Table 2.

DNA Compaction

DNA	Size (kb)	Untranscribed Length Transcribed Length (μm)	kb/μm	Compaction	Reference
B-DNA	–	–	2.9	1.0	Watson and Crick (1953)
10-nm fiber	–	–	20.3	7.0	Woodcock and Dimitrov (2001)
30-nm fiber	–	–	116–145	40–50	Woodcock and Dimitrov (2001)
Hox1b-Hox9	90	0.1	900	310	Chambeyron and Bickmore (2004)
		0.9	100	34
MHCII	375	1.2	312	107	Müller et al. (2004)
		2.1	178	61
Sad1-Sad2	79	0.42 (cortex)	178	65	This study
		0.97 (epidermis)	81	28
Sad1	15	0.23 (cortex))	65	22	This study
		0.35 (epidermis)	43	15
Pea rDNA (transcribed)	6.6	0.2-0.3	22–33	7.6–11.4	Gonzalez-Melendi et al. (2001)
Chironomus BR2 (transcribed)	37	3.5	10.4	3.6	Daneholt et al. (1982)
Wheat glutenin array (20 copies)	180	2.17	83	29	Wegel et al. (2005)
	13.66	13	4.5