. 2005 Feb;169(2):843–848. doi: 10.1534/genetics.104.032755

TABLE 1.

The numbers of balanced progeny produced from the eight combinations of mouse crosses including parental and grandparental origin of the Robertsonian (Rb) chromosomes

		No. of embryos^a
Maternal Rb grandparent^b	Paternal Rb grandparent^c	Total no.	MM	MP	PM	PP	No Rb chr.
B^d	W
MGM	PGF	88	40	0	0	45	28
MGM	PGM	74	36	0	43	0	16
MGF	PGF	143	0	73	0	83	26
MGF	PGM	113	0	46	57	0	26
W	B
MGF	PGM	150	0	68	71	0	40
MGF	PGF	111	0	54	0	68	30
MGM	PGM	126	57	0	77	0	32
MGM	PGF	49	19	0	0	18	15
Total		854

Rb, Robertsonian chromosome.

^{^a}

MM indicates inheritance of the Rb chromosome from the mother and grandmother; MP, from the mother and her father; PM, from the father and his mother; and PP, from the father and his father. No Rb chromosome indicates inheritance only of acrocentric chromosomes.

^{^b}

MGM, maternal grandmother; MGF, maternal grandfather.

^{^c}

PGF, paternal grandfather; PGM, paternal grandmother.

^{^d}

C57BL/6JEi-Rb(7.18)9Lub; W, Rb(2.8)2Lub(7.18)9Lub.