Regions of unusual statistical properties as tools in the search for horizontally transferred genes in Escherichia coli

Abstract

A total of 75 specimens belonging to four species of thalassinoids were collected in the intertidal and estuarine zones of two localities along the Pacific coast of Mexico. Callianassa tabogensis is recorded for the first time in Mexico, and is transferred to the genus Neotrypaea. Material of Callichirus is assigned to Callichirus seilacheri with some doubts due to taxonomic problems related to this genus in the eastern Pacific. Neocallichirus cf. grandimana, an amphi-American species described for the western Atlantic and previously reported in Ecuador and along the Pacific coast of Panama and Colombia, is reported for the first time in Mexico. Upogebia dawsoni is recorded for the second time from the coast of Jalisco. An updated list of Axiidea and Gebiidea known from the Mexican Pacific is provided, including 35 species. " Marine Biological Association of the United Kingdom, 2013.",,,,,,"10.1017/S0025315413001495",,,"http://hdl.handle.net/20.500.12104/44117","http://www.scopus.com/inward/record.url?eid=2-s2.0-84896443199&partnerID=40&md5=52f0254b2d16003d35a7bbe2c9f002b9",,,,,,"2",,"Journal of the Marine Biological Association of the United Kingdom",,"369

388",,"94",,"Scopus

WOS",,,,,,"Axiidea; Gebiidae; Mexican Pacific; Mud shrimps; New records",,,,,,"Records of mud shrimps (Crustacea: Decapoda: Axiidea and Gebiidae) from Pacific Mexico",,"Article" "45912","123456789/35008",,"Vargas Guerrero, B., Instituto de Enfermedades Crónico-Degenerativas, Departamento de Biología Molecular y Genómica, C.U.C.S., Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; García López, P.M., Departamento de Botánica y Zoología, C.U.C.B.A., Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; González Santiago, A.E., Instituto de Enfermedades Crónico-Degenerativas, Departamento de Biología Molecular y Genómica, C.U.C.S., Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; Rosales Domínguez, J.A., Instituto de Enfermedades Crónico-Degenerativas, Departamento de Biología Molecular y Genómica, C.U.C.S., Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; Gurrola Díaz, C.M., Instituto de Enfermedades Crónico-Degenerativas, Departamento de Biología Molecular y Genómica, C.U.C.S., Universidad de Guadalajara, Guadalajara, Jalisco, Mexico",,"Vargas Guerrero, B.

García Lopez, P.M.

Gonzalez Santiago, A.E.

Rosales Dominguez, J.A.

Gurrola Diaz, C.M.",,"2013",,"Objective: The high global incidence of type 2 diabetes has challenged researchers to establish animal models that resemble the chronic stage observed in type 2 diabetes patients. One such model is induced by neonatal streptozotocin (n-STZ) administration to rat pups at 0, 2, or 5 days after birth. In this study, we assessed Ins-1 gene expression and tissue insulin levels as well as serum concentration of glucose and insulin, insulin resistance, and histological changes of the islets of Langerhans in n5-STZ rats after 20-weeks post-induction. Methods: Wistar rat pups were randomly distributed into a control group and a streptozotocin-induced group. Experimental induction involved a single intraperitoneal injection of streptozotocin (150 mg/kg) into neonates at five days after birth. Results: At 20 weeks post-induction, streptozotocin-induced rats exhibited increased serum glucose levels, reduced serum insulin levels, impaired glucose metabolism and insulin resistance compared to control rats. Histologically, streptozotocin-induced rats exhibited atrophic islets, vacuolization, and significantly fewer insulin-positive cells. Ins-1 gene expression was significantly decreased in n5-STZ rats in comparison to the control group. Conclusion: Our findings support that the n5-STZ model 20 weeks post-induction represents an appropriate experimental tool to study T2D and to evaluate novel therapeutic agents and targets that involve insulin gene expression and secretion, as well as complications caused by chronic diabetes.",,,,,,"10.4067/S0716-97602013000300009",,,"http://hdl.handle.net/20.500.12104/44133","http://www.scopus.com/inward/record.url?eid=2-s2.0-84888156893&partnerID=40&md5=37e9524420222f68e97996e20321bdad

http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=prem&AN=24346076",,,,,,"3",,"Biological Research",,"281

288",,"46",,"Scopus

MEDLINE

WOS

ScIELO",,,,,,"Chronic hyperglycemia; In vivo diabetes models; Ins-1 gene; Type 2 diabetes / Biology",,,,,,"Reduction of Ins-1 gene expression and tissue insulin levels in n5- STZ rats",,"Article" "45931","123456789/35008",,"Putonti, C., Department of Computer Science, University of Houston, Houston, TX 77204-3058, United States, Department of Biology and Biochemistry, University of Houston, Houston, TX 77204-5001, United States; Chumakov, S., Department of Physics, University of Guadalajara, Guadalajara, Jalisco 44420, Mexico; Chavez, A., Department of Physics, University of Guadalajara, Guadalajara, Jalisco 44420, Mexico; Luo, Y., Department of Computer Science, University of Houston, Houston, TX 77204-3058, United States; Graur, D., Department of Biology and Biochemistry, University of Houston, Houston, TX 77204-5001, United States; Fox, G.E., Department of Biology and Biochemistry, University of Houston, Houston, TX 77204-5001, United States; Fofanov, Y., Department of Computer Science, University of Houston, Houston, TX 77204-3058, United States, Department of Biology and Biochemistry, University of Houston, Houston, TX 77204-5001, United States",,"Putonti, C.

Chumakov, S.

Chavez, A.

Luo, Y.

Graur, D.

Fox, G.E.

Fofanov, Y.",,"2006",,"The observed diversity of statistical characteristics along genomic sequences is the result of the influences of a variety of ongoing processes including horizontal gene transfer, gene loss, genome rearrangements, and evolution. The rate at which various processes affect the genome typically varies between different genomic regions. Thus, variations in statistical properties seen in different regions of a genome are often associated with its evolution and functional organization. Analysis of such properties is therefore relevant to many ongoing biomedical research efforts. Similarity Plot or S-plot is a Windows-based application for large-scale comparisons and 2D visualization of similarities between genomic sequences. This application combines two approaches wildly used in genomics: window analysis of statistical characteristics along genomes and dot-plot visual representation. S-plot is effective in detecting highly similar regions between two genomes. Within a single genome, S-plot has the ability to identify highly dissimilar regions displaying unusual compositional properties. The application was used to perform a comparative analysis of 50+ microbial genomes as well as many eukaryote genomes including human, rat, mouse, and drosophila. We illustrate the uses of S-Plot in a comparison involving Escherichia coli K12 and E. coli O157:H7. " 2006 American Institute of Physics.