Detection of Different Patterns of Genome-Wide Gene Expression Disturbance in Three Nullisomy Lines in Allotetraploid Brassica napus

Plants, Journal Year: 2025, Volume and Issue: 14(10), P. 1434 - 1434

Published: May 10, 2025

Aneuploidy-related disruptions are generally tolerated in polyploid plants, which exhibit a greater capacity for genomic compensation. In this study, we utilize allotetraploid Brassica napus as model and generated three aneuploid variants (NC1, NC2, NC8) to investigate the phenotypic transcriptional consequences of chromosome loss. Significant variations were observed, with most notable being marked dwarfing phenotype materials compared euploid Oro. Transcriptomic analysis revealed widespread alterations gene expression across entire genome deficient variants. Notably, differentially expressed genes (DEGs) attributed trans-acting effects resulting from deletion C chromosomes. Deletion chromosomes induced changes not only on corresponding chromosomes, but also affected other Specifically, C1-deleted variant, average A1 increased, while number decreased. contrast, C2 C8 deletions, levels homologous decreased, increased. These findings shed light complex compensatory mechanisms that underlie aneuploidy plants provide valuable insights into how maintain stability despite chromosomal

Language: Английский

Development of Brassica rapa-nigra monosomic alien addition lines: cytology, genetics, and morphology

Theoretical and Applied Genetics, Journal Year: 2025, Volume and Issue: 138(6)

Published: May 14, 2025

Language: Английский