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Epoxidation of juvenile hormone was a key innovation improving insect reproductive fitness
M. Nouzova, MJ. Edwards, V. Michalkova, CE. Ramirez, M. Ruiz, M. Areiza, M. DeGennaro, F. Fernandez-Lima, R. Feyereisen, M. Jindra, FG. Noriega
Jazyk angličtina Země Spojené státy americké
Typ dokumentu časopisecké články, Research Support, N.I.H., Extramural, práce podpořená grantem
Grantová podpora
K22 AI112585
NIAID NIH HHS - United States
R21 AI153689
NIAID NIH HHS - United States
NLK
Free Medical Journals
od 1915 do Před 6 měsíci
Freely Accessible Science Journals
od 1915 do Před 6 měsíci
PubMed Central
od 1915 do Před 6 měsíci
Europe PubMed Central
od 1915 do Před 6 měsíci
Open Access Digital Library
od 1915-01-15
Open Access Digital Library
od 1915-01-01
PubMed
34697248
DOI
10.1073/pnas.2109381118
Knihovny.cz E-zdroje
- MeSH
- Aedes enzymologie genetika MeSH
- biologická proměna MeSH
- genetická zdatnost * MeSH
- juvenilní hormony biosyntéza MeSH
- molekulární evoluce * MeSH
- nenasycené mastné kyseliny metabolismus MeSH
- rozmnožování MeSH
- seskviterpeny metabolismus MeSH
- sexuální chování zvířat MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Research Support, N.I.H., Extramural MeSH
Methyl farnesoate (MF) plays hormonal regulatory roles in crustaceans. An epoxidated form of MF, known as juvenile hormone (JH), controls metamorphosis and stimulates reproduction in insects. To address the evolutionary significance of MF epoxidation, we generated mosquitoes completely lacking either of the two enzymes that catalyze the last steps of MF/JH biosynthesis and epoxidation, respectively: the JH acid methyltransferase (JHAMT) and the P450 epoxidase CYP15 (EPOX). jhamt-/- larvae lacking both MF and JH died at the onset of metamorphosis. Strikingly, epox-/- mutants, which synthesized MF but no JH, completed the entire life cycle. While epox-/- adults were fertile, the reproductive performance of both sexes was dramatically reduced. Our results suggest that although MF can substitute for the absence of JH in mosquitoes, it is with a significant fitness cost. We propose that MF can fulfill most roles of JH, but its epoxidation to JH was a key innovation providing insects with a reproductive advantage.
Department of Biology Muhlenberg College Allentown PA 18104
Department of Chemistry and Biochemistry Florida International University Miami FL 33199
Department of Plant and Environmental Sciences University of Copenhagen Copenhagen DK 1871 Denmark
Institute of Zoology Slovak Academy of Sciences Bratislava 84506 Slovakia
Citace poskytuje Crossref.org
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- $a Methyl farnesoate (MF) plays hormonal regulatory roles in crustaceans. An epoxidated form of MF, known as juvenile hormone (JH), controls metamorphosis and stimulates reproduction in insects. To address the evolutionary significance of MF epoxidation, we generated mosquitoes completely lacking either of the two enzymes that catalyze the last steps of MF/JH biosynthesis and epoxidation, respectively: the JH acid methyltransferase (JHAMT) and the P450 epoxidase CYP15 (EPOX). jhamt-/- larvae lacking both MF and JH died at the onset of metamorphosis. Strikingly, epox-/- mutants, which synthesized MF but no JH, completed the entire life cycle. While epox-/- adults were fertile, the reproductive performance of both sexes was dramatically reduced. Our results suggest that although MF can substitute for the absence of JH in mosquitoes, it is with a significant fitness cost. We propose that MF can fulfill most roles of JH, but its epoxidation to JH was a key innovation providing insects with a reproductive advantage.
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