ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2016
Distinct subgenome stabilities in synthesized Brassica allohexaploids.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 56 citations in OpenAlex.
- Chromosomal collinearity drives meiotic instability in Brassica autoallopolyploid.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 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
- Dissection of B subgenome of Brassica juncea through monosomic addition lines in Brassica napus: phenomic, cytological and genotypic insights.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Development of Brassica rapa-nigra monosomic alien addition lines: cytology, genetics, and morphology.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Article
- Chromosome-Level Assembly Reveals a Fifteen-Chromosome Aneuploid Genome and Environmental Adaptation Strategy of Chinese Traditional Medical FungusInternational journal of molecular sciences · 2024Article
- Characteristics and Cytological Analysis of Several Novel Allopolyploids and Aneuploids betweenInternational journal of molecular sciences · 2024Article
- Transcriptional Interactions of Single B-Subgenome Chromosome with C-Subgenome inPlants (Basel, Switzerland) · 2023Article
- Identification, Characterization, and Cytological Analysis of Several Unexpected Hybrids Derived from Reciprocal Crosses between Raphanobrassica and Its Diploid Parents.Plants (Basel, Switzerland) · 2023Article
- Allele segregation analysis of FChromosoma · 2022Article
- Production and cytology of Brassica autoallohexaploids with two and four copies of two subgenomes.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Transcriptome Profiling Identifies Candidate Genes Contributing to Male and Female Gamete Development in SyntheticPlants (Basel, Switzerland) · 2022Article
- Integrated cytological and transcriptomic analysis reveals insights into pollen fertility in newly syntheticFrontiers in plant science · 2022Article
- Modelling of gene loss propensity in the pangenomes of three Brassica species suggests different mechanisms between polyploids and diploids.Plant biotechnology journal · 2021Article
- Genetic characteristics and ploidy trigger the high inducibility of double haploid (DH) inducer in Brassica napus.BMC plant biology · 2021Article
- Review
- Challenges and prospects for a potential allohexaploid Brassica crop.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Review
- DNA repair- and nucleotide metabolism-related genes exhibit differential CHG methylation patterns in natural and synthetic polyploids (Brassica napus L.).Horticulture research · 2021Article
- Genomics Armed With Diversity Leads the Way inFrontiers in genetics · 2021Review
- Investigating genetic relationship ofMolecular breeding : new strategies in plant improvement · 2021Article
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Authors and funding
5 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
key messageTrigenomic Brassica allohexaploids synthesized from three crossing strategies showed diploidized and non-diploidized meiotic behaviors and produced both euploid and aneuploid progenies during successive generations, revealing the distinct subgenome stabilities (B > A> C). Three cultivated allotetraploid Brassica species (Brassica napus, B. juncea, B. carinata) represent the model system of speciation through interspecific hybridization and allopolyploidization, but no Brassica species at higher ploidy level exists in nature. In this study, Brassica allohexaploids (2n = 54, AABBCC) were artificially synthesized using three crossing strategies, and had combinations of the genomes from the extant allotetraploids and diploids (B. rapa, B. oleracea and B. nigra). The chromosome numbers and complements of these allohexaploids and the self-pollinated progenies of successive generations (S0-S7) were determined using multicolor fluorescent in situ hybridization that distinguished the chromosomes of three constituent genomes from each other. Both euploid and aneuploid progenies were identified. The most aneuploids maintained all B- and A-genome chromosomes and variable number of C-genome chromosomes, suggesting that genome stability was B > A > C. In the extreme case, loss of whole set of C-genome chromosomes led to the production of B. juncea-type progeny. Some aneuploid progenies had the same number of chromosomes (2n = 54) as the euploid, but the simultaneous loss and gain of A- and C-genome chromosomes. The diploidized and non-diploidized meiotic behaviors co-occurred in all allohexaploid individuals of consecutive generations. The aberrant chromosome pairing and segregation mainly involved the chromosomes of A and C genomes, which resulted in aneuploidy in self-pollinated progenies. The mechanisms for the differential stability of three genomes and the stabilization of the new allohexaploids are discussed.
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