Search
Now showing items 21-30 of 38
The Evolution of Organ Shape : Distal Tip Cell Migration and Gonadogenesis in Nematodes
(East Carolina University, 2013)
Animals display a variety of shapes in nature. The different shape of homologous organs allows them to adopt different functions and therefore, allows animals to live in different ecological niches. However, little is ...
Characterization of the Role of Mcm10 in DNA Replication in Drosophila melanogaster
(East Carolina University, 2013)
Replication of the genome and proper formation, and packaging, of chromatin are processes essential to eukaryotic life. Maintenance of epigenetic chromatin states is essential for faithfully reproducing the transcriptional ...
Experimental evidence for predator learning and Müllerian mimicry in Peruvian poison frogs (Ranitomeya, Dendrobatidae)
(East Carolina University, 2013)
Poison frogs are characterized by bright coloration, striking patterns, and toxicity; they have thus become a classic example of aposematism. Ranitomeya imitator mimics three congeneric model species (R. fantastica, R. ...
Boron Stress Responsive MicroRNAs and Their Targets in Barley
(2013)
Boron stress is an environmental factor affecting plant development and production. Recently, microRNAs (miRNAs) have been found to be involved in several plant processes such as growth regulation and stress responses. In ...
The scale and evolutionary significance of horizontal gene transfer in the choanoflagellate
(2013-10)
Background
It is generally agreed that horizontal gene transfer (HGT) is common in phagotrophic protists. However, the overall scale of HGT and the cumulative impact of acquired genes on the evolution of these organisms ...
Phenotypic and Genetic Divergence among Poison Frog Populations in a Mimetic Radiation
(2013)
The evolution of Müllerian mimicry is, paradoxically, associated with high levels of diversity in color and pattern. In a mimetic radiation, different populations of a species evolve to resemble different models, which can ...
A dominant allele controls development into female mimic male and diminutive female ruffs
(2013-12)
Maintaining polymorphisms for genes with effects of ecological significance may involve conflicting selection in males and females. We present data from a captive population of ruffs (Philomachus pugnax) showing that a ...
Genetic mapping of the female mimic morph locus in the ruff
(2013)
Background
Ruffs (Aves: Philomachus pugnax) possess a genetic polymorphism for male mating behaviour resulting in three permanent alternative male reproductive morphs: (i) territorial ‘Independents’, (ii) non-territorial ...
Nicotine exposure caused significant transgenerational heritable behavioral changes in Caenorhabditis elegans
(2013-09)
Passive and active exposure to tobacco smoking among youth is directly associated with immediate as well as long-term health deterioration. Despite all public health policies and efforts, the percentage of teenage smokers ...
Deep Sequencing Reveals Transcriptome Re-Programming of Cells to the Elicitation with Methyl Jasmonate
(2013)
Background
Plant cell culture represents an alternative source for producing high-value secondary metabolites including paclitaxel (Taxol®), which is mainly produced in Taxus and has been widely used in cancer chemotherapy. ...