Table 2.

Karyotyping and nomenclature of the mitotic chromosomes in S. spontaneum SES208.

Saccharum spontaneum chromosome	FISH probes	Long arm (μm)	Short arm (μm)	rDNA locations		Arm ratioa	Total length (μm)	Relative lengthb (%)	n
				45S	5S
1	Sb2, Sb8	2.36 ± 0.36	1.95 ± 0.26			1.21 ± 0.15	4.30 ± 0.57	14.50 ± 0.02	80
2	Sb5, Sb7	2.45 ± 0.51	1.62 ± 0.25			1.53 ± 0.32	4.06 ± 0.65	13.67 ± 0.02	80
3	Sb1	2.14 ± 0.32	1.88 ± 0.32			1.14 ± 0.12	4.02 ± 0.61	13.51 ± 0.02	80
4	Sb3	2.11 ± 0.31	1.77 ± 0.22			1.20 ± 0.14	3.88 ± 0.48	13.06 ± 0.02	80
5	Sb6, Sb5.1	2.19 ± 0.35	1.58 ± 0.33	Long arm		1.45 ± 0.38	3.77 ± 0.52	12.69 ± 0.02	80
6	Sb9, Sb8.1	2.23 ± 0.35	1.43 ± 0.23		Long arm	1.60 ± 0.28	3.65 ± 0.51	12.28 ± 0.02	80
7	Sb4	1.90 ± 0.29	1.61 ± 0.30			1.20 ± 0.20	3.52 ± 0.54	11.83 ± 0.02	80
8	Sb10	1.37 ± 0.20	1.15 ± 0.19			1.20 ± 0.17	2.52 ± 0.35	8.48 ± 0.01	80

^aArm ratio, length of the long arm/length of the short arm. ^bRelative length, chromosome length/genome length.