Fig. 7
From: The non-random patterns of genetic variation induced by asymmetric somatic hybridization in wheat
The model of genetic variation induced by asymmetric somatic hybridization. a: Untranslated regions (UTR, non-coding sequences) have stronger genetic variation than coding sequences, and the genetic variation distributes unevenly in genes with higher frequency in indel-flanking sequences. b: The introgression of exogenous fragments induces genome-wide genetic variation by whole genomic shock and local chromosomal shock. c: The introgression of exogenous fragments induces comparable extent of genetic variation among seven allelic chromosomes but different extent among three genome sets. ▲: insertion and deletion. ●: nucleotide substitution. Red block: introgressed exogenous fragments. Blue block: whole genomic shock. Orange block: local chromosomal shock. Red curved arrows: the induction of genetic variation by the whole genomic shock, and the thickness of arrows indicates the strength of genetic variation. Blue curved arrow: the promotion of indels to nucleotide substitution at 5′-flanking sequence. Purple curved arrow: the effect of local chromosomal shock on the promotion of indels to nucleotide substitution at 5′-flanking sequence. Orange and green curved arrows: the induction of indels (orange) and nucleotide substitutions (green) by the whole genomic shock and local chromosomal shock, and the thickness of arrows indicates the strength of genetic variation. The number of dots indicates the frequency of nucleotide substitution, and the distance between dots indicated the distribution of nucleotide substitution