TABLE 3

Comparison of crossover frequency for maize KYS using chiasmata and RNs

No. of cells (bivalents) observedMean no. of RNs or chiasmata (SD) and rangeNo. of bivalents with 0–6 crossoversa
01234–6
RNs15120.6 (3.3)1436374331278
10 plants(1510)13–33(0.9)(24.0)(49.2)(20.7)(5.2)
Chiasmata27818.9 (2.5)3166716734027
5 plants(2780)12–26(1.1)(24.0)(60.2)(14.5)(0.3)
P valuesb<0.0010.560.97<0.001<0.001<0.001
  • a Numbers in parentheses represent percentages.

  • b Student's t-test using mean frequency of bivalent type per cell.