Table 1.
Number of HD-Zip genes observed (O), expected (E) and retained (R) among five angiosperm species
| HD-Zip I (5)a | HD-Zip II (4)a | HD-Zip III (4)a | HD-Zip IV (4)a | Total - each species | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Species | O | E | R (%) | O | E | R (%) | O | E | R (%) | O | E | R (%) | O | E | R (%) |
| Arabidopsis thaliana (12)b | 17 | 60 | 28.3 | 9 | 48 | 18.8 | 5 | 48 | 10.4 | 16 | 48 | 33.3 | 47 | 204 | 23.0 |
| Vitis vinifera (3)b | 14 | 15 | 93.3 | 7 | 12 | 58.3 | 4 | 12 | 33.3 | 8 | 12 | 66.7 | 33 | 51 | 64.7 |
| Glycine max (12)b | 36 | 60 | 60.0 | 24 | 48 | 50.0 | 11 | 48 | 22.9 | 30 | 48 | 62.5 | 101 | 204 | 49.5 |
| Medicago truncatula (6)b | 15 | 30 | 50.0 | 7 | 24 | 29.2 | 6 | 24 | 25.0 | 13 | 24 | 54.2 | 41 | 102 | 40.2 |
| Oryza sativa (4)b | 14 | 20 | 70.0 | 12 | 16 | 75.0 | 4 | 16 | 25.0 | 11 | 16 | 68.8 | 41 | 68 | 60.3 |
| Total - Among five species | 96 | 185 | 51.9 | 59 | 148 | 39.9 | 30 | 148 | 20.3 | 78 | 148 | 52.7 | 263 | 629 | 41.8 |
aNumber of ancient angiosperm clades observed in each HD-Zip subfamily.
bNumber of genes expected in each ancient angiosperm clade based on the history of whole genome duplication events.