Table 2. D chromosome retention in eight hexaploid /tetraploid populations.

Population	Generation	Chromosomes							Total no. of linesa	At least one D-chrb	Ave D-chr/linec
		1D	2D	3D	4D	5D	6D	7D
2–49/Bellaroid	F2	65e+1f	59+3	64+3	64+1	66	62+3	65+1	83	82	5.3
2–49/Bellaroi	F3	53	48+1	48+2	51+1	51+3	50	49	59	54	5.9
2–49/Bellaroi	F7	5	5	5	5	4	5	5	16	5	2.1
2–49/950329	F6	14	14	15	14	11+3	14	14	43	15	2.2
Sunco/Bellaroi	F2	10	19	11	19	15+2	17	19+2	34	30	3.2
Sunco/230604	F2	0	0	0	0	0	0	0	29	0	0.0
CPI133814/Bellaroi	F3	0	0	0	0	0	0	2	38	2	0.1
CPI133814/Bellaroi	F7	0	0	0	0	0	0	0	12	0	0.0

^aTotal number of lines investigated.

^bNumber of lines with at least one D chromosome.

^cAverage number of entire unique D chromosomes per line.

^dData from Eberhard et al. (2010).

^eNumber of lines with entire chromosomes.

^fNumber of lines with partial chromosomes.