Table 1 Cytogenetic karyotyping analysis of clones derived of the JM8 parental line

≥50 % euploidy

569 (80.5 %)

<50 % euploidy^a

138 (19.5 %)

ES clones with Chr 1 aneuploidy^b

11 (1.6 %)

ES clones with Chr 8 aneuploidy^b

119 (16.8 %)

ES clones with Chr 11 aneuploidy^b

38 (5.4 %)

ES clones with Chr Y aneuploidy^b

36 (5.1 %)

ES clones with at least four aneuploid chromosomes including 1, 8, 11 and Y

2 (0.3 %)

ES clones with three aneuploid chromosomes (at least two of these were among 1, 8, 11 and Y)

10 (1.4 %)

ES clones with two aneuploid chromosomes (at least one of these were among 1, 8, 11 and Y)

45 (6.4 %)

ES clones with one aneuploid chromosome among 1, 8, 11 and Y

81 (11.4 %)

ES clone with aneuploid chromosomes other than 1, 8, 11 or Y

1 (0.1 %)

ES clones with only aneuploid Chr 1 only

3 (0.4 %)

ES clones with only aneuploid Chr 8 only

64 (9.0 %)

ES clones with only aneuploid Chr 11 only

6 (0.8 %)

ES clones with only aneuploid Chr Y only

2 (0.3 %)