Download or read book Differential Expression of Growth Genes in the Liver and White Muscle of Small and Large Rainbow Trout Oncorhynchus Mykiss Produced in Two Seasons and Co localization with Quantitative Trait Loci written by Andrea Kocmarek and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gene Expression in the Liver of Rainbow Trout Oncorhynchus Mykiss During the Stress Response written by Tracey S. Momoda and published by . This book was released on 2006 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extent to which responses to stress are maladaptive or adaptive to the long-term survival of fish remains to be better understood. The aim of this study was to identify differentially expressed genes in the livers of rainbow trout, Oncorhynchus mykiss, responding to an experimental stressor. Gene expression responses were measured using an oligonucleotide microarray specific for Oncorhynchus mykiss, to highlight genes responding to a stressor and to serve as a basis for hypothesis development. We conducted replicate experiments at two different times. In both experiments, fish exposed to a three-hour stressor were compared to control (unstressed) fish. In the second experiment, there were additional treatments of fish that were exposed to only a half-hour of stress and of fish sampled 21 hours after experiencing a three-hour stressor. This 21 hour post-stress treatment was a means to study gene expression during recovery from stress. Plasma cortisol was measured to document the physiological stress response of the fish. Real-time PCR (qPCR) of candidate genes was used to validate the microarray findings. In both experiments the microarray revealed many genes with differential expression after three hours of stress. The genes we report as differentially expressed met a criteria of at least a 1.4 fold change and a statistical difference (p=0.05) from control levels of expression. Among these, five genes responded similarly in both experiments, suggesting that they are robust indicators of stress. These genes are a major histocompatibility complex class I molecule (MHCI), JunB, glucose 6-phosphatase (G6Pase), nuclear protein 1 (Nupr1) and tumor necrosis factor decoy receptor (TNFDR). Interestingly, transcripts of Nupr1 did not return to control levels in the 21 hours after stress. In fact, the transcripts continued to increase during recovery.
Download or read book GENETIC COVARIATION BETWEEN EMBRYONIC DEVELOPMENTAL RATE AND PRECOCIOUS MATURATION IN RAINBOW TROUT ONCORHYNCHUS MYKISS written by Colin Richardson and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on the Growth Hormone regulated Gene Expression of C EBP Isoforms and Their Relationship with IGF ll Gene Expression in the Liver of Rainbow Trout Oncorhynchus Mykiss written by Hung-Chieh Lo and published by . This book was released on 2009 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Linkage Studies in Rainbow Trout Oncorhynchus Mykiss written by Maria Fernanda Rodriguez and published by . This book was released on 2003 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization and Expression of Rainbow Trout Oncorhynchus Mykiss Growth Hormone Family Genes written by Bih-Ying Yang and published by . This book was released on 1997 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Genetic and Gene Expression Analysis of Growth in Rainbow Trout Oncorhynchus Mykiss written by Brendan F. Wringe and published by . This book was released on 2009 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization and Expression of Rainbow Trout Oncorhynchus Mykiss Growth Hormone Family Genes written by Bih-Ying Yang and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybridization Between Yellowstone Cutthroat Trout and Rainbow Trout Alters the Expression of Muscle Growth Related Genes and Their Relationships with Growth Patterns written by Carl O. Ostberg and published by . This book was released on 2015 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybridization creates novel gene combinations that may generate important evolutionary novelty, but may also reduce existing adaptation by interrupting inherent biological processes, such as genotype-environment interactions. Hybridization often causes substantial change in patterns of gene expression, which, in turn, may cause phenotypic change. Rainbow trout (Oncorhynchus mykiss) and cutthroat trout (O. clarkii) produce viable hybrids in the wild, and introgressive hybridization with introduced rainbow trout is a major conservation concern for native cutthroat trout. The two species differ in body shape, which is likely an evolutionary adaptation to their native environments, and their hybrids tend to show intermediate morphology. The characterization of gene expression patterns may provide insights on the genetic basis of hybrid and parental morphologies, as well as on the ecological performance of hybrids in the wild. Here, we evaluated the expression of eight growth-related genes (MSTN-1a, MSTN-1b, MyoD1a, MyoD1b, MRF-4, IGF-1, IGF-2, and CAST-L) and the relationship of these genes with growth traits (length, weight, and condition factor) in six line crosses: both parental species, both reciprocal F1 hybrids, and both first-generation backcrosses (F1 x rainbow trout and F1 x cutthroat trout). Four of these genes were differentially expressed among rainbow, cutthroat, and their hybrids. Transcript abundance was significantly correlated with growth traits across the parent species, but not across hybrids. Our findings suggest that rainbow and cutthroat trout exhibit differences in muscle growth regulation, that transcriptional networks may be modified by hybridization, and that hybridization disrupts intrinsic relationships between gene expression and growth patterns that may be functionally important for phenotypic.
Download or read book Temperature and Genetic Effects on Growth Body Shape and Sprint Swim Speed in Rainbow Trout written by Christopher Steven Duke and published by . This book was released on 2021 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultimate phenotype for a given trait results from the combined influences of underlying genetics and environmental factors; predicting how organisms respond to changing environments thus depends on understanding the relative impacts of genes and environmental variables on phenotypes. Here, I explore how changes in one of the most fundamental environmental variables, temperature, impact phenotypes with strong survival implications for rainbow trout (Oncorhynchus mykiss), and explore the underlying genetic architecture associated with phenotypic change in response to temperature. In this dissertation, I begin by comparing responses of growth, size, body shape, and sprint swimming speed phenotypes to rearing at 10° C and 18° C in two geographically disparate, semi-wild clonal strains of O. mykiss (Whale Rock clonal line, from California, and Swanson clonal line, from Alaska), compared to two clonal strains with hatchery origins (Arlee and Hot Creek clonal lines). I find that Whale Rock and Swanson overall show the greatest between-line differences in these phenotypes, and vary notably in the nature and magnitude of their plastic response to temperature. I then explore the influence of 10° C and 18° C rearing temperature on the location of body fins that potentially influence sprint swimming speeds (dorsal fin, anal fin, and pelvic fins) at 32 and 35 weeks of age in Whale Rock and Swanson clonal lines, with Hot Creek as a hatchery-origin clonal line for comparison. I find complex patterns of variation in fin location at both ages, both within clonal line at different temperatures and between clonal lines within the same temperature. Of the fin locations measured, only one was found to significantly influence sprint swimming speed, which was the distance between the operculum and the most anterior margin of the anal fin. Whale Rock and Swanson showed distinctly disparate differences in fin metrics, again suggesting their suitability for exploring genetic architecture of these phenotypes. Finally, I use a quantitative genetic approach to identify quantitative trait loci (QTL), finding evidence for significant and suggestive QTL influencing the measured phenotypes, as well as evidence for temperature-specific QTL.
Download or read book Expression Vectors for Gene Transfer in Fish written by Yunhan Hong and published by . This book was released on 1993 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiber Growth and DNA RNA and Protein Concentrations in White Muscle Tissues as Indicators of Growth in Diploid and Triploid Rainbow Trout Oncorhynchus Mykiss written by Arul Victor Suresh and published by . This book was released on 1996 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flesh Qualities and Muscle Fiber Characteristics of Diploid and Triploid Rainbow Trouts Oncorhynchus mykiss written by and published by Cuvillier Verlag. This book was released on 2006-08-22 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flesh qualities and muscle characteristics were investigated in the diploid (2n) and triploid (3n) rainbow trouts (Oncorhynchus mykiss) under normal production (Experiment trout station Relliehausen, University of Göttingen) and commercial production conditions in 2003-2005 year classes. The diploid and triploid fishes were divided into 5 stages by age and body weight. For all flesh qualities the 170 g until portion size (400 g) rainbow trouts the polyploidy induction did not have a great influence on all performances. Only the final body weight and carcass percentage of the third group (75 weeks old) which the triploid fishes were significantly higher than the diploid fishes (390g vs. 430g and 73 % vs. 74 %, respectively). The others qualities, the diploid fishes had better than the triploid fishes such as: a redness value of fillets, water holding capacity and water content in muscle. In the maturing rainbow trouts (95 weeks and 6-7 years old), the parameters were significantly higher in the triploid fishes than in the diploid fishes. The final body weight of the biggest group in the 2n and 3n fishes were 4,200g and 5,900g respectively. Both 95 weeks and 6-7 years old fishes, the redness values were higher in the triploid fishes than in the diploid fishes (12.4 vs. 6.02 and 18.0 vs. 13.8). Also we found better results of WHC, cooking yield and tenderness in the triploid compared to the diploid fillets. As for the pH and EC values from 5 min to 5 hr. after slaughter, there were no differences observed between 2n and 3n. The results did not indicate PSE conditions of the meat. With respect for muscle characteristics significant differences of ploidy fishes were found. In general, white and intermediate muscle fibers areas were bigger in triploid than in diploid fishes. These results were found both in the dorsal and pelvic fins samples. As for the red muscle fibers no clear effect of polyploidy were observed.
Download or read book Growth Dynamics of Rainbow Trout Oncorhynchus Mykiss Epaxial Muscle written by Anders Kiessling and published by . This book was released on 1990 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Exercise on Muscle Growth and Muscle specific Gene Expression in the Common Carp Cyprinus Carpio L and Rainbow Trout Oncorhynchus Mykiss Walbaum written by Christopher Ian Martin and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Characterization of Rainbow Trout Oncorhynchus Mykiss Chemokine 2 CK 2 electronic Resource written by Shathi Eshaque and published by University of Waterloo. This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship between growth and protein turnover rates and nucleic acids in the liver of rainbow trout Oncorhynchus mykiss during development written by J. PERAGON and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
