From: Targeted generation of polyploids in Hydrangea macrophylla through cross-based breeding
Cross type | Seed bearer | Pollinizer | Number of crosses | Crossing success | Germination rate [%] | Number of F1 plants analyzed by flow cytometry | Description of the F1 population regarding ploidy |
---|---|---|---|---|---|---|---|
selfings (n = 6) | Baby Blue | 1 | not successful | – | – | – | |
Bela | 3 | not successful | – | – | – | ||
Benelux | 1 | not successful | – | – | – | ||
Enziandom | 2 | not successful | – | – | – | ||
Hörnli | 1 | not successful | – | – | – | ||
R.F. Felton | 1 | not successful | – | – | – | ||
diploid x diploid (n = 9) | Dark Angel | Paris | 3 | successful | 76 | 60 | 58 diploids, 2 triploids |
Paris | Dark Angel | 1 | successful | n.d. | 424a | 105 diploids, 317 triploids, 2 aneuploids | |
Dark Angel | Sheila | 4 | successful | 52 | 54 | 54 diploids | |
Sheila | Dark Angel | 4 | successful | 47 | 68 | 34 diploids, 34 triploids | |
Dark Angel | Hörnli | 4 | not successful | – | – | – | |
Hörnli | Dark Angel | 4 | successful | 81 | 60 | 19 diploids, 40 triploids, 1 tetraploid | |
Hörnli | Sheila | 3 | successful | 45 | 60 | 60 diploids | |
Sheila | Hörnli | 5 | successful | 64 | 34 | 2 diploids, 31 triploids, 1 tetraploid | |
Sweet Dreams | Bläuling | 7 | successful | 46 | 70a | 69 diploids, 1 triploid | |
diploid x triploid (n = 7) | Baby Blue | Bela | 1 | difficult | n.d. | 4 | aneuploids between 2x and 3x level |
Baby Blue | Enziandom | 2 | difficult | n.d. | 1 | aneuploid between 2x and 3x level | |
Bodensee | Bela | 4 | successful | 60 | 61 | aneuploids between 2x and 3x level | |
Choco Bleu | Zorro | 4 | successful | 32 | 26 | aneuploids between 2x and 3x level | |
Libelle | Enziandom | 5 | successful | 59 | 76 | aneuploids between 2x and 3x level | |
Little Prince | Enziandom | 4 | successful | 41 | 35 | aneuploids between 2x and 3x level | |
Sweet Dreams | Blaumeise | 1 | successful | 64 | 14a | aneuploids between 2x and 4x level | |
triploid x diploid (n = 9) | Bela | Baby Blue | 1 | not successful | – | – | – |
Bela | Bodensee | 5 | successful | 42 | 63 | aneuploids between 2x and 3x level | |
Blaumeise | Sweet Dreams | 1 | successful | 42 | 24a | aneuploids between 2x and 4x level | |
Enziandom | Baby Blue | 1 | successful | n.d. | 37 | aneuploids between 2x and 3x level | |
Enziandom | Libelle | 3 | successful | 28 | 35 | aneuploids between 2x and 3x level | |
Enziandom | Little Prince | 3 | successful | 44 | 42 | aneuploids between 2x and 3x level | |
Oregon Pride | Choco Bleu | 1 | difficult | n.d. | 3 | aneuploids between 2x and 3x level | |
R.F. Felton | Baby Blue | 2 | successful | 47 | 59 | aneuploids between 2x and 3x level | |
Zorro | Choco Bleu | 5 | successful | 82 | 110 | aneuploids between 2x and 4x level | |
triploid x triploid (n = 8) | Bela | Enziandom | 4 | not successful | – | – | – |
Enziandom | Bela | 3 | difficult | n.d. | 3 | n.d. | |
Bela | R.F. Felton | 1 | not successful | – | – | – | |
R.F. Felton | Bela | 1 | not successful | – | – | – | |
Enziandom | R.F. Felton | 1 | not successful | – | – | – | |
R.F. Felton | Enziandom | 1 | not successful | – | – | – | |
Enziandom | Zorro | 4 | difficult | n.d. | 10 | aneuploids between 2x and 4x level | |
Zorro | Enziandom | 3 | not successful | – | – | – | |
diploid x tetraploid (n = 3) | Baby Blue | Benelux | 1 | not successful | – | – | – |
Bodensee | Benelux | 4 | successful | 46 | 83 | triploids | |
Little Prince | Benelux | 1 | not successful | – | – | – | |
tetraploid x diploid (n = 4) | Benelux | Baby Blue | 1 | not successful | – | – | – |
Benelux | Bodensee | 5 | successful | 54 | 60 | triploids | |
Benelux | Forever Pink | 1 | successful | n.d. | 58 | triploids | |
Benelux | Little Prince | 1 | difficult | n.d. | 1 | triploid | |
triploid x tetraploid (n = 2) | Bela | Benelux | 4 | successful | 34 | 192 | aneuploids between 3x and 4x level |
Enziandom | Benelux | 3 | difficult | n.d. | 4 | aneuploids between 2x and 4x level | |
tetraploid x triploid (n = 2) | Benelux | Bela | 1 | successful | n.d. | 136 | aneuploids between 3x and 4x level |
Benelux | Enziandom | 2 | difficult | n.d. | 1 | aneuploid between 3x and 4x level |