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  • 1
    Electronic Resource
    Electronic Resource
    Production and Cytogenetical Analysis of a Rye-Cytoplasmic Tetraploid Triticale (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 98 (1987), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A rye-cytoplasmic tetraploid triticale was found in Fs progenies of crosses between tetraploid rye‘No 1323’and hexaploid triticale‘KT 77′. In the tetraploid triticale, two complete rye genomes and two mixed wheat genomes, consisting of the chromosomes 1A. 2A, 4A, 7A, 3B, 5B, and 6B are present. The rye cytoplasm did not affect stability of rye chromosome pairing during metaphase 1, since rye chromosomes participated in pairing irregularities just as did wheat chramosomes, even on a larger scale. The fertility of F0, plants ranged from 0 to 75.6 %, always associated with high grain shrivelling. The analyzed pairing behaviour of induced triploid hybrids from crosses between the tetraploid triticale and diploid rye indicates the presence of at least one wheat-rye translocation in one of the investigated triploid plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1987.tb01117.x
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  • 2
    Electronic Resource
    Electronic Resource
    Identification of the Chromosomes in the ‘Esto’ Set of Rye Trisomics (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 100 (1988), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The original identification of the chromosomes involved in each of the lines of the act of primary trisomics of winter rye variety ‘Esto’ does not correspond with recent results of gene localization studies. Using known morphological marker genes, N-banding and test crossing with the standard translocation tester set, a more precise identification was possible. In the nomenclature of the Triticinae, the lines can be designated as follows: A = 7R; B = 5R; C = 2R; D = 3R; E = 4R; F = 6R; G = 1R.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1988.tb00236.x
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  • 3
    Electronic Resource
    Electronic Resource
    Confirmation of a 1A/1R Wheat-Rye Chromosome Translocation in the Wheat Variety ‘Amigo’ (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 98 (1987), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Differential chromosome staining by using the Giemsa C- banding technique and test crosses have revealed rye chroma tin in the hexaploid wheat variety ‘Amigo’ which resulted from wheat crosses with the octoploid triticale ‘Gaucho’. The results demonstrated a pair of translocated wheat chromosomes involving the short arm of rye chromosome 1R and the long arm of the homoeologous wheat chromosome 1A (1Aq/1Rp translocation). The localization of the translocation breakpoint is supposed 10 be within the centromeric region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1987.tb01090.x
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  • 4
    Electronic Resource
    Electronic Resource
    A universal reference karyotype in rye, Secale cereale L. (1987)
    Springer
    Theoretical and applied genetics 74 (1987), S. 820-826 
    Details
    ISSN: 1432-2242
    Keywords: Haploids ; Dihaploids ; Standard karyotype ; Meiotic configuration ; Rye
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Haploid, dihaploid and tetrahaploid rye plants of the variety ‘Petka’ have been produced to establish a homozygous genotype and karyotype. The morphology, karyotypic characteristics and the metaphase I chromosome behaviour are described demonstrating the utility of the material as a universal standard tester in rye cytogenetics. Clones of several ploidy levels are maintained by long-term in vitro sprout culture. They are available for international testing. Sexual propagation of the clones is possible using a heat treatment procedure to break the self-incompatibility of the homozygotes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00247563
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  • 5
    Electronic Resource
    Electronic Resource
    Rye cytology, cytogenetics and genetics — current status (1986)
    Springer
    Theoretical and applied genetics 72 (1986), S. 721-734 
    Details
    ISSN: 1432-2242
    Keywords: Nuclear cytology ; C-banding ; Chromosome nomenclature ; Gene localization ; Trisomies ; Rye
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Progress in rye karyology is reviewed with respect to chromosome structure, recognition and chromosome nomenclature. Considerable contributions have been brought about by molecular techniques which have even revealed nucleotide sequences of some of the ribosomal DNA. DNA sequence organization correlates with the distribution of major Giemsa C-band regions as well as with N-bands and the binding sites of fluorescent dyes. The several banding patterns permit the classification of rye chromosomes. The increased data and widespread application of banding analysis require a consistent system of chromosome and/or band designation. Therefore, a standard band nomenclature is proposed with reference to the recommendations of the “Paris Conference on Standardization in Human Cytogenetics”. In addition, advances in genetics are summarized and discussed. Based on the original accepted standard karyogram and banding patterns of the rye chromosomes, meanwhile, 120 genes determining several characters have been associated with individual chromosomes and/or chromosome arms, including linkage studies for about 19 arrangements. Most results were obtained using wheat-rye addition lines as well as test crosses with defined translocations. Moreover, genetical studies based on appropriate trisomic and telotrisomic material resulted in the localization of 19 genes, including their linkage relationships.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266535
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  • 6
    Electronic Resource
    Electronic Resource
    Wheat specific repetitive DNA sequences — construction and characterization of four different genomic clones (1986)
    Springer
    Theoretical and applied genetics 72 (1986), S. 207-210 
    Details
    ISSN: 1432-2242
    Keywords: Repetitive DNA ; Wheat ; Rye ; Relic DNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The construction and molecular analysis of four recombinant clones — pTa1, pTa2, pTa7, and pTa8 — is described. The four clones contain different highly repeated sequences of genomic DNA from Triticum aestivum variety ‘Chinese Spring’. The wheat specificity has been determined by colony and dot blot hybridization in comparison with total rye DNA (Secale cereale variety ‘Petka’). The four clones with a variable degree of specificity were compared by sequence analysis after the recloning of wheat DNA inserts into M13 mp8. Within the sequencing data a tendency can be observed that those repeated sequences which show the highest degree of species specificity contain a significantly increased amount of GC residues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266993
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  • 7
    Electronic Resource
    Electronic Resource
    Identification of seven telotrisomics of rye (Secale cereale L.) (1985)
    Springer
    Euphytica 34 (1985), S. 361-366 
    Details
    ISSN: 1573-5060
    Keywords: Secale cereale rye ; telotrisomics ; identification ; gene location
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Seven monotelotrisomics emerged spontaneously from primary trisomics of rye cv. Esto. Analyses of karyotype, of chromosome pairing in meiosis and of Giemsa banding pattern were used to identify monotelotrisomics in rye as IRS, 1RL, 3RS, 4RS, 4RL, 6RS and 7RL. Vitality and fertility were better than in primary trisomics. The extra telocentrics were well transmitted through the female gamete. Transmission through the male gamete was in all cases less than trasmission through the female gamete.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022929
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  • 8
    Electronic Resource
    Electronic Resource
    Role of rye chromosomes in improvement of zinc efficiency in wheat and triticale (1997)
    Springer
    Plant and soil 196 (1997), S. 249-253 
    Details
    ISSN: 1573-5036
    Keywords: addition lines ; rye ; triticale ; wheat ; zinc deficiency ; zinc genetic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Using the disomic wheat-rye addition lines (Triticum aestivum L., cv. Holdfast-Secale cereale L., cv. King-II) and an octoploid triticale line (xTriticosecale Wittmark L. "PlutoxFakon") as well as the respective wheat and rye parents, greenhouse experiments were carried out to study the role of rye chromosomes on the severity of Zn deficiency symptoms, shoot dry matter production, Zn efficiency, shoot Zn concentration and Zn content. Plants were grown in a Zn-deficient calcareous soil with (10 mg Zn kg-1 soil) and without Zn supply. Zinc efficiency was calculated as the ratio of dry weight produced under Zn deficiency to the dry weight produced under Zn fertilization. In the experiments with addition lines, visual Zn deficiency symptoms were slight in the rye cultivar King-II, but were severe in the wheat cultivar Holdfast. The addition of rye chromosomes, particularly 1R, 2R and 7R, into Holdfast reduced the severity of deficiency symptoms. Holdfast showed higher decreases in shoot dry matter production by Zn deficiency and thus had a low Zn efficiency (53 %), while King-II was less affected by Zn deficiency and had a higher Zn efficiency (89 %). With the exception of the 3R line, all addition lines had higher Zn efficiency than their wheat parent: the 1R line had the highest Zn efficiency (80 %). In the experiment with the triticale cultivar and its parents, rye cv. Pluto and wheat cv. Fakon, Zn deficiency symptoms were absent in Pluto, slight in triticale and very severe in Fakon. Zinc efficiency was 88 % for Pluto, 73 % for triticale and 64% for Fakon. Such differences in Zn efficiency were better related to the total amount of Zn per shoot than to the amount of Zn per unit dry weight of shoot. Only in the rye cultivars, Zn efficiency was closely related with Zn concentration. Triticale was more similar to rye than wheat regarding Zn concentration and Zn accumulation per shoot under both Zn-deficient and Zn-sufficient conditions. The results presented in this study show that rye has an exceptionally high Zn efficiency, and the rye chromosomes, particularly 1R and 7R carry the genes controlling Zn efficiency. To our knowledge, the result with triticale and its rye parents is the first report showing that the genes controlling Zn efficiency in rye are transferable into wheat and can be used for development of new wheat varieties with high Zn efficiency for severely Zn-deficient conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004210309876
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  • 9
    Electronic Resource
    Electronic Resource
    A compendium of reciprocal intervarietal translocations in hexaploid wheat (1989)
    Springer
    Genetic resources and crop evolution 37 (1989), S. 163-176 
    Details
    ISSN: 1573-5109
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Sorten und Linien des hexaploiden Weizens unterscheiden sich sehr häufig durch die Präsenz reziproker chromosomaler Translokationen. Sie können in F1-Hybriden durch die Bildung von multivalenten Chromosomenkonfigurationen identifiziert werden. Unter etwa 270 analysierten Kombinationen wurden Assoziationen von 14, 24, 34, 16, 18, 14+16 und 24+16 mit unterschiedlichen Frequenzen beobachtet. Für verschiedenartige genetische und cytogenetische Experimente ist die Kenntnis über das Vorkommen derartiger Strukturaberrationen erforderlich. Es wurde daher eine Liste verfügbarer Literaturdaten zusammengestellt, die die karyologischen Befunde die Sortenangaben und deren Herkunft sowie die in die Translokation involvierten Chromosomen bzw. Chromosomenarme beinhaltet. Die Ergebnisse werden diskutiert.
    Abstract: Краткое содержание Сорта и линии гексаплоидной пшеницы часто различаются наличием реципрокных транслокаций хромосом. Они идентифицируются образованием мультивалентных хромосомных конфигураций. Среди примерно 270 анализированных комбинаций наблюдались ассоциации 14, 24, 34, 16, 18, 16+14 и 24+16 с различными частотами. Для разнообразных генетических и цитологических ¶rt;кспериментов требуется знание о наличии таких структурных отклонений. Был составлен список имеющихся литературных данных, отражающий кариологическое состояние, сортовые данные, их происхождение, а также транслокации включённых хромосом и соответственно плечи хромосом. Приводятся обсуждения реаультатов.
    Notes: Summary Hexaploid wheat varieties are often differentiated by reciprocal translocations. The chromosomes involved are frequently identified after crossing and F1 analysis. The hybrids show in meiosis multivalent configurations of 14, 24, 34, 16, 18, 14+16, and 24+16 with different frequencies. For several studies the knowledge about interchanges is required. Therefore, a list was compiled summarizing available data from 270 wheat combinations on the presence and number of translocations, on configurations observed and on chromosomes involved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01984613
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  • 10
    Electronic Resource
    Electronic Resource
    Screening for zinc efficiency among wheat relatives and their utilisation for alien gene transfer (1998)
    Springer
    Euphytica 100 (1998), S. 281-286 
    Details
    ISSN: 1573-5060
    Keywords: zinc efficiency ; zinc deficiency ; alien chromosome transfer ; cereals ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Genetic diversity for micronutrient efficiency among the most highly adapted and advanced hexaploid and tetraploid wheat cultivars in the world is limited compared with alien species of wheat or rye. Therefore, screening for zinc efficiency was conducted in greenhouse experiments under controlled conditions, and in field trials. Different varieties of hexaploid wheat, hexaploid oats and diploid rye, together with hexaploid and octoploid triticales, wheat-Agropyron, wheat-Aegilops and several wheat-alien chromosome addition series were studied. Considerable differences in zinc efficiency were found between wheat and its relatives. Individual chromosomes of Secale, Agropyron and Haynaldia were found to carry major genes for this character. The transfer of alien chromosome segments was effective, demonstrated using several wheat-rye translocation lines. Alien genetic information was clearly expressed in the wheat genetic background. Further experimental introgressions by chromosome manipulation and marker-aided selection may efficiently contribute to wheat improvement in marginal soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018376827876
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