Search Results - "Baxter, Simon W."

MAPK signaling pathway alters expression of midgut ALP and ABCC genes and causes resistance to Bacillus thuringiensis Cry1Ac toxin in diamondback moth by Guo, Zhaojiang, Kang, Shi, Chen, Defeng, Wu, Qingjun, Wang, Shaoli, Xie, Wen, Zhu, Xun, Baxter, Simon W, Zhou, Xuguo, Jurat-Fuentes, Juan Luis, Zhang, Youjun

“…Insecticidal crystal toxins derived from the soil bacterium Bacillus thuringiensis (Bt) are widely used as biopesticide sprays or expressed in transgenic crops…”
Get full text

Resistance to Bacillus thuringiensis Cry1Ac toxin requires mutations in two Plutella xylostella ATP-binding cassette transporter paralogs by Liu, Zhaoxia, Fu, Shu, Ma, Xiaoli, Baxter, Simon W, Vasseur, Liette, Xiong, Lei, Huang, Yuping, Yang, Guang, You, Shijun, You, Minsheng

“…The diamondback moth, Plutella xylostella, is a cosmopolitan pest and the first species to develop field resistance to toxins from the gram-positive bacterium…”
Get full text

Evolutionary Novelty in a Butterfly Wing Pattern through Enhancer Shuffling by Wallbank, Richard W R, Baxter, Simon W, Pardo-Diaz, Carolina, Hanly, Joseph J, Martin, Simon H, Mallet, James, Dasmahapatra, Kanchon K, Salazar, Camilo, Joron, Mathieu, Nadeau, Nicola, McMillan, W Owen, Jiggins, Chris D

“…An important goal in evolutionary biology is to understand the genetic changes underlying novel morphological structures. We investigated the origins of a…”
Get full text

Adaptive introgression across species boundaries in Heliconius butterflies by Pardo-Diaz, Carolina, Salazar, Camilo, Baxter, Simon W, Merot, Claire, Figueiredo-Ready, Wilsea, Joron, Mathieu, McMillan, W Owen, Jiggins, Chris D

“…It is widely documented that hybridisation occurs between many closely related species, but the importance of introgression in adaptive evolution remains…”
Get full text

Linkage mapping and comparative genomics using next-generation RAD sequencing of a non-model organism by Baxter, Simon W, Davey, John W, Johnston, J Spencer, Shelton, Anthony M, Heckel, David G, Jiggins, Chris D, Blaxter, Mark L

“…Restriction-site associated DNA (RAD) sequencing is a powerful new method for targeted sequencing across the genomes of many individuals. This approach has…”
Get full text

Parallel evolution of Bacillus thuringiensis toxin resistance in lepidoptera by Baxter, Simon W, Badenes-Pérez, Francisco R, Morrison, Anna, Vogel, Heiko, Crickmore, Neil, Kain, Wendy, Wang, Ping, Heckel, David G, Jiggins, Chris D

“…Despite the prominent and worldwide use of Bacillus thuringiensis (Bt) insecticidal toxins in agriculture, knowledge of the mechanism by which they kill pests…”
Get full text

Temporal Exposure to Bt Insecticide Causes Oxidative Stress in Larval Midgut Tissue by Muita, Biko K, Baxter, Simon W

“…(Bt) three-domain Cry toxins are highly successful biological pesticides; however, the mechanism through which they cause death to targeted larval midgut cells…”
Get full text

Chromosomal rearrangements maintain a polymorphic supergene controlling butterfly mimicry by Joron, Mathieu, Frezal, Lise, Jones, Robert T., Chamberlain, Nicola L., Lee, Siu F., Haag, Christoph R., Whibley, Annabel, Becuwe, Michel, Baxter, Simon W., Ferguson, Laura, Wilkinson, Paul A., Salazar, Camilo, Davidson, Claire, Clark, Richard, Quail, Michael A., Beasley, Helen, Glithero, Rebecca, Lloyd, Christine, Sims, Sarah, Jones, Matthew C., Rogers, Jane, Jiggins, Chris D., ffrench-Constant, Richard H.

“…Evolution of supergenes The toxic butterfly Heliconius numata , found in forests across South America, mimics the wing patterns of several species of another…”
Get full text

An Insect Counteradaptation against Host Plant Defenses Evolved through Concerted Neofunctionalization by Heidel-Fischer, Hanna M, Kirsch, Roy, Reichelt, Michael, Ahn, Seung-Joon, Wielsch, Natalie, Baxter, Simon W, Heckel, David G, Vogel, Heiko, Kroymann, Juergen

“…Antagonistic chemical interactions between herbivorous insects and their host plants are often thought to coevolve in a stepwise process, with an evolutionary…”
Get full text

Genome-wide patterns of divergence and gene flow across a butterfly radiation by Nadeau, Nicola J., Martin, Simon H., Kozak, Krzysztof M., Salazar, Camilo, Dasmahapatra, Kanchon K., Davey, John W., Baxter, Simon W., Blaxter, Mark L., Mallet, James, Jiggins, Chris D.

“…The Heliconius butterflies are a diverse recent radiation comprising multiple levels of divergence with ongoing gene flow between species. The recently…”
Get full text

Characterization and expression of the cytochrome P450 gene family in diamondback moth, Plutella xylostella (L.) by Yu, Liying, Tang, Weiqi, He, Weiyi, Ma, Xiaoli, Vasseur, Liette, Baxter, Simon W., Yang, Guang, Huang, Shiguo, Song, Fengqin, You, Minsheng

“…Cytochrome P450 monooxygenases are present in almost all organisms and can play vital roles in hormone regulation, metabolism of xenobiotics and in…”
Get full text

Expressing a moth abcc2 gene in transgenic Drosophila causes susceptibility to Bt Cry1Ac without requiring a cadherin-like protein receptor by Stevens, Tristan, Song, Sisi, Bruning, John B., Choo, Amanda, Baxter, Simon W.

“…Bt toxins ingested by insect pests can bind to midgut receptors and cause death, although several steps in this process remain unclear. Multiple Bt toxin…”
Get full text

Major Improvements to the Heliconius melpomene Genome Assembly Used to Confirm 10 Chromosome Fusion Events in 6 Million Years of Butterfly Evolution by Davey, John W, Chouteau, Mathieu, Barker, Sarah L, Maroja, Luana, Baxter, Simon W, Simpson, Fraser, Merrill, Richard M, Joron, Mathieu, Mallet, James, Dasmahapatra, Kanchon K, Jiggins, Chris D

“…The Heliconius butterflies are a widely studied adaptive radiation of 46 species spread across Central and South America, several of which are known to…”
Get full text

Lessons from Drosophila: Engineering Genetic Sexing Strains with Temperature-Sensitive Lethality for Sterile Insect Technique Applications by Nguyen, Thu N M, Choo, Amanda, Baxter, Simon W

“…A major obstacle of sterile insect technique (SIT) programs is the availability of robust sex-separation systems for conditional removal of females. Sterilized…”
Get full text

Cryptic Plutella species show deep divergence despite the capacity to hybridize by Perry, Kym D, Baker, Gregory J, Powis, Kevin J, Kent, Joanne K, Ward, Christopher M, Baxter, Simon W

“…Understanding genomic and phenotypic diversity among cryptic pest taxa has important implications for the management of pests and diseases. The diamondback…”
Get full text

Genetic evidence for hybrid trait speciation in heliconius butterflies by Salazar, Camilo, Baxter, Simon W, Pardo-Diaz, Carolina, Wu, Grace, Surridge, Alison, Linares, Mauricio, Bermingham, Eldredge, Jiggins, Chris D

“…Homoploid hybrid speciation is the formation of a new hybrid species without change in chromosome number. So far, there has been a lack of direct molecular…”
Get full text

Genomic hotspots for adaptation: the population genetics of Müllerian mimicry in the Heliconius melpomene clade by Baxter, Simon W, Nadeau, Nicola J, Maroja, Luana S, Wilkinson, Paul, Counterman, Brian A, Dawson, Anna, Beltran, Margarita, Perez-Espona, Silvia, Chamberlain, Nicola, Ferguson, Laura, Clark, Richard, Davidson, Claire, Glithero, Rebecca, Mallet, James, McMillan, W Owen, Kronforst, Marcus, Joron, Mathieu, Ffrench-Constant, Richard H, Jiggins, Chris D

“…Wing patterning in Heliconius butterflies is a longstanding example of both Müllerian mimicry and phenotypic radiation under strong natural selection. The loci…”
Get full text

Synteny and chromosome evolution in the Lepidoptera: evidence from mapping in Heliconius melpomene by Pringle, E.G, Baxter, S.W, Webster, C.L, Papanicolaou, A, Lee, S.F, Jiggins, C.D

“…The extent of conservation of synteny and gene order in the Lepidoptera has been investigated previously only by comparing a small subset of linkage groups…”
Get full text

Deep mitochondrial divergence within a Heliconius butterfly species is not explained by cryptic speciation or endosymbiotic bacteria by Muñoz, Astrid G, Baxter, Simon W, Linares, Mauricio, Jiggins, Chris D

“…Cryptic population structure can be an indicator of incipient speciation or historical processes. We investigated a previously documented deep break in the…”
Get full text

Varying contributions of three ryanodine receptor point mutations to diamide insecticide resistance in Plutella xylostella by Jiang, Dong, Qian, Cheng, Wang, Danhui, Wang, Falong, Zhao, Shan, Yang, Yihua, Baxter, Simon W, Wang, Xingliang, Wu, Yidong

“…BACKGROUND Although decoding the molecular mechanisms underlying insecticide resistance has often proven difficult, recent progress has revealed that specific…”
Get full text