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orange wheat blossom midge

Mulualem T Kassa, Sabrina Haas, Edgar Schliephake, Clare Lewis, Frank M You, Curtis J Pozniak, Ilona Krämer, Dragan Perovic, Andrew G Sharpe, Pierre R Fobert, Michael Koch, Ian L Wise, Paul Fenwick, Simon Berry, James Simmonds, Delphine Hourcade, Patrice Senellart, Laure Duchalais, Olivier Robert, Jutta Förster, Julian B Thomas, Wolfgang Friedt, Frank Ordon, Cristobal Uauy, Curt A McCartney
SNP markers were developed for the OWBM resistance gene Sm1 that will be useful for MAS. The wheat Sm1 region is collinear with an inverted syntenic interval in B. distachyon. Orange wheat blossom midge (OWBM, Sitodiplosis mosellana Géhin) is an important insect pest of wheat (Triticum aestivum) in many growing regions. Sm1 is the only described OWBM resistance gene and is the foundation of managing OWBM through host genetics. Sm1 was previously mapped to wheat chromosome arm 2BS relative to simple sequence repeat (SSR) markers and the dominant, sequence characterized amplified region (SCAR) marker WM1...
August 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
S Chavalle, J-P Jansen, G San Martin y Gomez, M De Proft
The orange wheat blossom midge, Sitadiplosis mosellano (Géhin) (Diptera: Cecidomyiidae), can cause severe losses in wheat grain yield and quality. This pest is known to be susceptible to many insecticides, but various field observations have suggested that some fungicides could also significantly affect S. mosellana. In order to confirm these field observations, the effect on adult midges of several fungicides commonly applied to wheat crops was investigated in the laboratory and in small plots in the field...
2015: Communications in Agricultural and Applied Biological Sciences
Sandrine Chavalle, Florence Censier, Gilles San Martin Y Gomez, Michel De Proft
BACKGROUND: In 2012 and 2013, Sitodiplosis mosellana (Géhin) flights occurred during the susceptible phase of wheat development in Belgium. The protection against this midge afforded by various insecticides was assessed in infested fields on four winter wheat cultivars (susceptible or resistant, and early or late heading). RESULTS: The insecticides sprayed at the right time reduced the number of larvae in the ears by 44-96%, depending on the product. For Julius, the cultivar (cv...
May 2015: Pest Management Science
K A Pivnick
Males of the orange wheat blossom midge,Sitodiplosis mosellana (Géhin), were attracted by female but not by male extract in a Y-tube bioassay. In laboratory mating experiments, females exhibited typical calling behavior under all conditions tested. At 19‡C in the dark, males exhibited a high frequency of wing vibration (a courtship behavior) and mating attempts, and 68% of females were mated. However, there was virtually no courtship or mating activity at 17‡C and 23‡C (0 and 11% mated, respectively); at 21‡C, there was an intermediate level (43% mated)...
August 1993: Journal of Chemical Ecology
Ya-Nan Hao, Jin Miao, Yu-Qing Wu, Zhong-Jun Gong, Yue-Li Jiang, Yun Duan, Tong Li, Wei-Ning Cheng, Jian-Xin Cui
The orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae), is a chronic wheat pest worldwide. Adult S. mosellana engage in short-distance flight, but also exploit weather patterns for long-distance dispersal. However, little is known about the flight performance of S. mosellana, and the effects of the biotic and abiotic factors that influence its flight activity. In this study, we explored the active flight potential of S. mosellana under various environmental factors using a 26-channel computer-monitored flight mill system...
October 2013: Journal of Economic Entomology
Zhong-Jun Gong, Yu-Qing Wu, Jin Miao, Yun Duan, Yue-Li Jiang, Tong Li
BACKGROUND: Many insects enter a developmental arrest (diapause) that allows them to survive harsh seasonal conditions. Despite the well-established ecological significance of diapause, the molecular basis of this crucial adaptation remains largely unresolved. Sitodiplosis mosellana (Gehin), the orange wheat blossom midge (OWBM), causes serious damage to wheat throughout the northern hemisphere, and sporadic outbreaks occur in the world. Traits related to diapause appear to be important factors contributing to their rapid spread and outbreak...
2013: PloS One
Ming-Shun Chen, Xuming Liu, Ziheng Yang, Huixian Zhao, Richard H Shukle, Jeffrey J Stuart, Scot Hulbert
BACKGROUND: In most protein-coding genes, greater sequence variation is observed in noncoding regions (introns and untranslated regions) than in coding regions due to selective constraints. During characterization of genes and transcripts encoding small secreted salivary gland proteins (SSSGPs) from the Hessian fly, we found exactly the opposite pattern of conservation in several families of genes: the non-coding regions were highly conserved, but the coding regions were highly variable...
2010: BMC Evolutionary Biology
Henriett Elek, Peter Werner, Lesley Smart, Ruth Gordon-Weeks, Miklós Nádasy, John Pickett
As an environmentally compatible alternative to the use of conventional insecticides to control cereal aphids, we have investigated the possibility to exploit natural resistance to insect pests in wheat varieties. We have tested a wide range of hexaploid (Triticum aestivum), tetraploid (T. durum) and diploid (T. boeoticum and T. monococcum) wheat lines for resistance to the bird cherry oat aphid (Rhopalosiphum padi). Lines tested included Russian wheat aphid (Diuraphis noxia), greenbug (Schizaphis graminum), hessian fly (Mayetiola destructor) and orange wheat blossom midge (Sitodiplosis mosellana) resistant varieties...
2009: Communications in Agricultural and Applied Biological Sciences
Toby J A Bruce, Antony M Hooper, Lynda Ireland, Owen T Jones, Janet L Martin, Lesley E Smart, Jon Oakley, Lester J Wadhams
Field-trapping experiments with synthetic 2,7-nonadiyl dibutyrate, the female-produced sex pheromone of the orange wheat blossom midge, Sitodiplosis mosellana (Géhin), demonstrated that pheromone traps were highly attractive to males and caught very few non-target organisms. Different formulations of pheromone were tested to identify the optimum release rate and dispenser type for use in pheromone traps in the UK. Key findings were that racemic pheromone was as effective as enantiomerically pure (2S,7R)-2,7-nonadiyl dibutyrate, that release rates higher than 0...
January 2007: Pest Management Science
Omprakash Mittapalli, Ian L Wise, Richard H Shukle
A full-length cDNA encoding a serine carboxypeptidase (designated SmSCP-1) was recovered from an ongoing salivary gland EST project of the wheat midge. The deduced 461-amino acid sequence had a putative signal sequence at the amino terminus, indicating it was a secreted protein. The protein shared homology with serine carboxypeptidases from other insects, mammals, plants, and yeasts. SmSCP-1 mRNA was expressed in all stages of development and detected in salivary gland and fat body tissues but not in midgut tissue...
February 2006: Insect Biochemistry and Molecular Biology
Daryl J Somers, Julian Thomas, Ron Depauw, Stephen Fox, Gavin Humphreys, George Fedak
Fusarium head blight of wheat is a major deterrent to wheat production world-wide. The genetics of FHB resistance in wheat are becoming clear and there is a good understanding of the genome location of FHB resistance QTL from different sources such as Sumai3, Wuhan, Nyubai and Frontana. All the components needed for assembling complex genotypes through large-scale molecular breeding experiments are now available. This experiment used high throughput microsatellite genotyping and half-seed analysis to process four independent crosses through a molecular breeding strategy to introduce multiple pest resistance genes into Canadian wheat...
November 2005: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Michael A Birkett, Toby J A Bruce, Janet L Martin, Lesley E Smart, Jon Oakley, Lester J Wadhams
Air entrainment samples of volatiles from panicles of intact wheat, Triticum aestivum, cultivar 'Lynx' were collected at the ear emergence/early anthesis growth stage. In an olfactometer bioassay, both freshly cut panicles and an air entrainment sample were found to attract female orange wheat blossom midge adults, Sitodiplosis mosellana. Coupled gas chromatography-electroantennography (GC-EAG) analyses of panicle volatiles located six electrophysiologically active components. These were identified by coupled gas chromatography-mass spectrometry and coinjection with authentic standards, on polar and nonpolar GC columns, as acetophenone, (Z)-3-hexenyl acetate, 3-carene, 2-tridecanone, 2-ethyl-1-hexanol, and 1-octen-3-ol...
July 2004: Journal of Chemical Ecology
M O Harris, J J Stuart, M Mohan, S Nair, R J Lamb, O Rohfritsch
The interactions of two economically important gall midge species, the rice gall midge and the Hessian fly, with their host plants, rice and wheat, respectively, are characterized by plant defense via R genes and insect adaptation via avr genes. The interaction of a third gall midge species, the orange wheat blossom midge, with wheat defense R genes has not yet exhibited insect adaptation. Because of the simple genetics underlying important aspects of these gall midge-grass interactions, a unique opportunity exists for integrating plant and insect molecular genetics with coevolutionary ecology...
2003: Annual Review of Entomology
E S Abdel-Aal, P Hucl, F W Sosulski, R Graf, C Gillott, L Pietrzak
The concentration of ferulic acid (FA), the major phenolic acid in the wheat kernel, was found to differ significantly in the mature grain of six wheat cultivars known to have a range of tolerance to the orange wheat blossom midge (Sitodiplosis mosellana). Differences in FA content were correlated with floret infestation level of the cultivars. The wheat cultivars ranked similarly in FA content at the four locations where they were tested, despite a significant effect of environment. Ferulic acid was synthesized mainly during the early stages of grain filling but at different rates among cultivars...
August 2001: Journal of Agricultural and Food Chemistry
R Gries, G Gries, G Khaskin, S King, O Olfert, L A Kaminski, R Lamb, R Bennett
Pheromone extract of the female orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (SM) (Diptera: Cecidomyiidae), was analyzed by coupled gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometry (MS), employing fused silica columns coated with DB-5, DB-210, DB-23 or SP-1000. These analyses revealed a single, EAD-active candidate pheromone which was identified as 2,7-nonanediyl dibutyrate. In experiments in wheat fields in Saskatchewan, traps baited with (2S,7S)-2,7-nonanediyl dibutyrate attracted significant numbers of male SM...
October 2000: Die Naturwissenschaften
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