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  1. Article

    Open Access

    Genetic diversity, population structure and phenotypic variation in European Salix viminalis L. (Salicaceae)

    To investigate the potential of association genetics for willow breeding, Salix viminalis germplasm was assembled from UK and Swedish collections (comprising accessions from several European countries) and new sa...

    S. Berlin, S. O. Trybush, J. Fogelqvist, N. Gyllenstrand… in Tree Genetics & Genomes (2014)

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  2. No Access

    Article

    An anchored linkage map for sugar beet based on AFLP, SNP and RAPD markers and QTL map** of a new source of resistance to Beet necrotic yellow vein virus

    Rhizomania, caused by Beet necrotic yellow vein virus (BNYVV), is an important sugar-beet disease worldwide and can result in severe losses of root yield and sugar content. We have identified a major QTL for BNYV...

    M. K. Grimmer, S. Trybush, S. Hanley, S. A. Francis… in Theoretical and Applied Genetics (2007)

  3. No Access

    Article

    Alignment of a Salix linkage map to the Populus genomic sequence reveals macrosynteny between willow and poplar genomes

    Poplars (genus Populus) and willows (genus Salix) are members of the Salicaceae, a family of catkin-bearing trees, shrubs and sub-shrubs. Poplar is considered the model system for biological studies in trees and ...

    S. J. Hanley, M. D. Mallott, A. Karp in Tree Genetics & Genomes (2006)

  4. No Access

    Article

    A genetic linkage map of willow (Salix viminalis) based on AFLP and microsatellite markers

    The genus Salix (willow) contains a number of species of great value as biomass crops. Efforts to breed varieties with improved biomass yields and resistances to pests and diseases are limited by the lack of know...

    S. Hanley, J. Barker, J. Van Ooijen, C. Aldam… in Theoretical and Applied Genetics (2002)

  5. No Access

    Article

    A high degree of genetic diversity is revealed in Isatis spp. (dyer's woad) by amplified fragment length polymorphism (AFLP)

    Genetic diversity in 38 genotypes, representing 28 individual genotypes from five landraces of Isatis tinctoria (three German: Tubingen, Potsdam and Erfurt, one Swiss and one English), five genotypes of Isatis in...

    K. Gilbert (nee Stoker), S. Garton, M. Karam, G. Arnold… in Theoretical and Applied Genetics (2002)

  6. No Access

    Article

    Variation in oil palm (Elaeis guineensis Jacq.) tissue culture-derived regenerants revealed by AFLPs with methylation-sensitive enzymes

    Tissue culture-derived plants of oil palm (Elaeis guineensis Jacq.) can develop abnormal flowers in which stamen primordia are converted into carpel-like tissues (mantled fruit). This abnormality can be heritable...

    M. Matthes, R. Singh, S.-C. Cheah, A. Karp in Theoretical and Applied Genetics (2001)

  7. No Access

    Article

    An analysis of genetic diversity in coconut (Cocos nucifera) populations from across the geographic range using sequence-tagged microsatellites (SSRs) and AFLPs

    Genetic diversity in 31 individuals from 14 coconut populations across the entire geographic range (2–3 individuals per population) was assessed using sequence-tagged microsatellites (or simple sequence repeat...

    B. Teulat, C. Aldam, R. Trehin, P. Lebrun… in Theoretical and Applied Genetics (2000)

  8. No Access

    Article

    A comparative study of the mitochondrial genome organization in in vitro cultures of diploid, tetraploid, and hexaploid Triticum species

    Southern-blot hybridizations of total DNA to mitochondrial DNA (mtDNA) probes were used to investigate the extent of mtDNA variability in cultures derived from immature embryos of diploid (Triticum monococcum, ge...

    C. Hartmann, M. Winfield, F. Corre, M. R. Davey… in Theoretical and Applied Genetics (1996)

  9. No Access

    Article

    Analysis of the mitochondrial DNA of the somatic hybrids of Solanum brevidens and S. tuberosum using non-radioactive digoxigenin-labelled DNA probes

    Mitochondrial (mt) DNAs of somatic hybrids obtained by electrical and chemical fusion of mesophyll protoplasts of S. brevidens and a dihaploid line of S. tuberosum PDH 40 were analysed by Southern hybridization u...

    Y. S. Xu, M. G. K. Jones, A. Karp, E. Pehu in Theoretical and Applied Genetics (1993)

  10. No Access

    Article

    Species-specific sequences in the genus Solanum: identification, characterization, and application to study somatic hybrids of S. brevidens and S. tuberosum

    To aid in the identification and analysis of somatic hybrids between potato (Solanum tuberosum, dihaploid line PDH 40) and the non tuber-bearing wild species S. brevidens, a series of species-specific repetitive ...

    E. Pehu, M. Thomas, T. Poutala, A. Karp, M. G. K. Jones in Theoretical and Applied Genetics (1990)

  11. No Access

    Article

    Molecular, cytogenetic and morphological characterization of somatic hybrids of dihaploid Solanum tuberosum and diploid S. brevidens

    Fifty-eight somatic hybrid plants, produced both by chemical (11) and electrical fusion (47) of protoplasts of dihaploid Solanum tuberosum and S. brevidens, have been analysed by molecular, cytological and morpho...

    E. Pehu, A. Karp, K. Moore, S. Steele, R. Dunckley… in Theoretical and Applied Genetics (1989)

  12. No Access

    Article

    Variability in potato tissue culture

    Tissue culture systems in potato (Solanum tuberosum L.) that involve a callus phase, such as regeneration of plants from protoplasts or expiants, can be accompanied by phenotypic variability, or somaclonal variat...

    A. Karp, M. G. K. Jones, D. Foulger, N. Fish, S. W. J. Bright in American Potato Journal (1989)

  13. No Access

    Article

    Production of somatic hybrids by electrofusion in Solanum

    Conditions are described for large scale electrofusion of mesophyll protoplasts of dihaploid S. tuberosum with those of diploid S. brevidens. Overall fusion frequencies of 20%–30% were achieved, and following fus...

    N. Fish, A. Karp, M. G. K. Jones in Theoretical and Applied Genetics (1988)

  14. No Access

    Article

    Plant regeneration and somaclonal variation from cultured immature embryos of sister lines of rye and triticale differing in their content of heterochromatin

    Plants were regenerated from cultured immature embryos of two pairs of sister lines of triticale (X Triticosecale) cvs Rosner and Drira and five sister lines of rye (Secale cereale). The triticale lines differ in...

    P. Bebeli, A. Karp, P. J. Kaltsikes in Theoretical and Applied Genetics (1988)

  15. No Access

    Article

    Genetic transformation in two potato cultivars with T-DNA from disarmed Agrobacterium

    Derivatives of potato (Solanum tuberosum cv.'s ‘Maris Bard’ and ‘Desiree’) transformed with disarmed T-DNA from genetically engineered Agrobacterium tumefaciens strains were isolated. The transformed plants were ...

    G. Ooms, M. M. Burrell, A. Karp, M. Bevan, J. Hille in Theoretical and Applied Genetics (1987)

  16. No Access

    Article

    Improved isolation of dihaploidsolanum tubersoum protoplasts and the production of somatic hybrids between dihaploidS. tuberosum andS. brevidens

    A modified protoplast isolation technique, applicable to a range of dihaploidSolanum tuberosum genotypes, has been developed. A combination of high calcium and high pH was used to fuse mesophyl protoplasts of dih...

    N. Fish, A. Karp, M. G. K. Jones in In Vitro Cellular & Developmental Biology (1987)

  17. No Access

    Article

    Chromosome variation in dividing protoplasts and cell suspensions of wheat

    The cytology of bread wheat (Triticum aestivum) suspension lines, recycled lines (selected for high division frequency) and their dividing protoplasts, have been examined. Extensive numerical and structural chrom...

    A. Karp, Q. S. Wu, S. H. Steele, M. G. K. Jones in Theoretical and Applied Genetics (1987)

  18. No Access

    Article

    Heritable somaclonal variation in wild barley (Hordeum spontaneum)

    Progenies of H. spontaneum plants regenerated from immature embryo derived calli were analysed for somaclonal variation on the following traits: (1) organization of the intergenic spacer of the rRNA genes; (2) B ...

    A. Breiman, D. Rotem-Abarbanell, A. Karp, H. Shaskin in Theoretical and Applied Genetics (1987)

  19. No Access

    Article

    Improvements in regeneration from protoplasts of potato and studies on chromosome stability

    Regeneration of plants from protoplasts of potato (Solanum tuberosum) cv. ‘Maris Bard’ has been achieved from four different initial culture media (ET2, ET3, CLG, VkCLG). These media differed in their hormone, sa...

    N. Fish, A. Karp in Theoretical and Applied Genetics (1986)

  20. No Access

    Article

    Genetic manipulation in cultivars of oilseed rape (Brassica napus) using Agrobacterium

    The response of oilseed rape cultivars to infection with Agrobacterium tumefaciens and A. rhizogenes and the possibility of regenerating genetically transformed oilseed rape plants were examined. The frequency at...

    G. Ooms, A. Bains, M. Burrell, A. Karp, D. Twell… in Theoretical and Applied Genetics (1985)

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