Table 8.

Characterization of the Sexual and Apomictic Parents Used for the First Cycle of Crosses and of the F₁ Plants Used for the Second Cycle

Number	Origin	Mode of Reproductiona	Chromosome Number (2n)	Polyembryos (%)	ATb
S1	Clone out of cv Berbi, Germany	Obligate sexual	30	0.0	−
S2	Clone out of cv Berbi, Germany	Obligate sexual	30	0.0	−
S3	Clone cv Roznovska, Czech Republic	Obligate sexual	60	0.0	−
S4	Clone cv Roznovska, Czech Republic	Obligate sexual	30	0.0	−
S5	Clone cv Prato, The Netherlands	Obligate sexual	49	0.3	−
SJ	Population cv Jori, Germany	Obligate sexual	∼30	0.0	−
SL	Population cv Lato, Germany	Obligate sexual	∼32	0.0	−
A15	cv Beata, Poland	Facultative apomictic	42–90	0.5	+
A17	cv Erte, Denmark	Facultative apomictic	∼54	4.2	+
A21	cv Union, Germany	Facultative apomictic	∼62	1.6	+
A23	cv Ligrotta, Germany	Facultative apomictic	∼66	6.1	+
A24	cv Limousine, Germany	Facultative apomictic	∼50	3.0	+
A25	cv Ottos, Germany	Facultative apomictic	∼62	3.2	+
A31	cv Blacksburg, USA	Facultative apomictic	∼51	12.8	+
A32	cv Monopoly, The Netherlands	Facultative apomictic	∼52	3.4	+
F11	F1 from 1(S1 × A15)	Obligate sexual	∼60	0.0	−
F12	F1 from 6(S3 × F11)	Low aposporous	∼56	0.0
F13	F1 from 2(S1 × A17)	Intermediate apospor	∼40	1.0
F14	F1 from 2(F12 × F13)	Obligate sexual	∼47	0.0
F15	F1 from 2(F12 × F13)	Low apomictic	∼52	12.0
F16	F1 from 2(F12 × F13)	Obligate sexual	∼47	0.0
F17	F1 from 4(F14 × F15)	Low apomictic	∼56	14.3

^aFacultative apomictic: intermediate to high expressivity of apospory and parthenogenesis.

^bAT, auxin test; + and − with or without parthenogenesis capacity.