Table 4.
The lengths of the primary, secondary, and tertiary SBs in the comparison of 16 Juglans regia (Jr) chromosomes (total physical map length = 736070 Mb) with the pseudomolecules of Vitis vinifera (Vv), Populus trichocarpa (Pt), Malus domestica (Md), Medicago truncatula (Mt), Cucumis sativus (Cs), and Fragaria vesca (Fv)
| Measure | Jr-Vv | Jr-Pt | Jr-Md | Jr-Mt | Jr-Cs | Jr-Fv |
|---|---|---|---|---|---|---|
| Chromosome number | 19 | 19 | 17 | 8 | 7 | 7 |
| Total length of the primary SBs (Mb) | 600.144aa | 556.891a | 535.223a | 349.414c | 459.251b | 298.298c |
| Percent of the Jr physical map | 82 | 76 | 73 | 49 | 62 | 41 |
| Total length of the secondary SBs (Mb) | 106.351ba | 379.983a | 267.060a | 133.824b | 178.461b | 2.871d |
| Percent of the Jr physical map | 14 | 52 | 36 | 19 | 22 | 1 |
| Length of the tertiary SBs (Mb) | 6.920b | 62.581 | 6.692 | 4.715 | 14.436 | 0 |
| Percent of the Jr physical map | 1 | 9 | 1 | 1 | 2 | 0 |
| Ratio of secondary SBs to primary SBs | 0.17 | 0.68 | 0.50 | 0.39 | 0.39 | 0.01 |
aMeans in rows followed by the same letter were not significantly different at the 5 % probability level. bStatistical significance of differences between means was not tested because of large numbers of zeroes