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Theses/Dissertations

Life Sciences

Gene expression

LSU Master's Theses

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Effects Of Caste On The Constitutive And Induced Expression Of Genes Associated With Immunity And Detoxification In Formosan Subterranean Termites, Dawn M. Simms Jan 2013

Effects Of Caste On The Constitutive And Induced Expression Of Genes Associated With Immunity And Detoxification In Formosan Subterranean Termites, Dawn M. Simms

LSU Master's Theses

Simms, Dawn M., B.S., Louisiana State University, 1997 Master of Science, Spring Commencement, 2013 Major: Entomology Effects of Caste on the Constitutive and Induced Expression of Genes Associated with Immunity and Detoxification in Formosan Subterranean Termites Thesis directed by Associate Professor Claudia Husseneder Pages in thesis, 74. Words in abstract, 268. ABSTRACT Formosan subterranean termites (FSTs) live in dense populations and nest conditions that are conducive to microbial growth. Furthermore, termites are exposed to potential toxic substances in the soil and in their lignocellulose diet. These characteristics, in combination with the specialized caste system of FSTs, make this termite a …


Effects Of Serum Addition To Culture Medium On Gene Expression In Day-7 And Day-14 Bovine Embryos, Jaime Manuel Angulo Campos Jan 2010

Effects Of Serum Addition To Culture Medium On Gene Expression In Day-7 And Day-14 Bovine Embryos, Jaime Manuel Angulo Campos

LSU Master's Theses

The addition of serum to embryo culture media may alter gene expression and trigger development of Large Offspring Syndrome. The objectives of this study were to determine gene expression levels in embryos cultured in the absence or presence of 5% calf serum and compare these expression patterns to in vivo derived embryos (IVD), and to determine the effects of serum on the length of day-14 embryos. Abattoir derived oocytes were fertilized and cultured in mSOFaa. At 72 hours post-insemination (hpi), embryos were randomly allocated into two treatments: mSOFaa without and with 5% calf serum. Embryos were then cultured to 168 …


Effect Of Culture Conditions On Gene Expression In Manipulated Bovine Embryos, Megan Nicole Purpera Jan 2007

Effect Of Culture Conditions On Gene Expression In Manipulated Bovine Embryos, Megan Nicole Purpera

LSU Master's Theses

Numerous studies have reported aberrant gene expression levels attributed to suboptimal in vitro culture conditions presented to embryos. Since the culture environment is a common aspect of both in vitro production (IVP) and nuclear transfer (NT), research focusing on the in vitro culture system will have the potential to improve both techniques. This study investigated the effects of different culture systems and protein sources on the developmental competence of IVP embryos measured by cleavage and blastocyst rates, cell number, and relative abundance of oct-4, nanog, connexin 43, and GLUT-1 transcripts when compared to in vivo embryos. Experiment 1 compared IVP …