W. Friedt

University of Giessen

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Frank Ordon

Julius Kühn-Institut

Rod J. Snowdon

University of Giessen

W. Lühs

University of Giessen

Renate Horn

University of Rostock

Benjamin Wittkop

University of Giessen

Wilfried Lühs

University of Giessen

Fatih Seyis

Recep Tayyip Erdoğan University

Jutta Ahlemeyer

Lufthansa (Germany)

Ralf Uptmoor

University of Rostock

Florin Daniel Lipşa

"Ion Ionescu de la Brad" Iasi University of Life Sciences

Cooperative Institutions

University of Giessen

110

Julius Kühn-Institut

Leibniz Institute of Plant Genetics and Crop Plant Research

University of Göttingen

Universität Hamburg

Institute of Field and Vegetable Crops

Leibniz Association

Institut für Bodenkultur und Pflanzenbau

University of Novi Sad

University of Rostock

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Estimation and use of genetic diversity in german winter barley breeding employing genome wide association studies (GWAS)

Frank Ordon J. Rode Tina Lüders Jutta Ahlemeyer Viktor Korzun

Genome-wide Association Study

Genetic Association

Association (psychology)

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Amplified fragment length polymorphism of Puccinia graminis f. sp. tritici populations in Ethiopia

Ethiopian journal of agricultural sciences (2013)

Belayneh Admasu W. Friedt Frank Ordon

The genetic structure of forty eight Ethiopian Puccinia graminis f. sp. tritici (Pgt) isolates, representing three major wheat growing regions was investigated using 15 AFLP primer combinations. AFLP analysis generated large number of polymorphic bands (markers) and allowed easy identification of the different genotypes. The study showed a high level of genetic diversity within the isolates. There was no population subdivision based on origin of isolates as reflected by a low coefficient of genetic differentiation (0.107), and a single dendrogram cluster consisting of all isolates except three. Gene flow among populations was estimated to be high. The AFLP analysis characterized the isolates to have high genetic diversity and homogeneity across regions. The developed AFLP fingerprints for the Ethiopian Pgt isolates reported herein could support the breeding program to develop strategies for the deployment of resistance genes in its continued effort to minimize the impact of stem rust on wheat in Ethiopia. Keywords: AFLP, wheat, stem rust, genetic diversity, population differentiation

Dendrogram

Stem rust

Puccinia

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Molecular breeding for virus resistance in cereals

HAL (Le Centre pour la Communication Scientifique Directe) (2008)

F. Ordon Dragan Perović Antje Habekuβ Ilona Krämer Djabbar Hariri

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In vitro breeding of high‐linolenic, doubled‐haploid lines of linseed (Linum usitatissimum L.) via androgenesis

Plant Breeding (1995)

W. Friedt C. Bickert H. Schaub

Abstract In the course of a breeding programme for high‐linolenic‐acid linseed (oilflax, Linum usitatissimum L.) doubled‐haploid lines (DH‐lines) of three F 1 hybrids were generated using an anther‐culture technique. A total of 82 DH‐lines were generated and multiplied in 1993, of which 39 were suitable for testing in a repeated field trial in 1994. Yield, fat content and fatty‐acid composition were determined. The yield of the DH‐lines was not significantly different from that of respective mid‐parent values. Fatty‐acid composition and fat content showed remarkable variation, and DH‐lines exceeded cross parents in some cases for both fat content and linolenic‐acid proportion. Superior DH‐lines surpassed mid‐parent linolenic‐acid‐content values by 4.5% and fat content by 1.9%. The results indicate that anther culture is a useful tool in linseed breeding.

Linum

Linolenic acid

Doubled haploidy

10.1111/j.1439-0523.1995.tb01242.x

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Citations (40)

QTL analysis of tolerance to a German strain of BYDV-PAV in barley (Hordeum vulgare L.)

Theoretical and Applied Genetics (2001)

Konstanze Scheurer W. Friedt W. Huth Robbie Waugh Frank Ordon

Barley yellow dwarf

Luteovirus

Doubled haploidy

10.1007/s001220100632

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Citations (62)

Efficient interspecific hybridization in the genusHelianthus via “embryo rescue” and characterization of the hybrids

Theoretical and Applied Genetics (1991)

R. Kräuter Lars M. Steinmetz W. Friedt

Embryo rescue

Interspecific hybrids

10.1007/bf00588609

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Citations (69)

IMPLEMENTATION OF MOLECULAR TECHNIQUES (RAPDS, AFLPS) ON CAMOMILE (CHAMOMILLA RECUTITA (L.) RAUSCH.) FOR GENOTYPING AND MARKER DEVELOPMENT

Acta Horticulturae (2004)

C. Wagner R. Marquard W. Friedt Frank Ordon

10.17660/actahortic.2004.629.66

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Molecular Markers for Gene Pyramiding and Disease Resistance Breeding in Barley

Springer eBooks (2007)

W. Friedt Frank Ordon

Germ plasm

Marker-Assisted Selection

Plant Breeding

10.1007/978-1-4020-6297-1_4

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Citations (30)

New Syntheses with Oils and Fats as Renewable Raw Materials for the Chemical Industry

Angewandte Chemie International Edition (2000)

Ursula Biermann W. Friedt Siegmund Lang Wilfried Lühs Guido Machmüller

Oils and fats are the most important renewable raw materials for the chemical industry. Hitherto, industrial oleochemistry has concentrated predominantly on the carboxy functionality of fatty acids but, more recently, modern synthetic methods have been applied extensively to fatty compounds for the selective functionalization of the alkyl chain. Radical, electrophilic, nucleophilic, and pericyclic as well as transition metal catalyzed additions to the C-C double bond of, for example, oleic acid as the prototype of a readily accessible, unsaturated fatty acid have led to a large number of novel fatty compounds from which interesting properties are expected. Functionalization of C-H bonds in the alkyl chain is also feasible with remarkable selectivity. Effective and highly versatile catalysts for the metathesis of esters of unsaturated fatty acids have been developed, which lead to new and interesting omega-unsaturated fatty acids. The epoxidation of unsaturated fatty acids has been developed extensively. Enzymatic reactions allow syntheses with high selectivity and yield of mono- and diglycerides and esters of carbohydrates with a variety of surfactant properties. Regio- and enantioselective microbial hydrations and hydroxylations widen the spectrum of selective reactions. Of considerable significance is that, with the use of gene technology, natural oils and fats have been improved significantly and will be improved still further, insofar as they show a more uniform and often unusual fatty acid spectrum. Numerous fatty acids are now available in a purity which makes them attractive for synthesis and as raw materials for the chemical industry.

Ricinoleic acid

10.1002/1521-3773(20000703)39:13<2206::aid-anie2206>3.0.co;2-p

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Citations (691)

Identification of marker-trait associations in the German winter barley breeding gene pool (Hordeum vulgare L.)

Molecular Breeding (2011)

J. Rode Jutta Ahlemeyer W. Friedt Frank Ordon

Linkage Disequilibrium

Association mapping

Plant Breeding

Trait

Genome-wide Association Study

10.1007/s11032-011-9667-6

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Citations (43)