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Euphilotes battoides allyni; biodiversity; butterflies; genomics; habitats; phylogeography; California
Abstract:
... Phylogeographic patterns in phytophagous organisms are often contextualized in light of geographic isolation and ecological (host, habitat) specialization. However, assessing the relative impact of these phenomena is not straightforward, even in areas where phylogeography is well-studied, such as the California Floristic Province. Here, we use genome-wide markers to elucidate population genomic an ...
DNA; DNA barcoding; Tephritidae; air transportation; fruit flies; fruits; introduced plants; California; Florida
Abstract:
... Exotic fruit flies in the family Tephritidae pose a threat to U.S. agriculture and natural resources. As part of ongoing fruit fly detection and exclusion programs, invasive fruit fly adults are periodically trapped in and introduced populations are eradicated from two major fruit producing states: California and Florida. Although the pathways used by flies to enter these states are not clear, one ...
Bactrocera dorsalis; entomology; genetic variation; haplotypes; mitochondria; mitochondrial DNA; population genetics; China
Abstract:
... For more than a decade, various research groups have tracked the population genetics of the oriental fruit fly, Bactrocera dorsalis (Hendel) in China and neighboring countries using mitochondrial cytochrome c oxidase subunit I (COI) DNA. Although most research has reported high levels of mtDNA variation, to date no efforts have been made to integrate and compare the results from these studies simu ...
Hemileuca maia; bogs; data collection; genomics; habitat conservation; habitat fragmentation; inbreeding depression; monophyly; population structure; threatened species; Great Lakes region; New York; Ontario
Abstract:
... Rare, threatened species often suffer from habitat fragmentation, which leads to smaller populations vulnerable to negative impacts including inbreeding depression and collapse of metapopulation dynamics. Therefore, understanding the population structure and relationships of each population of a threatened species is critical for prioritising habitat conservation and reintroduction efforts. The bo ...
Bactrocera latifrons; Solanum; databases; developmental stages; environmental factors; epigenetics; fruit flies; gels; gene deletion; gene editing; mass spectrometry; protein synthesis; proteins; proteome; proteomics; transcriptome; two-dimensional gel electrophoresis
Abstract:
... Fruit fly development has been widely studied in details, understanding of “what”, “when”, “where”, “why”, and “how” many hundred thousand proteins exist in an insect cell interact and express during development at molecular level largely remained to be clarified. We conducted proteome mapping in all developmental stages of the solanum fruit fly, Bactrocera latifrons (Hendel), by comparing all age ...
ScottM. Geib, et al. ; Jonathan B. Koch; Julian R. Dupuis; Marcel-Kate Jardeleza; Nadiatou Ouedraogo; Peter A. Follett; Donald K. Price; Show all 7 Authors
... In the context of evolutionary theory, invasion biology provides a fantastic enigma: how does a species with limited standing genetic variation survive and adapt to a novel environment? Reduced genetic diversity is typically associated with low fitness and evolutionary potential, yet some introduced species have proven to be successful invaders despite undergoing a genetic bottleneck during the ea ...
ScottM. Geib, et al. ; Anna K. Childers; Sheina B. Sim; Monica F. Poelchau; Brad S. Coates; Tyler J. Simmonds; Erin D. Scully; Timothy P. L. Smith; Christopher P. Childers; Renee L. Corpuz; Kevin Hackett; Brian Scheffler; Show all 12 Authors
... The phylum Arthropoda includes species crucial for ecosystem stability, soil health, crop production, and others that present obstacles to crop and animal agriculture. The United States Department of Agriculture’s Agricultural Research Service initiated the Ag100Pest Initiative to generate reference genome assemblies of arthropods that are (or may become) pests to agricultural production and globa ...
Bactrocera dorsalis; Diachasmimorpha longicaudata; biological control; early development; fruit flies; gene expression regulation; immunity; larvae; mass spectrometry; metabolism; muscles; parasitism; parasitoids; phosphopyruvate hydratase; proteomics; regulatory proteins; transferrin; two-dimensional gel electrophoresis
Abstract:
... The oriental fruit fly, Bactrocera dorsalis, is an important agricultural pest and biological control is one of the most effective control methodologies. We conducted an investigation on the molecular response of the fruit fly to parasitism by the larval parasitoid, Diachasmimorpha longicaudata using two-dimensional gel electrophoresis and mass spectroscopy. We identified 285 differentially expres ...
... There is growing evidence for the decline of cryptic species across the planet as a result of human activities. Accurate data regarding patterns of poorly known or hard-to-find species diversity is essential for the recognition and conservation of threatened species and ecosystems. Casey’s June beetle Dinacoma caseyi is a federally listed endangered species restricted to the Coachella Valley in so ...
... Schizaphis graminum Rondani (Hemiptera: Aphididae) and Sipha flava Forbes (Hemiptera: Aphididae) are two common pests of bioenergy grasses. Despite the fact that they are both considered generalists, they differ in their ability to colonize Panicum virgatum cultivars. For example, S. flava colonizes both P. virgatum cv. Summer and P. virgatum cv. Kanlow whereas S. graminum can only colonize Summer ...
... The Sterile Insect Technique (SIT) is an important component of area wide programs to control invading or established populations of pestiferous tephritids. The SIT involves the production, sterilization, and release of large numbers of the target species, with the goal of obtaining sterile male x wild female matings, which yield infertile eggs. A major advance in SIT involved sex-linked, genetic ...
correspondence analysis; discriminant analysis; genetic variation; georeferencing; multidimensional scaling; multivariate analysis; population genetics; principal component analysis; spatial data
Abstract:
... Characterizing genetic structure across geographic space is a fundamental challenge in population genetics. Multivariate statistical analyses are powerful tools for summarizing genetic variability, but geographic information and accompanying metadata are not always easily integrated into these methods in a user‐friendly fashion. Here, we present a deployable Python‐based web‐tool, mvmapper, for vi ...
ScottM. Geib, et al. ; Julian R. Dupuis; Yohan Pillon; Tomoko Sakishima; Chrissen E. C. Gemmill; Srikar Chamala; W. Brad Barbazuk; Elizabeth A. Stacy; Show all 8 Authors
... Compared to traditionally used plastid or ribosomal markers, nuclear gene markers provide many advantages for molecular systematics of plants, and high-throughput sequencing technologies are making large nuclear datasets available at an unprecedented rate. We used targeted amplicon sequencing of 44 nuclear genes to construct a time-calibrated phylogeny of genus Metrosideros (Myrtaceae), evaluate r ...
Hemileuca maia; biogeography; gene flow; genetic variation; genomics; geographical distribution; habitats; herbivores; host plants; models; moths; population structure; single nucleotide polymorphism; taxon descriptions; North America
Abstract:
... Local adaptation can be a fundamental component of speciation, but its dynamics in relation to gene flow are not necessarily straightforward. Herbivorous taxa with localized host plant or habitat specialization across their geographic range are ideal models for investigating the patterns and constraints of local adaptation and its impact on diversification. The charismatic, day‐flying moths of the ...
... Wood-feeding insects encounter challenging diets containing low protein quantities, recalcitrant carbohydrate sources, and plant defensive compounds. The Asian longhorned beetle (Anoplophora glabripennis) is a wood-feeding insect that attacks and kills a diversity of hardwood tree species. We compared gene expression of midguts collected from larvae feeding in a preferred tree, sugar maple, to tho ...
... Biological control agents have several advantages over chemical control for pest management, including the capability to restore ecosystem balance with minimal non‐target effects and a lower propensity for targets to develop resistance. These factors are particularly important for invasive species control. The coconut rhinoceros beetle (Oryctes rhinoceros Linnaeus) is a major palm pest that invade ...
Bactrocera dorsalis; Drosophila melanogaster; amino acids; carboxylesterase; complementary DNA; databases; genes; naled; open reading frames; phylogeny; polyacrylamide gel electrophoresis; quantitative polymerase chain reaction; rapid amplification of cDNA ends; staining
Abstract:
... Compared to other organophosphate-resistant and -susceptible (S) lines of Bactrocera dorsalis, the carboxylesterase (CBE) BdE5 in the naled-resistant (nal-r) line has been found to possess remarkable quantitative elevation. Our study attempts to identify the role of BdE5 in naled resistance, and we discovered several points of interest. Firstly, activity staining on native PAGE revealed that the p ...
ScottM. Geib, et al. ; Sarah B. Kingan; Julie Urban; Christine C. Lambert; Primo Baybayan; Anna K. Childers; Brad Coates; Brian Scheffler; Kevin Hackett; Jonas Korlach; Show all 10 Authors
... A high-quality reference genome is an essential tool for applied and basic research on arthropods. Long-read sequencing technologies may be used to generate more complete and contiguous genome assemblies than alternate technologies, however, long-read methods have historically had greater input DNA requirements and higher costs than next generation sequencing, which are barriers to their use on ma ...
ScottM. Geib, et al. ; Erin D. Scully; Charles J. Mason; John E. Carlson; Ming Tien; Han-Yi Chen; Scott Harding; Chung-Jui Tsai; Kelli Hoover; Show all 9 Authors
Acer; Anoplophora glabripennis; Populus nigra; Populus tomentosa; bacterial communities; beta-glucosidase; broadleaved trees; community structure; digestion; gene expression; gene expression regulation; genome; host plants; insect cuticle; intestinal microorganisms; metabolic detoxification; midgut; plant-insect relations; species richness; symbionts; transcriptome; tremulacin
Abstract:
... Polyphagous insect herbivores have multiple mechanisms in place to overcome the dietary challenges of feeding in multiple plant species including, but not limited to, transcriptional plasticity and associations with obligate or facultative symbionts. The Asian longhorned beetle (Anoplophora glabripennis) is a polyphagous wood-feeder capable of developing on over 100 broadleaf tree species and, lik ...
Dacus; bioinformatics; data collection; fruit flies; genomics; high-throughput nucleotide sequencing; insect pests; loci; phylogeny; transcriptomics
Abstract:
... High‐throughput sequencing has fundamentally changed how molecular phylogenetic data sets are assembled, and phylogenomic data sets commonly contain 50‐ to 100‐fold more loci than those generated using traditional Sanger sequencing‐based approaches. Here, we demonstrate a new approach for building phylogenomic data sets using single‐tube, highly multiplexed amplicon sequencing, which we name HiMAP ...