MENDELIAN BOMBSHELL. “Genome-wide non-Mendelian inheritance of extra-genomic information in Arabidopsis. Here we show that Arabidopsis plants homozygous for recessive mutant alleles of the organ fusion gene HOTHEAD 5 (HTH) can inherit allele-specific DNA sequence information that was not present in the chromosomal genome of their parents but was present in previous generations.”
http://www.nature.com/nature/journal/v434/n7032/abs/nature03380.html