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Leslie C. Lewis
Iowa State University
93Publications
31H-index
2,794Citations
Publications 93
Newest
#1David L. Dorhout (Iowa State University)H-Index: 8
#2Thomas W. Sappington (Iowa State University)H-Index: 30
Last.Marlin E. Rice (Iowa State University)H-Index: 23
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The microsporidian Nosema pyrausta Paillot is a common and widespread pathogen of European corn borer, Ostrinia nubilalis (Hiibner), in North America and Europe. Nosema negatively affects European corn borer longevity and fecundity. In this study, we used flight mills to examine the effects of Nosema infection on flight activity of unmated males and females at 1 and 3 days after pupal eclosion, taking the level of infection, as measured by number of Nosema spores per mg of tissue, into considera...
16 CitationsSource
#1Miriam D. Lopez (ARS: Agricultural Research Service)H-Index: 6
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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Abstract Infection with Nosema pyrausta Paillot lengthens developmental period of Bt-susceptible Ostrinia nubilalis (Hubner) to a similar extent as feeding on Cry1Ab-incorporated diet in Cry1Ab-resistant O. nubilalis, and these two factors combined lengthen developmental period further than either alone. Resistant O. nubilalis mating with infected susceptible, or infected resistant partners would produce partially- and fully-resistant offspring, respectively, infected with N. pyrausta. To invest...
5 CitationsSource
#1Brad S. Coates (Iowa State University)H-Index: 23
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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Transposable elements (TEs) are mobile DNA regions that alter host genome structure and gene expression. A novel 588 bp non-autonomous high copy number TE in the Ostrinia nubilalis genome has features in common with miniature inverted-repeat transposable elements (MITEs): high A + T content (62.3%), lack of internal protein coding sequence, and secondary structure consisting of subterminal inverted repeats (SIRs). The O. nubilalis TE has inserted at (GAAA)n microsatellite loci, and was named the...
33 CitationsSource
#1Miriam D. Lopez (ARS: Agricultural Research Service)H-Index: 6
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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The high dose/refixge strategy for delaying evolution of resistance to Bt maize [Zea mays L. (Poaceae) ] relies on random mating between resistant European corn borers, Ostrinia nubilalis (Hubner) (Lepidoptera: Crambidae), and susceptible O. nubilalis from the refuge. However, differences in developmental rate caused by feeding on Bt maize, or infection with the microsporidium Nosema pyrausta Paillot (Microsporida: Nosematidae) may result in assortative mating. Developmental delays and mortality...
14 CitationsSource
#1Brad S. CoatesH-Index: 23
Last.Leslie C. LewisH-Index: 31
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Microsatellite loci are standard genetic markers for population genetic analysis, whereas single nucleotide polymorphisms (SNPs) are more recent tools that require assessment of neutrality and appropriate use in population genetics. Twelve SNP markers were used to describe the genetic structure of Diabrotica virgifera virgifera (LeConte; Coleoptera: Chrysomelidae) in the United States of America and revealed a high mean observed heterozygosity (0.40 ± 0.059) and low global FST (0.029). Pairwise ...
79 CitationsSource
#1Leslie C. Lewis (ARS: Agricultural Research Service)H-Index: 31
#2Denny J. Bruck (ARS: Agricultural Research Service)H-Index: 24
Last.Earle S. RaunH-Index: 1
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Nosema pyrausta, an entomopathogenic microsporidium, is an important population regulator of the European corn borer, Ostrinia nubilalis. This manuscript is a review of research on the relationships between N. pyrausta and O. nubilalis. N. pyrausta was described from O. nubilalis in Hungary in 1927 and from O. nubilalis in IA in 1950. It affects the basic biology of O. nubilalis by slowing larval development, reducing percentage pupation, and decreasing adult longevity, oviposition and fecundity...
33 CitationsSource
#1Brad S. Coates (Iowa State University)H-Index: 23
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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The European corn borer, Ostrinia nubilalis, is a serious pest of food, fiber, and biofuel crops in Europe, North America, and Asia and a model system for insect olfaction and speciation. A bacterial artificial chromosome library constructed for O. nubilalis contains 36 864 clones with an estimated average insert size of ≥120 kb and genome coverage of 8.8-fold. Screening OnB1 clones comprising approximately 2.76 genome equivalents determined the physical position of 24 sequence tag site markers,...
27 CitationsSource
#1Brad S. Coates (Iowa State University)H-Index: 23
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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Genes expressed in lepidopteran midgut tissues are involved in digestion and Bacillus thuringiensis (Bt) toxin resistance traits. Five hundred and thirty five unique transcripts were annotated from 1745 high quality O . nubilalis larval midgut expressed sequence tags (ESTs). Full-length cDNA sequence of 12 putative serine proteinase genes and 3 partial O . nubilalis aminopeptidase N protein genes, apn 1, apn 3, and apn 4, were obtained, and genes may have roles in plant feeding and Bt toxin resi...
38 CitationsSource
#1Colothdian D. Tate (Iowa State University)H-Index: 2
#2Richard L. Hellmich (Iowa State University)H-Index: 28
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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Popcorn was evaluated in a series of experiments conducted over four growing seasons for its potential as a refuge for European corn borer, Ostrinia nubilalis (Hubner). Objectives of these studies were to determine whether more larvae were produced in popcorn than in field corn and to determine how popcorn influenced female oviposition and larval distribution in neighboring field corn. Two varieties of popcorn (M140, 105d and M3374Y, 118d), one mixture of popcorn (50% 105d and 50% 118d), and fie...
3 CitationsSource
#1Brad S. Coates (Iowa State University)H-Index: 23
#2Douglas V. Sumerford (Iowa State University)H-Index: 17
Last.Leslie C. Lewis (Iowa State University)H-Index: 31
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Abstract Protein receptors may be required for activated Bacillus thuringiensis Cry toxins (Cry1Ab) to bind midgut epithelium prior to pore formation. Single nucleotide polymorphism markers from two Ostrinia nubilalis Hubner (Lepidoptera: Crambidae) midgut peptide receptors, cadherin (OnCad), aminopeptidase N 1 (OnAPN1), and OnBre5 (Onb3GalT5; a β-1,3-galactosyltransferase family 5 member) were used to examine segregation in F2 families derived from paired matings of Cry1Ab-resistant females and...
12 CitationsSource
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