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Production of pheromone by hairpencil glands of males obtained from interspecific hybridization betweenHeliothis virescens andH. subflexa (Lepidoptera: Noctuidae) (1995)

Teal, Peter E. A. ; Oostendorp, Andrea

Springer

Journal of chemical ecology 21 (1995), S. 59-67

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ISSN: 1573-1561

Keywords: Hairpencils ; sex pheromone ; Heliothis ; autosomes ; sex chromosomes

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology

Notes: Abstract Pheromone produced by the hairpencil glands of interspecific hybrid- and backcross-generation males from crosses betweenHeliothis virescens (F.) withH. subflexa (Gn.) was studied. Males of reciprocal F1 hybrids, all of which had hairpencil glands morphologically similar to those ofH. virescens, produced neither the same pheromone blend nor amounts of pheromone that were produced by males ofH. virescens. Instead, these hybrid males produced pheromone that was quantitatively and qualitatively similar to that produced byH. subflexa. Hairpencil gland extracts from males obtained from backcrossing F1 females of either cross to males ofH. subflexa were the same as those ofH. subflexa. However, extracts from backcross males of crosses between F1 females andH. virescens were variable. Some extracts from these backcross males were like those ofH. virescens while others were either likeH. subflexa or were intermediate between those of the parent species. These results showed that the production of pheromone by the hairpencil glands of hybrid and backcross males is under the dominant regulation of autosomal genes of theH. subflexa genome.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02033662

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PBAN regulation of pheromone biosynthesis in female tobacco hornworm moths,Manduca sexta (L.) (1995)

Fang, Nianbai ; Teal, Peter E. A. ; Tumlinson, James H.

New York, NY [u.a.] : Wiley-Blackwell

Archives of Insect Biochemistry and Physiology 29 (1995), S. 35-44

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ISSN: 0739-4462

Keywords: PBAN ; fatty acyl precursor ; Manduca sexta ; sex pheromone ; aldehydes ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Biology

Notes: Manduca sexta females that were decapitated produced no pheromone during the scotophase following decapitation, indicating that they were free of pheromone biosynthesis activating neuropeptide (PBAN). When deuterated hexadecanoic or (Z)-11-hexadecenoic acid was applied to the sex pheromone glands of decapitated or intact females of the same age, and allowed to incubate in vivo for 24 h, deuterium labeled Δ-11- and Δ-10, 12-unsaturated 16-carbon fatty acids were produced in both types of females. Injection of PBAN into intact or decapitated females 23 h after application of labeled acids had no effect on the production of unsaturated labeled fatty acids. However, deuterium labeled aldehydes were produced only in females that were injected with PBAN. Therefore, in this species, PBAN activates the process by which fatty acyl precursors in the pheromone gland are converted into the pheromonal aldehydes. © 1995 Wiley-Liss, Inc.This article is a US Government work and, as such, is in the public domain in the United States of America.

Additional Material: 2 Ill.