Publications by authors named "Lisa T Crummett"

Digestion is driven by digestive enzymes and digestive enzyme gene copy number can provide insights on the genomic underpinnings of dietary specialization. The "Adaptive Modulation Hypothesis" (AMH) proposes that digestive enzyme activity, which increases with increased gene copy number, should correlate with substrate quantity in the diet. To test the AMH and reveal some of the genetics of herbivory vs carnivory, we sequenced, assembled, and annotated the genome of Anoplarchus purpurescens, a carnivorous prickleback fish in the family Stichaeidae, and compared the gene copy number for key digestive enzymes to that of Cebidichthys violaceus, a herbivorous fish from the same family.

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Introduction: Type 2 diabetes (T2D) is a growing public health burden throughout the world. Many people looking for information on how to prevent T2D will search on diabetes websites. Multiple dietary factors have a significant association with T2D risk, such as high intake of added sugars, refined carbohydrates, saturated fat, and red meat or processed meat; and decreased intake of dietary fiber, and fruits/vegetables.

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While increased intake of dietary fiber is known to reduce postprandial glycemic response, it is less understood whether the disruption of dietary fiber, in a blender, alters the postprandial glycemic response. We compared the postprandial glycemic response in 20 young, healthy college students (12 female, 8 male) after consuming whole fruit vs. blended fruit.

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Most literature exploring the biological effects of ocean acidification (OA) has focused on macroscopic organisms and far less is known about how marine microbial communities will respond. Studies of OA and microbial community composition and diversity have examined communities from a limited number of ocean regions where the ambient pH is near or above the global average. At San Juan Island (Salish Sea), a region that experiences naturally low pH (average = 7.

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Article Synopsis
  • Marine cyanobacteria viruses often have auxiliary metabolic genes (AMGs) that help boost the host's metabolism, but their adaptive roles aren't well understood.
  • A study of 33 AMGs in 60 cyanomyovirus genomes showed that while AMG content and virus phylogeny don't strongly align, AMG patterns are consistent within the same taxonomic groups and are influenced by the host's environment.
  • The research indicates that the rarity of AMGs may lead to their gain or loss due to changing selection pressures, while more common AMGs tend to be maintained under stable conditions, showcasing a specific cyanomyovirus (S-CAM7) that lacks many AMGs, including a key photosynthesis gene.
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