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Using Shewanella Baltica Ecotypes As A Model For Transcriptional Variation At The Population Level
(Biology, 2011-03-03)
Eukaryotic studies have shown considerable transcriptional variation among individuals of the same population. Owing to the cost of sequencing entire eukaryotic genomes, tested organisms were assumed to be genomically ...
A Biochemical Approach To Determine The Target Site Recognition Mechanism Of The R2 Retrotransposable Elements
(Biology, 2011-07-14)
Non-LTR Retrotransposons (NLRs) are selfish mobile genetic elements which parasitize the genomes of many organisms including humans. These elements transpose through an RNA intermediate and integrate directly into their ...
Environmental Regulation Of Stomate-based Defense Against Bacterial Infection in Arabidopsis
(Biology, 2011-03-03)
Stomata are natural openings in the plant epidermis responsible for gas (O2 and CO2) exchange between plant interior and environment. They are formed by a pair of guard cells, which are able to close the stomatal pore in ...
Reproductive Behaviors Of Two Congeneric, Sympatric Jumping Spiders: Gene Flow Barriers And Polyandry
(Biology, 2007-08-23)
This two part study compares aspects of jumping spider reproductive behavior and their implications 1) as gene flow barriers during the process of speciation and 2) in the occurrence of polyandry. Courtship behaviors of ...
Arctic Arthropod Communities In Habitats Of Differing Shrub Abundance
(Biology, 2012-07-25)
Recent global warming, which has been severe in the Arctic, has caused advancement in the timing of snowmelt and expansion of shrubs into open tundra. Such an altered climate may directly and indirectly (via effects on ...
Bioinformatic Identification Of Small RNA (and Their Targets) In The Testis Of Clawed Frogs (Xenopus And Silurana): Implications For Male Fertility
(Biology, 2012-04-11)
Chapter one sets the stage for this project, which lies somewhere near the intersection of speciation, genome, and reproductive biology. Chapter two identifies miRNA with shared expression profiles (Silurana and Xenopus). ...
The CCHC Motif In Non-LTR Retrotransposons Modulates RNA Associated Protein Conformational Changes
(Biology, 2014-03-10)
Non-LTR retrotransposons encode a conserved cysteine histidine motif of undetermined function. The spacing of the cysteines and histidine residues in the motif is CX₃CX₇HX4C. The site specific non-LTR retrotransposon R2Bm ...
Nematodes With Three Genders: Models For The Evolution Of Mating Systems, Parasitism And Aging
(Biology, 2013-10-23)
All living organisms reproduce and age. These are the two basic facets of life, but in many aspects poorly understood. The majority of the species are male/female. The proportion of genders in population can vary significantly ...
Differentiation Of Gene Expression In Behaviorally Isolated Black And Brown Morphs Of Drosophila elegans
(Biology, 2007-09-17)
Pre-zygotic isolation has been recognized as the primary form of incipient speciation, with behavioral isolation as one of its most significant manifestations. In spite of intensive research on behavioral isolation, its ...
Feasibility For Utilization Of A Freshwater Pulmonate Snail, Physa acuta, As A Model Organism For Environmental Toxicity Testing, With Special Reference To Cadmium Ion Toxicity
(Biology, 2007-08-23)
The benefits of developing the pond snail, Physa acuta, as a model species for testing acute and chronic toxicity of aquatic pollutants include its wide North American distribution, ease of field collection and laboratory ...