pichová, Iva
Regulation of Isoprenoid Pheromone Biosynthesis in Bumblebee Males.
Chembiochem. Roč. 17, č. 3 (2016), s. 260-267. ISSN 1439-4227. E-ISSN 1439-7633
R&D Projects: GA MŠMT LO1302; GA ČR GA15-06569S
Institutional support: RVO:61388963
Keywords : biosynthesis * Bombus spp. * gene expression * isoprenoids * pheromones * transcriptional regulation
Subject RIV: CE - Biochemistry
Impact factor: 2.847, year: 2016

Males of the closely related species Bombus terrestris and Bombus lucorum attract conspecific females by completely different marking pheromones. MP of B.terrestris and B.lucorum pheromones contain mainly isoprenoid (ISP) compounds and fatty acid derivatives, respectively. Here, we studied the regulation of ISP biosynthesis in both bumblebees. RNA-seq and qRT-PCR analyses indicated that acetoacetyl-CoA thiolase (AACT), 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR), and farnesyl diphosphate synthase (FPPS) transcripts are abundant in the B.terrestris labial gland. Maximal abundance of these transcripts correlated well with AACT enzymatic activity detected in the LG extracts. In contrast, transcript abundances of AACT, HMGR, and FPPS in B.lucorum were low, and AACT activity was not detected in LGs. These results suggest that transcriptional regulation plays a key role in the control of ISP biosynthetic gene expression and ISP pheromone biosynthesis in bumblebee males.
Permanent Link: http://hdl.handle.net/11104/0258951