Publications by authors named "Katherine D'Amico-Willman"

Article Synopsis
  • In July 2022, lesions indicative of bacterial leaf spot (BLS) were observed on various sesame plant varieties in North Carolina, with certain varieties showing up to 75% disease prevalence.
  • Leaf samples from affected plants were collected and cultured on specialized media, resulting in the isolation of colonies that were then genotyped to identify their genetic makeup.
  • Phylogenetic analysis confirmed that the isolates were Pseudomonas syringae pv. sesami, linking the observed symptoms to this specific bacterial pathovar.
View Article and Find Full Text PDF

The focus of this study is to profile changes in DNA methylation and small RNA expression occurring with increased age in almond breeding germplasm to identify possible biomarkers of age that can be used to assess the potential of individuals to develop aging-related disorders. To profile DNA methylation in almond germplasm, 70 methylomes were generated from almond individuals representing three age cohorts (11, 7, and 2 years old) using an enzymatic methyl-seq approach followed by analysis to call differentially methylated regions (DMRs) within these cohorts. Small RNA (sRNA) expression was profiled in three breeding selections, each from two age cohorts (1 and 6 years old), using sRNA-Seq followed by differential expression analysis.

View Article and Find Full Text PDF

While genomes were originally seen as static entities that stably held and organized genetic information, recent advances in sequencing have uncovered the dynamic nature of the genome. New conceptualizations of the genome include complex relationships between the environment and gene expression that must be maintained, regulated, and sometimes even transmitted over generations. The discovery of epigenetic mechanisms has allowed researchers to understand how traits like phenology, plasticity, and fitness can be altered without changing the underlying deoxyribonucleic acid sequence.

View Article and Find Full Text PDF

Xanthomonas arboricola pv. is an important plant pathogen and the causal agent of bacterial spot of stone fruits ( spp). Here, we report a complete genome of X.

View Article and Find Full Text PDF
Article Synopsis
  • Almonds are a valuable nut crop primarily produced in the U.S., with 'Nonpareil' being the most popular cultivar, but until now, there was no whole-genome assembly available for it.
  • Researchers generated a comprehensive genome sequence for the 'Nonpareil' almond using advanced sequencing technologies, revealing over 49,000 possible genes, with a significant portion linked to biological functions.
  • The study also explored the methylation patterns across different almond tissues, showing variations that may affect traits like self-compatibility and bud dormancy.
View Article and Find Full Text PDF

While all organisms age, our understanding of how aging occurs varies among species. The aging process in perennial plants is not well-defined, yet can have implications on production and yield of valuable fruit and nut crops. Almond exhibits an age-related disorder known as non-infectious bud failure (BF) that affects vegetative bud development, indirectly affecting kernel yield.

View Article and Find Full Text PDF