Wendell L. Roelofs

Flight Activity and Further Evidence for a Female-Produced Sex Pheromone of the Apple Leaf Midge, Dasineura mali, in Nova Scotia (2005)

Jeremy J. Heath, Aijun Zhang, Wendell L. Roelofs, Robert F. Smith

The flight activity of the apple leaf midge, Dasineura mali (Kieffer), was determined in the field and laboratory. Males and females began emerging at the onset of the photophase. In the field,...

Characterization of Z/E11- and Z9-desaturases from the obliquebanded leafroller moth, Choristoneura rosaceana (2002)

Guixia Hao, Marion O'Connor, Weitian Liu, Wendell L. Roelofs

A delta11-desaturase gene was cloned from the sex pheromone gland of the obliquebanded leafroller moth, Choristoneura rosaceana. The desaturase cDNA sequence spans 1300 nucleotides with an open...

A Δ9 desaturase gene with a different substrate specificity is responsible for the cuticular diene hydrocarbon polymorphism in Drosophila melanogaster

Dallerac, Renaud, Labeur, Carole, Jallon, Jean-Marc, Knipple, Douglas C., Roelofs, Wendell L., Wicker-Thomas, Claude

Drosophila melanogaster cuticular pheromones consist of unsaturated hydrocarbons with at least one double bond in position 7: 7 tricosene (T) in males and 7,11 heptacosadiene (HD) in females....

Cloning and functional expression of a cDNA encoding a pheromone gland-specific acyl-CoA Δ11-desaturase of the cabbage looper moth, Trichoplusia ni

Knipple, Douglas C., Rosenfield, Claire-Lise, Miller, Stuart J., Liu, Weitian, Tang, Juliet, Ma, Peter W. K., ...

Desaturation of coenzyme-A esters of saturated fatty acids is a common feature of sex pheromone biosynthetic pathways in the Lepidoptera. The enzymes that catalyze this step share several biochemical...

Gene characterized for membrane desaturase that produces (E)-11 isomers of mono- and diunsaturated fatty acids

Liu, Weitian, Jiao, Hongmei, Murray, Nancy C., O'Connor, Marion, Roelofs, Wendell L.

Moth species have evolved integral membrane desaturases that exhibit a wide diversity in substrate specificity, as well as in regiospecificity and stereospecificity of the unsaturated products. We...

Evolution of moth sex pheromones via ancestral genes

Roelofs, Wendell L., Liu, Weitian, Hao, Guixia, Jiao, Hongmei, Rooney, Alejandro P., Linn, Charles E.

Mate finding in most moth species involves long-distance signaling via female-emitted sex pheromones. There is a great diversity of pheromone structures used throughout the Lepidoptera, even among...

Molecular genetics and evolution of pheromone biosynthesis in Lepidoptera

Roelofs, Wendell L., Rooney, Alejandro P.

A great diversity of pheromone structures are used by moth species (Insecta: Lepidoptera) for long-distance mating signals. The signal/response channel seems to be narrow for each species, and a...

Regulation of pheromone biosynthesis by a brain hormone in two moth species

Tang, Juliet D., Charlton, Ralph E., Jurenka, Russell A., Wolf, Walter A., Phelan, P. Larry, Sreng, Leam, ...

Experiments were performed to characterize the action of a brain hormone on pheromone biosynthesis in female redbanded leafroller and cabbage looper moths. Results showed that the two species...

Molecular genetics and evolution of pheromone biosynthesis in Lepidoptera

Roelofs, Wendell L., Rooney, Alejandro P.

A great diversity of pheromone structures are used by moth species (Insecta: Lepidoptera) for long-distance mating signals. The signal/response channel seems to be narrow for each species, and a...

Characterization of Z/E11- and Z9-desaturases from the obliquebanded leafroller moth, Choristoneura rosaceana

Hao, Guixia, O'Connor, Marion, Liu, Weitian, Roelofs, Wendell L

A ▵11-desaturase gene was cloned from the sex pheromone gland of the obliquebanded leafroller moth, Choristoneura rosaceana. The desaturase cDNA sequence spans 1300 nucleotides with an open reading...

Postzygotic isolating factor in sympatric speciation in Rhagoletis flies: Reduced response of hybrids to parental host-fruit odors

Linn, Charles E., Dambroski, Hattie R., Feder, Jeffrey L., Berlocher, Stewart H., Nojima, Satoshi, Roelofs, Wendell L.

Rhagoletis pomonella is a model for sympatric speciation (divergence without geographic isolation) by means of host-plant shifts. Many Rhagoletis species are known to use fruit odor as a key...

A Δ9 desaturase gene with a different substrate specificity is responsible for the cuticular diene hydrocarbon polymorphism in Drosophila melanogaster

Dallerac, Renaud, Labeur, Carole, Jallon, Jean-Marc, Knipple, Douglas C., Roelofs, Wendell L., Wicker-Thomas, Claude

Drosophila melanogaster cuticular pheromones consist of unsaturated hydrocarbons with at least one double bond in position 7: 7 tricosene (T) in males and 7,11 heptacosadiene (HD) in females....

Cloning and functional expression of a cDNA encoding a pheromone gland-specific acyl-CoA Δ11-desaturase of the cabbage looper moth, Trichoplusia ni

Knipple, Douglas C., Rosenfield, Claire-Lise, Miller, Stuart J., Liu, Weitian, Tang, Juliet, Ma, Peter W. K., ...

Desaturation of coenzyme-A esters of saturated fatty acids is a common feature of sex pheromone biosynthetic pathways in the Lepidoptera. The enzymes that catalyze this step share several biochemical...

Gene characterized for membrane desaturase that produces (E)-11 isomers of mono- and diunsaturated fatty acids

Liu, Weitian, Jiao, Hongmei, Murray, Nancy C., O'Connor, Marion, Roelofs, Wendell L.

Moth species have evolved integral membrane desaturases that exhibit a wide diversity in substrate specificity, as well as in regiospecificity and stereospecificity of the unsaturated products. We...

Evolution of moth sex pheromones via ancestral genes

Roelofs, Wendell L., Liu, Weitian, Hao, Guixia, Jiao, Hongmei, Rooney, Alejandro P., Linn, Charles E.

Mate finding in most moth species involves long-distance signaling via female-emitted sex pheromones. There is a great diversity of pheromone structures used throughout the Lepidoptera, even among...

Molecular genetics and evolution of pheromone biosynthesis in Lepidoptera

Roelofs, Wendell L., Rooney, Alejandro P.

A great diversity of pheromone structures are used by moth species (Insecta: Lepidoptera) for long-distance mating signals. The signal/response channel seems to be narrow for each species, and a...

Regulation of pheromone biosynthesis by a brain hormone in two moth species

Tang, Juliet D., Charlton, Ralph E., Jurenka, Russell A., Wolf, Walter A., Phelan, P. Larry, Sreng, Leam, ...

Experiments were performed to characterize the action of a brain hormone on pheromone biosynthesis in female redbanded leafroller and cabbage looper moths. Results showed that the two species...

Molecular genetics and evolution of pheromone biosynthesis in Lepidoptera

Roelofs, Wendell L., Rooney, Alejandro P.

A great diversity of pheromone structures are used by moth species (Insecta: Lepidoptera) for long-distance mating signals. The signal/response channel seems to be narrow for each species, and a...

Characterization of Z/E11- and Z9-desaturases from the obliquebanded leafroller moth, Choristoneura rosaceana

Hao, Guixia, O'Connor, Marion, Liu, Weitian, Roelofs, Wendell L

A ▵11-desaturase gene was cloned from the sex pheromone gland of the obliquebanded leafroller moth, Choristoneura rosaceana. The desaturase cDNA sequence spans 1300 nucleotides with an open reading...

Postzygotic isolating factor in sympatric speciation in Rhagoletis flies: Reduced response of hybrids to parental host-fruit odors

Linn, Charles E., Dambroski, Hattie R., Feder, Jeffrey L., Berlocher, Stewart H., Nojima, Satoshi, Roelofs, Wendell L.

Rhagoletis pomonella is a model for sympatric speciation (divergence without geographic isolation) by means of host-plant shifts. Many Rhagoletis species are known to use fruit odor as a key...

Novel sex pheromone desaturases in the genomes of corn borers generated through gene duplication and retroposon fusion

Xue, Bingye, Rooney, Alejandro P., Kajikawa, Masaki, Okada, Norihiro, Roelofs, Wendell L.

The biosynthesis of female moth sex pheromone blends is controlled by a number of different enzymes, many of which are encoded by members of multigene families. One such multigene family, the...