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Article
Screening diversity and distribution of Copia retrotransposons reveals a specific amplification of BARE1 elements in genomes of the polyploid Hordeum murinum complex
We explored diversity, distribution and evolutionary dynamics of Ty1-Copia retrotransposons in the genomes of the Hordeum murinum polyploid complex and related taxa. Phylogenetic and fluorescent in situ hybridiza...
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Protocol
Multicolored Fluorescent In Situ Hybridization to Assess Pairing Configurations at Metaphase I in Brassica Hybrids
Genetic diversity can be introduced into polyploid crop species through meiotic recombination by exchanges between homologous or homoeologous chromosomes. Fluorescent in situ hybridization (FISH) enables the c...
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Article
Development of 1AS.1AL-1DL durum wheat chromosome carrying Glu-D1a locus encoding high molecular weight glutenin subunits 2 + 12
High molecular weight glutenin subunits (HMW-GS) are well-known to directly influence the bread wheat quality. In a previous paper, our group reported the replacement of the locus Glu-A1 by the locus Glu-D1—allel...
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Article
Agronomic evaluation of AABB wheat tetraploids extracted from wheat neo-allohexaploids
In order to understand if the mechanisms leading to stabilization of hexaploid wheats occurred in early generations after hybridization or accumulated slowly over the evolutionary course, we extracted tetraplo...
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Article
Molecular cytogenetic identification of B genome chromosomes linked to blackleg disease resistance in Brassica napus × B. carinata interspecific hybrids
Provide evidence that the Brassica B genome chromosome B3 carries blackleg resistance gene, and also the B genome chromosomes were inherited several generati...
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Article
Immediate unidirectional epigenetic reprogramming of NORs occurs independently of rDNA rearrangements in synthetic and natural forms of a polyploid species Brassica napus
The dynamics of genome modification that occurred from the initial hybridization event to the stabilization of allopolyploid species remains largely unexplored. Here, we studied inheritance and expression of r...
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Article
New data and phylogenetic placement of the enigmatic Old World lupin: Lupinus mariae-josephi H. Pascual
Lupinus mariae-josephi H. Pascual is an intriguing lupin species recently discovered in the Mediterranean region. New data from seed coat micromorphology, cytology, and DNA sequences were generated in order to ex...
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Article
Genome structure affects the rate of autosyndesis and allosyndesis in AABC, BBAC and CCAB Brassica interspecific hybrids
Gene introgression into allopolyploid crop species from diploid or polyploid ancestors can be accomplished through homologous or homoeologous chromosome pairing during meiosis. We produced trigenomic Brassica int...
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Article
Homoeologous recombination within bread wheat to develop novel combinations of HMW-GS genes: transfer of the Glu-A1 locus to chromosome 1D
In an attempt to improve the bread-making quality within hexaploid wheat by elaborating novel high-molecular weight glutenin subunits (HMW-GS) combinations useful in wheat-breeding programmes, a 1A chromosome ...