Arabidopsis aneuploidy mutant C30-81-as6, possesses enormous variations in multiple phenotypic characteristics

The mutant shows abnormal leaf shapes, petioless rosette leaves, elevated trichome bases and later flowering phenotypes. A set of candidate causal genes were identified using up and downregulated differentially expressed genes (DEGs) in transcriptome analysis.

Gene ontology analysis further supports mutant phenotypic characteristics and provides insights into its functional priorities including promotion of cellular structure and energy production. Meanwhile, the downregulation of senescence-related GO terms validates its extended vegetative phase. The gene density mapping of upregulated DEGs, densely positioned on the long arm of chromosome 2 and phenotype of C30-81-as6 largely resembles Arabidopsis additional chromosome 2 containing aneuploidy mutant.