Erika Lackey

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Segregating hybrids and stable allopolyploids display morphological vigour, and Arabidopsis allotetraploids are larger than the parents Arabidopsis thaliana and Arabidopsis arenosa-the mechanisms for this are unknown. Circadian clocks mediate metabolic pathways and increase fitness in animals and plants. Here we report that epigenetic modifications of the(More)
Changes in genome structure and gene expression have been documented in both resynthesized and natural allopolyploids that contain two or more divergent genomes. The underlying mechanisms for rapid and stochastic changes in gene expression are unknown. Arabidopsis suecica is a natural allotetraploid derived from the extant A. thaliana and A. arenosa genomes(More)
Morphological transitions play an important role in virulence and virulence-related processes in a wide variety of pathogenic fungi, including the most commonly isolated human fungal pathogen Candida albicans. While environmental signals, transcriptional regulators, and target genes associated with C. albicans morphogenesis are well-characterized,(More)
Both natural and newly synthesized allopolyploids display nonadditive gene expression changes through genetic and epigenetic mechanisms. The nonadditively expressed genes include many microRNA (miRNA) targets, suggesting a role for miRNAs and their targets in morphological variation in the allopolyploids and their progenitors. We produced dominant-negative(More)
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