scholarly journals Molecular cloning, mRNA expression and biological activity of the pheromone biosynthesis activating neuropeptide (PBAN) from the European corn borer,Ostrinia nubilalis

2017 ◽  
Vol 26 (5) ◽  
pp. 616-632 ◽  
Author(s):  
J. Fodor ◽  
G. Köblös ◽  
Á. Kákai ◽  
Z. Kárpáti ◽  
B. P. Molnár ◽  
...  
Keyword(s):  
Biological Activity ◽  
Mrna Expression ◽  
Molecular Cloning ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Pheromone Biosynthesis ◽  
Corn Borer ◽  
Pheromone Biosynthesis Activating Neuropeptide

scholarly journals Screening some Common Molecular Markers and a Desaturase Marker, Linked to Sex Pheromone Biosynthesis, in Three Z-Strain and an E-Strain Populations of the European Corn Borer, Ostrinia nubilalis, Occurring in Central Europe

2019 ◽  
Vol 54 (1) ◽  
pp. 127-136
Author(s):  
G. Bozsik ◽  
A. Lakatos ◽  
G. Szőcs ◽  
I. Tóbiás
Keyword(s):  
Sex Pheromone ◽  
Central Europe ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Nuclear Dna ◽  
Elongation Factor ◽  
Practical Interest ◽  
Fatty Acyl ◽  
Pheromone Biosynthesis ◽  
Corn Borer

The European corn borer moth, (ECB), Ostrinia nubilalis (Lepidoptera: Crambidae, Pyraustinae) is one of the most destructive pests of maize worldwide. ECB has two pheromone-strains, separated by specific ratios of isomers of E- and Z11-tetradecenyl acetates (E11- and Z11-14Ac), but appearing morphologically identical. Accordingly, E- and Z-ECB pheromone traps are available for the respective populations for practical monitoring of the flight, however, traps for Z-strain are unreliable for practical usage in some parts of Central-Europe. E- and Z-ECB populations occur in sympatry in some areas, while in allelopatry in other areas. Determining the strains before the flight of adults, when difference in the composition of their respective pheromones is manifested, would be of practical interest for early warning. In addition to the known fatty-acyl-reductase (FAR) marker, further markers would allow more comprehensive studies. We screened the following common markers for mitochondrial and nuclear DNA regions: partial cytochrome c oxidase I (COI), cytochrome B (CytB), the second spacer of the internal transcribed spacer (ITS2), Elongation factor 1a (EF1a) and actin gene (Act). In addition, a marker of the Δ11-desaturase gene (11desat), linked to biosynthesis of female-produced sex pheromone, was also included, because we reported earlier a differential expression for this site. Three Z-ECB populations locating at distant sites within Hungary, an area where only Z-strain occurs, and an E-ECB population in Slovenia, known as the closest-occurring E-strain, were included into the study. Separate laboratory colonies were established from each population, and F1 generations were sampled to verify the identity of pheromone strains, by analysing the composition of sex pheromone by gas chromatography linked to an electroantennographic detector (GC-EAD). Molecular studies were conducted using specimens taken from the F2 generations. Results of genetic studies showed that there were no differences between the Z and E populations for the common markers. In contrast to this, several nucleic acid changes (11 nt in 4 positions) were found between the three Z-populations (Hungary) and the E-population (Slovenia) in the desaturase marker. Further study is required to reveal whether the differences found in this study are consistent across E-populations, thus making these markers suitable for diagnostic purposes.

Regulation of pheromone biosynthesis in the “Z strain” of the European corn borer,Ostrinia nubilalis

2007 ◽  
Vol 65 (1) ◽  
pp. 29-38 ◽  
Author(s):  
H.S. Eltahlawy ◽  
J.S. Buckner ◽  
S.P. Foster
Keyword(s):  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Pheromone Biosynthesis ◽  
Corn Borer

Dynamics of Nosema pyrausta in natural populations of the European corn borer, Ostrinia nubilalis: A six-year study

BioControl ◽  
2006 ◽  
Vol 51 (5) ◽  
pp. 627-642 ◽  
Author(s):  
Leslie C. Lewis ◽  
Douglas V. Sumerford ◽  
Lori A. Bing ◽  
Robert D. Gunnarson
Keyword(s):  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Natural Populations ◽  
Corn Borer

Chemical composition and rumen degradability of three corn hybrids treated with insecticides against the European corn borer (Ostrinia nubilalis)

2010 ◽  
Vol 155 (1) ◽  
pp. 25-32 ◽  
Author(s):  
F. Masoero ◽  
A. Gallo ◽  
C. Zanfi ◽  
G. Giuberti ◽  
M. Spanghero
Keyword(s):  
Chemical Composition ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Corn Hybrids ◽  
Corn Borer
Sign in / Sign up

Export Citation Format

Share Document