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The genomes of two key bumblebee species with primitive eusocial organization
(2015-04-24)
Background
The shift from solitary to social behavior is one of the major evolutionary transitions. Primitively eusocial bumblebees are uniquely placed to illuminate the evolution of highly eusocial insect societies. ...
A depauperate immune repertoire precedes evolution of sociality in bees
(2015-04-24)
Background
Sociality has many rewards, but can also be dangerous, as high population density and low genetic diversity, common in social insects, is ideal for parasite transmission. Despite this risk, honeybees and other ...
Fishing For The Evolutionary Bases Of Female Ornamentation
(East Carolina University, 2015)
Sexual dimorphism, or phenotypic differentiation of the sexes, is widespread amongst animals. It is understood mainly in the context of sexual selection, i.e. selection on mating success, with such selection typically ...
Investigating the Role of CtBP in Colorectal Cancer
(2015-04-29)
Recent studies in breast cancer tissue have demonstrated that C-terminal binding protein (CtBP) over-expression induces stem cell-like features and genome instability; whereas CtBP depletion or caloric restriction reverses ...
Hormone Exposure During Pregnancy and Maternal Care
(East Carolina University, 2015-12-17)
It is suspected that prenatal hormones can affect maternal care, which has important implications for the neurological development of pups. To determine if the altered hormone levels affected maternal care, pregnant dams ...
De Novo Transcriptome Assembly and Comparative Analysis Elucidate Complicated Mechanism Regulating Astragalus chrysochlorus Response to Selenium Stimuli
(2015-10)
Astragalus species are medicinal plants that are used in the world for years. Some Astragalus species are known for selenium accumulation and tolerance and one of them is Astragalus chrysochlorus, a secondary selenium ...
Genetic Architecture of Conspicuous Red Ornaments in Female Threespine Stickleback
(2015-12)
Explaining the presence of conspicuous female ornaments that take the form of male-typical traits has been a longstanding challenge in evolutionary biology. Such female ornaments have been proposed to evolve via both ...
Nuclear Progestin Receptor (Pgr) Knockouts in Zebrafish Demonstrate Role for Pgr in Ovulation but Not in Rapid Non-Genomic Steroid Mediated Meiosis Resumption
(2015-03)
Progestins, progesterone derivatives, are the most critical signaling steroid for initiating final oocyte maturation (FOM) and ovulation, in order to advance fully-grown immature oocytes to become fertilizable eggs in basal ...
Deep sequencing reveals important roles of microRNAs in response to drought and salinity stress in cotton
(2015-02)
Drought and salinity are two major environmental factors adversely affecting plant growth and productivity. However, the regulatory mechanism is unknown. In this study, the potential roles of small regulatory microRNAs ...
Assessing Morphological Variability in Silversides along the Mid-Atlantic Bight
(2015)
Inland silversides (Menidia beryllina) and Atlantic silversides (Menidia menidia) are ubiquitous fishes in the estuaries on the east coast of the United States. These species are very similar in appearance and may share ...