Browsing Duke Scholarly Works by Affiliation of Duke Author(s) "Biology"
Now showing items 1-20 of 174
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A branching process model for flow cytometry and budding index measurements in cell synchrony experiments.
(Ann Appl Stat, 2009)We present a flexible branching process model for cell population dynamics in synchrony/time-series experiments used to study important cellular processes. Its formulation is constructive, based on an accounting of the unique ... -
A comparative analysis of egg provisioning using mass spectrometry during rapid life history evolution in sea urchins.
(Evolution & development, 2019-05-17)A dramatic life history switch that has evolved numerous times in marine invertebrates is the transition from planktotrophic (feeding) to lecithotrophic (nonfeeding) larval development-an evolutionary tradeoff with many ... -
A content analysis of the views of genetics professionals on race, ancestry, and genetics.
(AJOB empirical bioethics, 2018-10)Over the past decade, the proliferation of genetic studies on human health and disease has reinvigorated debates about the appropriate role of race and ancestry in research and clinical care. Here we report on the responses ... -
A Decad(e) of Reasons to Contribute to a PLOS Community-Run Journal
(PLOS Genetics, 2015-10-05) -
A dimensionless number for understanding the evolutionary dynamics of antigenically variable RNA viruses.
(Proc Biol Sci, 2011-12-22)Antigenically variable RNA viruses are significant contributors to the burden of infectious disease worldwide. One reason for their ubiquity is their ability to escape herd immunity through rapid antigenic evolution and ... -
A dual role for ErbB2 signaling in cardiac trabeculation.
(Development, 2010-11)Cardiac trabeculation is a crucial morphogenetic process by which clusters of ventricular cardiomyocytes extrude and expand into the cardiac jelly to form sheet-like projections. Although it has been suggested that cardiac ... -
A first glimpse at genes important to the Azolla–Nostoc symbiosis
(Symbiosis, 2019-01-01)© 2019, Springer Nature B.V. Azolla is a small genus of diminutive aquatic ferns with a surprisingly vast potential to benefit the environment and agriculture, as well as to provide insight into the evolution of ... -
A Functionally Conserved Gene Regulatory Network Module Governing Olfactory Neuron Diversity.
(PLoS Genet, 2016-01)Sensory neuron diversity is required for organisms to decipher complex environmental cues. In Drosophila, the olfactory environment is detected by 50 different olfactory receptor neuron (ORN) classes that are clustered in ... -
A new species of Clandestinotrema (Ascomycota: Ostropales: Graphidaceae) from montane cloud forest in the Venezuelan Andes
(Plant and Fungal Systematics, 2018-07-06) -
A noisy linear map underlies oscillations in cell size and gene expression in bacteria.
(Nature, 2015-07-16)During bacterial growth, a cell approximately doubles in size before division, after which it splits into two daughter cells. This process is subjected to the inherent perturbations of cellular noise and thus requires regulation ... -
A pipeline to determine RT-QPCR control genes for evolutionary studies: Application to primate gene expression across multiple tissues
(PLoS ONE, 2010)Because many species-specific phenotypic differences are assumed to be caused by differential regulation of gene expression, many recent investigations have focused on measuring transcript abundance. Despite the availability ... -
A population model of folate-mediated one-carbon metabolism.
(Nutrients, 2013-07-05)BACKGROUND: Previous mathematical models for hepatic and tissue one-carbon metabolism have been combined and extended to include a blood plasma compartment. We use this model to study how the concentrations of metabolites ... -
A Quantitative Analysis of Growth and Size Regulation in Manduca sexta: The Physiological Basis of Variation in Size and Age at Metamorphosis.
(PLoS One, 2015)Body size and development time are important life history traits because they are often highly correlated with fitness. Although the developmental mechanisms that control growth have been well studied, the mechanisms that ... -
A revised metric for quantifying body shape in vertebrates
(Zoology, 2013-08) -
A switch in the control of growth of the wing imaginal disks of Manduca sexta.
(PLoS One, 2010-05-19)BACKGROUND: Insulin and ecdysone are the key extrinsic regulators of growth for the wing imaginal disks of insects. In vitro tissue culture studies have shown that these two growth regulators act synergistically: either ... -
A Unified Approach to Taxonomic Delimitation in the Fern Genus Pentagramma (Pteridaceae)
(Systematic Botany, 2015-01-01)© Copyright 2015 by the American Society of Plant Taxonomists.The native goldback and silverback ferns of western North America, composing the genus Pentagramma, are phylogenetically isolated within the xeric-adapted cheilanthoid ... -
A widespread chromosomal inversion polymorphism contributes to a major life-history transition, local adaptation, and reproductive isolation.
(PLoS Biol, 2010-09-28)The role of chromosomal inversions in adaptation and speciation is controversial. Historically, inversions were thought to contribute to these processes either by directly causing hybrid sterility or by facilitating the ... -
Activity in descending dopaminergic neurons represents but is not required for leg movements in the fruit fly Drosophila.
(Physiol Rep, 2015-03)Modulatory descending neurons (DNs) that link the brain to body motor circuits, including dopaminergic DNs (DA-DNs), are thought to contribute to the flexible control of behavior. Dopamine elicits locomotor-like outputs ... -
Adiantumshastense, a new species of maidenhair fern from California.
(PhytoKeys, 2015)A new species of Adiantum is described from California. This species is endemic to northern California and is currently known only from Shasta County. We describe its discovery after first being collected over a century ... -
An ecological perspective on nanomaterial impacts in the environment.
(J Environ Qual, 2010-11)Growing concerns over the potential for unintended, adverse consequences of engineered nanoparticles (ENPs) in the environment have generated new research initiatives focused on understanding the ecological effects of ENPs. ...
