ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2019
Hybrids between Brassica napus and B. nigra show frequent pairing between the B and A/C genomes and resistance to blackleg.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 40 citations in OpenAlex.
- Segregating BCMolecular breeding : new strategies in plant improvement · 2026Article
- Hybridization between different Brassica allohexaploid lineages produces viable, fertile progeny but does not improve genome stability or fertility in F1 hybrids.Annals of botany · 2026Article
- Substantial non-homologous recombination and structural variation results from Brassica AABC and CCAB hybrid meiosis.The Plant journal : for cell and molecular biology · 2025Article
- Development and characterization of a complete set of monosomic alien addition lines from Raphanus sativus in Brassica oleracea.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Application of an Anchor Mapping of Alien Chromosome (AMAC) Fragment Localization Method in the Identification of Radish Chromosome Segments in the Progeny of Rape-Radish Interspecific Hybrids.International journal of molecular sciences · 2024Article
- Unambiguous chromosome identification reveals the factors impacting irregular chromosome behaviors in allotriploid AAC Brassica.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Breeding and management of major resistance genes to stem canker/blackleg in Brassica crops.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Review
- Embryo Rescue in Plant Breeding.Plants (Basel, Switzerland) · 2023Review
- Genome composition in Brassica interspecific hybrids affects chromosome inheritance and viability of progeny.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
- Overcoming genetic paucity ofFrontiers in plant science · 2023Review
- Perspectives for integrated insect pest protection in oilseed rape breeding.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Review
- Rapid Creation of Interspecific Hybrid Progeny to Broaden Genetic Distance through Double Haploid (DH) Inducer inPlants (Basel, Switzerland) · 2022Article
- Novel Brassica hybrids with different resistance toOpen life sciences · 2022Article
- Integrated cytological and transcriptomic analysis reveals insights into pollen fertility in newly syntheticFrontiers in plant science · 2022Article
- Challenges and prospects for a potential allohexaploid Brassica crop.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Review
- Current Status of the Disease-Resistant Gene(s)/QTLs, and Strategies for Improvement inFrontiers in plant science · 2021Review
- Recent Findings Unravel Genes and Genetic Factors UnderlyingInternational journal of molecular sciences · 2020Review
- A highly contiguous genome assembly of Brassica nigra (BB) and revised nomenclature for the pseudochromosomes.BMC genomics · 2020Article
- Genome-Wide Duplication of AllotetraploidG3 (Bethesda, Md.) · 2020Article
- Genome-Wide Association Mapping Identifies Novel Loci for Quantitative Resistance to Blackleg Disease in Canola.Frontiers in plant science · 2020Article
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4 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
High frequencies of homoeologous and even non-homologous chromosome recombination in Brassica hybrids can transfer useful traits between genomes, but also destabilise synthetic allopolyploids. We produced triploid hybrids (2n = 3x = ABC) from the cross B. napus (rapeseed, 2n = 4x = AACC) × B. nigra (black mustard, 2n = 2x = BB) by embryo rescue and allohexaploid hybrids (2n = 6x = AABBCC = 54) by chromosome doubling of the triploids. These hybrids demonstrated resistance to blackleg disease (causal agent: Leptosphaeria maculans) inherited from their B. nigra parent. In order to assess the possibility of transfer of this resistance between the B genome and the A and C subgenomes of B. napus, as well as to assess the genomic stability of allohexaploids from the cross B. napus × B. nigra, frequencies of non-homologous chromosome pairing in these hybrids were assessed using classical cytogenetics and genomic in-situ hybridization. Meiosis was highly irregular, and non-homologous chromosome pairing between the B genome and the A/C genomes was common in both triploid hybrids (observed in 38% of pollen mother cells) and allohexaploid hybrids (observed in 15% of pollen mother cells). Our results suggest that introgression of blackleg resistance from the B genome into the A or C genomes should be possible, but that allohexaploids from this genome combination are likely unstable.
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