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  • Multiple target in situ hybridizations combining GISH using H. marinum subsp. gussoneanum DNA as a probe (gusDNA)

    Allopolyploidy origins and genome structure of barley relatives

    Unravelling relationships within Hordeum, one of the largest genera of the tribe Triticeae (Hordeae), is difficult, as many taxa, including most of the polyploids, are of hybrid origin. Mapping phylogenetic relationships, Cuadrado et al. investigate origins and interspecific affinities of the allotetraploids Hordeum secalinum and H. capense using molecular karyotyping. Genomic in situ hybridization distinguishes […] More

  • Molecular cytogenetics of repetitive DNA in jute species

    Molecular cytogenetics of repetitive DNA in jute species

    The genomes and chromosomes of the important fibre crops white jute and Tossa jute (Corchorus species) are poorly characterized. Information is essential for breeding and improvement, with characters including environmental adaptability, fibre quality and susceptibility to diseases differing between the species. Begum et al. use a comparative analysis of a prominent satelllite DNA family, identified in […] More

  • Brassica monosomic alien addition lines

    Brassica monosomic alien addition lines

    Addition of each chromosome of Brassica oleracea to the chromosome complement of B. rapa results in a series of nine monosomic alien addition lines. Heneen et al. report the development and use of such a series for mapping genes, determining chromosome homoeology, and for assigning genetic linkage groups to specific chromosomes. Seven B. oleracea chromosomes carry […] More

  • Satellite DNA family in Medicago and allied genera

    Satellite DNA family in Medicago and allied genera

    Satellite DNA is a genomic component present in virtually all eukaryotic organisms and is an important element in genome organization and evolution in plants. Rosato el al. assess the presence and physical distribution of the repetitive DNA E180 family in 70 accessions from Medicago and allied genera. The results suggest that recurrent and independent evolutionary episodes […] More