Table 2. Chi-square values for the different mitotic aberrations found in the leaves and calli

Type of aberration

X 2 exp

Conclusion (p<0.05)

D-E-F-G-H-I *1

23.47

The distribution of abnormalities is different in the leaves than in the calli *2

Abnormal cells in the leaves vs. Abnormal cells in the calli

0.54

The total number of mitotic abnormalities in the leaves is proportionally equal to those showed by the calli. *3

Cells with lower chromosome numbers

0.094

The number of mitotic cells with chromosome numbers lower than 2n=44 is proportionally equal between the leaves and the calli *3

Cells with

double prophases

2.33

The number of mitotic cells with double prophases is proportionally equal between the leaves and the calli *3

Cells with

double metaphases

0.014

The number of mitotic cells with double metaphases is proportionally equal between the leaves and the calli *3

Cells with

sticky chromosomes

4.55

The number of mitotic cells with sticky chromosomes has an statistically significant difference between the leaves and the calli (12.8 % leaves, 30.4 % calli) *3

Binucleated cells

44.9

The number of binucleated cells has an statistically significant difference between the leaves and the calli (39 % leaves, 8.9 % calli) *3

Cells with Chromosome bridges

3.28

The number of mitotic cells with chromosome bridges is proportionally equal between the leaves and the calli *3


*1 These letters correspond to those used in the Table 1

*2 Critical value of chi-square for 5 df is 11.1

*3 Critical value of chi-square for 1 df is 3.84


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