Impact of plant suitability, biogeography, and ecological factors on. Caterpillars of the moth species heliothis subflexa g. The moth heliothis subflexa benefits from secondary plant components by turning the original defensive function of these compounds into its own advantage. Withanolides, which are present in physalis plants, protect the moth from harmful effects caused by pathogenic bacteria. Although physalis surface extracts have been shown to elicit attraction and oviposition by adult ovipositing females, little else was known as to how adults locate their host plants for oviposition.
Qualitative and quantitative analysis of chemicals emitted. Expression of a gabab receptor in olfactory sensory. Effect of release rate and ratio of z11hexadecen1ol from synthetic pheromone blends on trap capture ofheliothis subflexa lepidoptera. Mac, windows and unix clients can print to a create pdf printer queue with custom pdf settings that automatically creates pdf documents of any postscript print job.
Bombyx mori abc transporter c2 structures responsible for. European corn borer consortium to identify the genes underlying the sex pheromone production, perception and behavioral response. Methanol extracts of homogenized groundcherry,physalis angulata, leaves increased egg deposition byheliothis subflexa gn. Inheritance of central neuroanatomy and physiology related. Effect of altitude and maturity stages on quality attributes of. Read mitochondrial biogenesis during spermatogenesis in heliothis virescens, h. Heliothis virescens has some dark shading on the hw and the postmedial line goes straight up to the costa not bending to the apex like subflexa don lafontaine comments. The four heliothine species heliothis virescens, heliothis subflexa, helicoverpa armigera, and helicoverpa assulta belong to a phylogenetic group of moths known as a majorpest lineage. Acceptance and development of heliothis subflexa and h. The outer line ends before reaching the apical angle. Up and down regulation of a wide set of genes involved in primary secondary plant metabolism and defense signaling. Abcc transporters mediate insect resistance to multiple bt. In this study we focus on four closely related species, heliothis virescens, heliothis subflexa, helicoverpa armigera and helicoverpa assulta, which use z11hexadecenal, z9tetradecanal, and z9hexadecenal in different ratios in their pheromone blend.
Trpv1 receptors and nasal trigeminal chemesthesis pdf. Hybridization of sympatric closely related species may sometimes lead to introgression and speciation. Figure 1 larvae of chloridea heliothis subflexa in physalis peruviana fruit. Impact of plant suitability, biogeography, and ecological factors on associations between the specialist herbivore heliothis subflexa g. Heliothis subflexa is a specialist herbivore, whose larvae feed on fruits of physalis species solanaceae. If you do not see its contents the file may be temporarily unavailable at the journal website or you do not have a pdf plugin installed and enabled in your browser. Differential attraction of heliothis subflexa males to. Public understanding of life sciences chemical ecology. Mapping of major cry1a resistance genes has linked resistance to the abcc2 locus in heliothis virescens, plutella xylostella, trichoplusia ni and bombyx mori, and mutations in this gene have been found in three of these btresistant strains. To feed, each newly emerged caterpillar cuts a small hole in the calyx and then bores. Host location by adults and larvae of specialist herbivore.
Expression of a gaba b receptor in olfactory sensory neurons of sensilla trichodea on the male antenna of the moth heliothis virescens. Evolution of olfactory circuits in insects pdf paperity. Demonstration of oviposition stimulant from groundcherry using novel bioassay. Some species originally in this genus have been moved to other genera, see chloridea and helicoverpa. The sister species helicoverpa armigera and helicoverpa assulta both use z11hexadecenal and z9hexadecenal as sex pheromone components but in reversed ratios. Frontiers the inheritance of the pheromone sensory. Relative resistance of heliothis subflexa to a single. Journal of invertebrate pathology 42, 282284 1983 relative resistance of heliothis subflexa to a singleembedded nucleopolyhedrosis virus of heliothis species species of heliothis have been tested for susceptibility to the singleembedded nucleopolyhedrosis viruses of heliothis zea hzsnpv as part of a host spectrum screening program since this virus was isolated in july 1961 c.
We conducted genetic crosses between these two species and used aflp marker. Identification of sterile backcross heliothis males in. Proceedings of the workshop on the biological control of heliothis. Sheck and gould, 1995, 1996 its occurrence is limited to habitats where these plants occur.
The european corn borer ecb, ostrinia nubilalis, is a textbook example of pheromone polymorphism. Micoletzkya species associate with bark beetles, and parasitodiplogaster species are intimately associated with fig wasps agaonidae 4, 5, 6. Noctuidae are known to feed exclusively on fruits of plants in the genus physalis l. Many genera in the diplogastridae to which pristionchus belongs are associated with insects. We then measured the amount of carbon dioxide produced by individual living versus dead caterpillars in order to determine whether there was a significant correlation between caterpillars co 2 output and the amount of upwind flight behavior we had observed in the y. Your use of this pdf, the bioone complete website, and all posted and associated.
Pristionchus pacificus is a nematode cultivated to provide comparisons to the c. Groot, coby schal1,3 1 department of entomology and plant pathology, north carolina state university, raleigh, north carolina, united states of america, 2 institute for biodiversity and ecosystem dynamics. Males of the noctuid moths, heliothis virescens and h. Glomerular targets of heliothis subflexa male olfactory receptor neurons housed within long trichoid sensilla. Pdf percentage damage to tomatillo crops by heliothis. Genetics of sex pheromone blend differences between. You may not alter the pdf file, as changes to the published contribution are prohibited by law. Pogue 20 resurrected the genus chloridea for virescens, subflexa, tergemina, and ten other species formally placed in heliothis. Heliothinae is a frugivorous and monophagous species with plant hosts in the genus physalis. In the last few years, the subflexus straw moth became the main pestinsect in tomatillo crops physalis ixocarpa brotero in mexico and cape gooseberry physalis peruviana l. Noctuidae at various altitudes article pdf available in florida entomologist 982 june 2015 with 61 reads. Research article qualitative and quantitative analysis of chemicals emitted from the pheromone gland of individual heliothis subflexa females satoshi nojima1, alice classen 2, astrid t. Interspecific hybridization of heliothis subflexa and h.
Percentages of tomatillo fruits infested by heliothis subflexa along an. Heliothis subflexa is a moth of the family noctuidae first described by achille guenee in 1852. Chemoattraction in pristionchus nematodes and implications. The chemicals emitted from the sex pheromone gland of individual heliothis subflexa females were sampled using a short section of thickfilm megabore fused silica capillary column, and the pheromone glands of the same females were extracted after the effluvia collection. Heliothinae is a frugivorous and monophagous species with plant. Heliothis subflexa by landing on or near the caterpillars and feed on them. Percentage damage to tomatillo crops by heliothis subflexa lepidoptera. Heliothis subflexa and heliothis virescens to components of. Evolution, published for the society for the study of evolution, is the premier publication devoted to the study of organic evolution and the integration of the various fields of science concerned with evolution. Pdf first record of chloridea heliothis subflexa lepidoptera. Defining a synthetic pheromone blend attractive to male heliothis subflexa under wind tunnel conditions. Pdf behavioral adaptations increase the value of enemy.
Pdf chloridea heliothis subflexa guenee lepidoptera. First record of chloridea heliothis subflexa lepidoptera. In doseresponse tests using wholeleaf washes of groundcherry leaves, the threshold of positive response vs. A rapid cytological method for distinguishing between sterile bc heliothis males and fertile native males is presented. Percentage damage to tomatillo crops by heliothis subflexa bioone tomatillo field locations, m asl, and percentages of damaged fruits were as follows. Noctuidae is a new world specialist herbivore, and as it only feeds on species in the genus physalis mcelvare 1941.
Behavioral adaptations increase the value of enemyfree space for heliothis subflexa, a specialist herbivore article pdf available in evolution 564. Distribution and economic importance of heliothis virescens and helicoverpa zea in north, central, and south america and of their natural enemies and host plants. Create pdf server is a highly automated serverbased pdf creation solution. Because bombyx mori abc transporter c2 bmabcc2 has fold higher potential than b. Host acceptance and developmenl of heliothis subflexa guenee, h. Bhl relies on donations to provide free pdf downloads and.
It was first described by ferdinand ochsenheimer in 1816. These bacteria are pathogenic to various insects and have high injectable insecticide activity at 24 h. If you do not see its contents the file may be temporarily unavailable at the journal website or you do not have a pdf plugin. Males of the two strains z and e prefer opposite ratios of the two pheromone components, z11 and e11tetradecenyl acetate, with a sexlinked factor underlying this difference in preference. Heliothis is a genus of moths in the family noctuidae. The journal presents significant and original results that extend our understanding of evolutionary phenomena and processes. In fact, there are about 29 and 26% sensilla housing osns tuned to the nonpheromone component z914. The male antennal lobes of the two strains contain a pheromone sensitive. Heliothis subflexa uses the inflated calyx surrounding physalis fruits as enemy. The information you enter here will be stored in the downloaded file to assist you in managing your downloaded pdfs locally.
These species were crossed and their response to hybridization compared with results obtained from crosses between the same species at stoneville, miss. Frontiers specific olfactory neurons and glomeruli are. It is found from most of the united states, throughout the antilles, and south to argentina the larvae feed exclusively on fruits of physalis species, which are enclosed in an inflated, lanternshaped calyx. Malaria mosquitoes hostlocate and feed upon caterpillars. University of hohenheim, institute of physiology, stuttgart, germany. A total of 492 larvae of the f 1 generation were obtained and 374 of these completed larval development and. This characteristic seems to be common among heliothine moths. Insects free fulltext assessing the pathogenicity of. Some of the species have larvae which are agricultural pests on crop species such as tobacco, cotton, soybean and pigeon pea. Please address any queries to the production editor of the journal in question, giving your name, the. Percentage damage to tomatillo crops by heliothis subflexa bioone. Hybridization between helicoverpa armigera and helicoverpa.
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