Table 1. Distribution of predicted G4 structures (G4s) in wheat genome. Genic regions are composed of 5′ UTR, exon, intron, and 3′ UTR regions of high confidence gene models. G4 density indicates total number of G4 motifs per bp. Chromosomes which possess the highest and lowest G4 densities were highlighted with italic bold letters.

			Whole genome		Genic regions
Chromosome	Chromosome length	Average size of G4 motifs	# of G4 motifs	G4 density (x106)	# of G4 motifs	G4 density (x106)
1A	594,102,056	27.8	45,245	76	1,524	98
1B	689,851,870	27.5	52,963	77	1,617	96
1D	495,453,186	27.9	39,576	80	1,498	96
2A	780,798,557	27.8	58,308	75	1,875	93
2B	801,256,715	27.6	58,814	73	1,837	85
2D	651,852,609	27.9	51,315	79	1,886	94
3A	750,843,639	27.9	56,277	75	1,747	96
3B	830,829,764	27.6	61,460	74	1,863	90
3D	615,552,423	27.9	48,560	79	1,729	93
4A	7445,88,157	27.7	54,977	74	1,593	91
4B	673,617,499	27.6	48,403	72	1,374	94
4D	509,857,067	27.9	38,527	76	1,221	92
5A	709,773,743	27.9	54,601	77	1,751	95
5B	713,149,757	27.7	52,838	74	1,860	93
5D	566,080,677	27.5	47,830	84	1,776	94
6A	618,079,260	27.9	45,641	74	1,371	96
6B	720,988,478	27.6	54,982	76	1,556	92
6D	473,592,718	27.8	38,427	81	1,259	88
7A	736,706,236	28.2	56,095	76	1,729	92
7B	750,620,385	27.8	55,745	74	1,611	91
7D	638,686,055	27.9	51,229	80	1,693	93
Overall	14,066,280,851	27.8	1,071,813	76	34,370	93