Genetic structure and history of Swiss maize ( Zea mays L. ssp. mays ) landraces

Between 1930 and 2003 with emphasis on the 1940s maize landraces (Zea mays L. ssp. mays) from all over Switzerland were collected for maintenance and further use in a new Swiss breeding program. The genetic relationship and diversity among these accessions stored in the Swiss gene bank is largely unknown. Our hypothesis was that due to the unique geographic, climatic, and cultural diversity in Switzerland a diverse population of maize landraces had developed over the past three centuries. The aims were to characterize the genetic diversity of the Swiss landraces and their genetic relationship with accessions from neighbouring regions as well as reviewing their history, collection, and maintenance. The characterization and grouping was based on analyses with ten microsatellite markers. Geographic, cultural, and climatic conditions explained a division in two distinct groups of accessions. One group consisted of landraces collected in the southern parts of Switzerland. This group was related to the Italian Orange Flints. The other group contained accessions from northern Switzerland which were related to Northern European Flints in particular German Flints. Historic evidence was found for a frequent exchange of landraces within the country resulting in a lack of region-specific or landrace-specific genetic groups. The relatively large separation between the accessions, indicated by high F ST (0.42), might be explained partly by a bottleneck during the collection and maintenance phase as well as by geographical and cultural separation of north and south of the country. Due to the high genetic diversity, the accessions here are a potential resource for broadening the European flint poo

The Nature of Knowledge in Composition and Literary Understanding: The Question of Specificity

↵PETER SMAGORINSKY is Assistant Professor, College of Education, University of Oklahoma, 820 Van Vleet Oval, Norman, OK 73019-0. He specializes in classroom literacy.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

Genetic structure and history of Swiss maize (Zea mays L. ssp mays) landraces

ISSN:0925-9864ISSN:1573-510

Entwicklung von Algorithmen fuer die automatische Erkennung von Bildern des Zooplanktons mit Hilfe eines Bildverarbeitungssystems Abschlussbericht

Based on the image processing system IMTRON 2000 and using morphometric parameters of the zooplankton from the Greifswald Bodden and the southern Baltic Sea, an intelligent zooplankton analysis system has been compiled for taxonomic identification, counting and biomass calculation. From digitalized microscope pictures the algorithms for zooplankton classification have been derived. Image processing softwares are described in detail. (WEN)Available from TIB Hannover: F96B689+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); European Union (Euro), Brussels (Belgium)DEGerman

Foerderung von Demonstrationsprojekten fuer die Funknetzverbindung (WLAN) von Hochschulen. Organisation und Betrieb einer Beratungsstelle zum Einsatz drahtloser Kommunikationsinfrastruktur an deutschen Hochschulen Ergebnisse und Erfahrungen. Ergaenzungen zum Abschlussbericht 2000

Available from TIB Hannover: F02B1921 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Organisation und Betrieb einer Beratungsstelle zum Einsatz drahtloser Kommunikationsinfrastruktur an deutschen Hochschulen. Ergebnisse und Erfahrungen Abschlussbericht 2000 der BMBF-Initiative zur Foerderung von Demonstrationsprojekten fuer die Funkvernetzung (WLAN) von Hochschulen

Available from TIB Hannover: F02B570 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman