Publications by authors named "Julie T Chapados"

Click-beetles (Coleoptera: Elateridae) are an abundant, diverse, and economically important beetle family that includes bioluminescent species. To date, molecular phylogenies have sampled relatively few taxa and genes, incompletely resolving subfamily level relationships. We present a novel probe set for anchored hybrid enrichment of 2260 single-copy orthologous genes in Elateroidea.

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This study applied a 16S rRNA gene metabarcoding approach to characterize bacterial community compositional and functional attributes for surface water samples collected within, primarily, agriculturally dominated watersheds in Ontario and Québec, Canada. Compositional heterogeneity was best explained by stream order, season, and watercourse discharge. Generally, community diversity was higher at agriculturally dominated lower order streams, compared to larger stream order systems such as small to large rivers.

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Spore samplers are widely used in pathogen surveillance but not so much for monitoring the composition of aeromycobiota. In Canada, a nationwide spore-sampling network (AeroNet) was established as a pilot project to assess fungal community composition in air and rain samples collected using three different spore samplers in the summers of 2010 and 2011. Metabarcodes of the internal transcribed spacer (ITS) were exhaustively characterized for three of the network sites, in British Columbia (BC), Québec (QC), and Prince Edward Island (PEI), to compare performance of the samplers.

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Potato wart, caused by the fungal pathogen Synchytrium endobioticum, is a serious disease with the potential to cause significant economic damage. The small subunit (SSU) and internal transcribed spacer (ITS) ribosomal DNA (rDNA) were sequenced for several Synchytrium spp., showing a high rate of variability for both of these markers among the different species and monophyly of the genus within phylum Chytridiomycota.

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Article Synopsis
  • * The Dw6 locus was localized to a small chromosomal area on linkage group KO33, with the potential marker aco245 identified, which codes for an enzyme involved in plant growth.
  • * Findings suggest that the identified genomic region holds promise for developing diagnostic markers for marker-assisted selection and for studying the function of vacuolar proton ATPases in plant development.
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Article Synopsis
  • The study aimed to find molecular markers related to flowering time in three oat populations derived from Brazilian varieties, which is crucial for crop adaptation and growing cycles.
  • Researchers used recombinant inbred lines and identified one major quantitative trait locus (QTL) affecting flowering time in each of the crosses studied, showing some connections to known genetic loci associated with day-length insensitivity.
  • The findings suggest that the Brazilian oat line UFRGS 8 has favorable alleles for early flowering, making it a strong candidate for molecular breeding to enhance oat production under short-day conditions in Brazil.
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