Genetic Evidence for Sibling Species within the Sugarcane Borer (Lepidoptera: Pyralidae)

Pashley, Dorothy P.; Hardy, Tad N.; Hammond, A. M.; Mihm, J. A.

doi:10.1093/aesa/83.6.1048

Cited by 28 publications

(31 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is in the case of the northwestern and Pampas populations of D. saccharalis (Fogliata et al., ), suggesting they may be incipient species (Nosil, ). Other studies, using biological, morphological, and physiological traits (Box, , ; Pashley et al., ; Cortés et al., ) or molecular tools, showed the existence of distinct lineages among populations of SCB from other regions (Lange et al., ; Cortés et al., ; Joyce et al., , ; Pavinato et al., ). Genetic divergence studies of SCB, using amplified fragment length polymorphism (AFLP), simple sequence repeats polymorphisms (SSR), and cytochrome oxidase subunit 1 (COI), suggest a marked host‐plant‐associated differentiation among populations from sugarcane, rice, maize, and sorghum (Joyce et al., ; Pavinato et al., ).…”

Section: Introductionmentioning

confidence: 98%

Host plant or geographic barrier? Reproductive compatibility among Diatraea saccharalis populations from different host plant species and locations in Argentina

Fogliata

Herrero

Vera

et al. 2019

Entomologia Exp Applicata

View full text Add to dashboard Cite

The sugarcane borer, Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae), is one of the main lepidopteran pests of sugarcane and maize. The association of insects with different environments and/or host plants may occur by adaptation and this can generate host races. Adaptation may produce phenotypic or genotypic variation, which results in the differences in bioecological characteristics such as reproductive compatibility that reduces gene flow among populations. The objective of this study was to determine the reproductive compatibility of three population combinations collected in various geographic locations and from different host plants, thereby determining the influence of geographic distance and/or insect plant association. Interpopulation crosses of D. saccharalis populations from Tucumán (maize and sugarcane) and Jujuy (sugarcane) provided evidence of pre‐zygotic and post‐zygotic incompatibility. The results indicate that gene flow barriers are influenced by the host plant. However, populations from various locations revealed that geographical location is the main factor influencing gene flow among populations of D. saccharalis.

show abstract

Section: Introductionmentioning

confidence: 98%

Host plant or geographic barrier? Reproductive compatibility among Diatraea saccharalis populations from different host plant species and locations in Argentina

Fogliata

Herrero

Vera

et al. 2019

Entomologia Exp Applicata

View full text Add to dashboard Cite

show abstract

“…Similarly, the fall armyworm Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) has been found to have two host plant strains, one feeding on corn and one on the introduced host rice (Pashley, Hardy, Hammond, & Mihm, 1990). The moths mate at different times of night and have unique pheromone blends, which contribute to ecological isolation (Groot, Marr, Heckel, & Schofl, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…This moth is considered an introduced species in the southern United States and can be a pest of cultivated plants including corn (Zea mays L.), sorghum (Sorghum bicolor L.), and rice (Oryza sativa L.) in various parts of its range (Cherry & Nuessly, 1993;Fuchs, Huffman, & Smith, 1979;Gifford & Mann, 1967;Vargas, Lastra, & Solis, 2013;White et al, 2001). Few population genetic studies of this insect have been conducted (Joyce et al, 2014;Lange, Scott, Graham, Sallam, & Allsopp, 2004;Pashley et al, 1990). Pashley et al (1990 found that populations of D. saccharalis from the southern United States and Mexico were divergent from those of Brazil.…”

Section: Introductionmentioning

confidence: 99%

Host‐plant associated genetic divergence of two Diatraea spp. (Lepidoptera: Crambidae) stemborers on novel crop plants

Joyce

Chicas

Cervantes

et al. 2016

Ecology and Evolution

View full text Add to dashboard Cite

Diatraea lineolata and Diatraea saccharalis (Lepidoptera: Crambidae) are moths with stemboring larvae that feed and develop on economically important grasses. This study investigated whether these moths have diverged from a native host plant, corn, onto introduced crop plants including sorghum, sugarcane, and rice. Diatraea larvae were collected from these four host plants throughout the year in El Salvador and were reared on artificial diet until moths or parasitoids emerged. Adult moths were subsequently identified to species. Amplified fragment length polymorphisms (AFLPs) and mitochondrial DNA cytochrome oxidase I (COI) were used to examine whether or not there was genetic divergence of D. lineolata or D. saccharalis populations on the four host plants. Percent parasitism was also determined for each moth on its host plants. D. lineolata was collected from corn in the rainy season and sorghum in the dry season. D. saccharalis was most abundant on sugarcane in the rainy season and sorghum in the dry season. The AFLP analysis found two genetically divergent populations of both D. lineolata and D. saccharalis. Both moths had high levels of parasitism on their dominant host plant in the rainy season, yet had low levels of parasitism on sorghum in the dry season. The presence of two genotypes of both Diatraea spp. on sorghum suggest that host‐associated differentiation is occurring on this novel introduced crop plant.

show abstract

“…Lepidopteran stemborers in the families Pyralidae, Crambidae and Noctuidae are pests in various crops in many regions of the world (for review see Smith et al, 1993). The lepidopteran hosts studied here are commonly pest in grass crops (Meyers, 1932;Chippendale, 1979;Hudon et al, 1989;Pashley et al, 1990). Two of the host species are New World pyralids, Diatraea saccharalis (F.) and D. grandiosella (Dyar) (sugarcane borer and Southwestern corn borer, respectively); Ostrinia nubilalis (Hübner), the European corn borer, is an Old World crambid.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation and hemocyte numbers in three lepidopteran stemborers parasitized by Cotesia flavipes‐complex endoparasitoids

Alleyne¹,

Wiedenmann²

2001

Entomologia Exp Applicata

View full text Add to dashboard Cite

Determination of the potential and actual host range of a natural enemy is crucial before its importation and release for biological control. We studied some of the factors that are important in determining the physiological host range of insect parasitoids attacking lepidopteran hosts. Our experimental system consisted of novel host‐parasitoid associations, with two New World pyralid stalk borers, Diatraea saccharalis and D. grandiosella; one Old World crambid borer, Ostrinia nubilalis as hosts; and three Old World microgastrine braconids, Cotesia chilonis, C. sesamiae, and C. flavipes as parasitoids. Experiments on the chronology of encapsulation of the parasitoid progeny by host hemocytes indicated that lepidopteran stemborers that are taxonomically, behaviorally and ecologically very similar differ in their ability to encapsulate a parasitoid species. D. saccharalis encapsulated C. flavipes sometimes, whereas D. grandiosella consistently encapsulated C. sesamiae and C. flavipes. C. chilonis was not encapsulated by either Diatraea host. If encapsulation occurred it did not start until four days after parasitization and continued during the following days. O. nubilalis was an unsuitable host for all three parasitoid species; parasitoid eggs were killed within 24 hours of parasitization. O. nubilalis had nearly twice as many hemocytes present in the hemolymph compared to the Diatraea species. In many of the host‐parasitoid combinations, there was an initial increase of hemocyte number soon after parasitization, which was not due to mechanical damage at oviposition. There was no correlation between total numbers of hemocytes present in the host hemolymph and the observed encapsulation levels. By understanding the encapsulation response we may be able to make better predictions about the host range of a parasitoid species before its release as a biological control agent.

show abstract

Genetic Evidence for Sibling Species within the Sugarcane Borer (Lepidoptera: Pyralidae)

Cited by 28 publications

References 0 publications

Host plant or geographic barrier? Reproductive compatibility among Diatraea saccharalis populations from different host plant species and locations in Argentina

Host plant or geographic barrier? Reproductive compatibility among Diatraea saccharalis populations from different host plant species and locations in Argentina

Host‐plant associated genetic divergence of two Diatraea spp. (Lepidoptera: Crambidae) stemborers on novel crop plants

Encapsulation and hemocyte numbers in three lepidopteran stemborers parasitized by Cotesia flavipes‐complex endoparasitoids

Contact Info

Product

Resources

About