Schriften zu Genetischen Ressourcen - Genres

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Federal Information System Genetic Resources (BIG) BIG supports the user with a comprehensive thesaurus containing about 120 descriptors. For searching plant names a repository with taxonomic information about wild and cultivated plants can be used (see also BOOS et. al., this volume). Example: Daucus carota 320 Dispersed and heterogeneous data bases are queried simultaneously Reference: Florkart, BfN Reference: Florkart, Copyright: T. Muer BIG - search results contain inter alia information about use, holding institutions, distribution maps, photographs, ... Reference: Systax, Copyright: St. Müller
M. SCHOLZ, B. RUGE and B. HACKAUF Identification of novel interspecific hybrids between Hordeum vulgare and Hordeum bulbosum M. SCHOLZ, B. RUGE and B. HACKAUF 1 Abstract A crossing programme was initiated to produce interspecific triploid hybrids between diploid Hordeum vulgare cultivars (2n = 2x = 14) and some tetraploid H. bulbosum accessions (2n = 4x = 28). The hybrid nature of the progeny was confirmed by means of cytological, biochemical and molecular analysis. Most of the plants examined contained 21 chromosomes. The chromosome number of the remainder varied from 19 to 20. This indicates that aneuploid hybrids occurred by elimination of chromosomes. Using isozyme and SSR markers, between two and four H. bulbosum chromosomes could be identified in the offspring. To obtain diploid recombinant barley genotypes with introgressed H. bulbosum chromatin interspecific hybrids have to be selfed or backcrossed to H. vulgare. Introduction Hordeum bulbosum belongs to the secondary genepool of Hordeum. Since it contains a variety of different resistance genes, H. bulbosum has potential value as genetic resource for barley breeding. Recombinants between H. vulgare L. and H. bulbosum L. have rarely been obtained due to chromosome instability in hybrids, low intergenomic chromosome pairing and low crossing over (PICKERING 1992). Nevertheless, interspecific crosses have resulted in the transfer of novel resistance genes conferring resistance to powdery mildew (KASHA et al. 1996), leaf rust (PICKERING et al. 2000) and the soilborne virus complex (RUGE et al. 2000), respectively. Using molecular markers, the dominantly inherited resistances were mapped on H. bulbosum introgressions located on chromosomes 2HL, 2HS and 6HS, respectively. As a starting point for the introgression of H. bulbosum genes into barley, triploid hybrids between H. vulgare (2n = 14) and H. 1 Federal Centre for Breeding Research on Cultivated Plants Institute of Agricultural Crops Rudolf-Schick-Platz D-18190 Groß Lüsewitz, Germany 321
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Schriften zu Genetischen Ressourcen
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Preface Preface In October 2001, th
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Preface Asia. M. CHAUVET (Montpelli
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Table of contents Table of contents
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Table of contents Utilisation of pl
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Table of contents Federal Informati
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Recollections of Rudolf Mansfeld Af
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Recollections of Rudolf Mansfeld Ma
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Recollections of Rudolf Mansfeld MA
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R. Mansfeld’s scientific influenc
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History of Plant Genetic Resources
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History of Plant Genetic Resources
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Mansfeld's Encyclopedia of Agricult
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The "Mansfeld Database" in its nati
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The "Mansfeld Database" in its nati
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A Species Compendium for Plant Gene
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Some notes on problems of taxonomy
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Theoretical and practical problems
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Development of Vavilov’s concept
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Multiple domestications and their t
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Ethnobotanical studies on cultivate
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Inventorying food plants in France
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The neglected diversity of immigran
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Unconscious selection in plants und
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R. V. BOTHMER, TH. V. HINTUM, H. KN
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Diversity of African vegetable Sola
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Molecular diversity studies in two
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The history of the medieval vegetab
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Paintings from the 16 th to 18 th c
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Sugar beets and related wild specie
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Utilisation of plant genetic resour
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Proof of long-term stored potato ge
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Structure of table ScientificName L
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Genebank work for preservation of t
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Genebank work for preservation of t
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206 S. CHEBOTAR, M.S. RÖDER, V. KO
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Molecular diversity in the genus Am
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A. DIEDERICHSEN, D. KESSLER, P. KUS
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A. DIEDERICHSEN, D. KESSLER, P. KUS
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D. ENNEKING and H. KNÜPFFER Fishin
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References D. ENNEKING and H. KNÜP
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A.A. FILATENKO, K. PISTRICK, H. KN
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Pyrus L. Secale L. Sorbus L. Trifol
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Vigna angularis (Willd.) Ohwi et Oh
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Lycopersicon Mill. Nicotiana L. Sal
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Pyrus communis L. Trachomitum sarma
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R. macropetalus Dougl. ex Hook. R.
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U. FREYTAG, G.H. BUCK-S ORLIN and B
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Tab. 1: Actual European strawberry
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H. GRAUSGRUBER, H. BOINTNER, R. TUM
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Page 294 and 295: Molecular mapping and geographical
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Page 308 and 309: Mansfeld's Encyclopedia and Databas
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Page 312 and 313: The Information System On Plant Gen
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Page 316 and 317: Characterisation of spring barley g
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Page 328 and 329: Central register for biological res
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Page 332 and 333: Federal Information System Genetic
Page 336 and 337: Identification of novel interspecif
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Page 354 and 355: List of participants List of Partic
Page 356 and 357: List of participants Fischer, Manfr
Page 358 and 359: List of participants Lühs, Wilfrie
Page 360 and 361: List of participants Ruge, Brigitte
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Schriften zu Genetischen Ressourcen - Genres

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