ISHS Acta Horticulturae 743: XXII International Eucarpia Symposium, Section Ornamentals, Breeding for Beauty - Part II
INTERPLOID CROSSES IN ANEMONE CORONARIA |
| Authors: | Y. Jacob, S. Mastrantuono, F. Ferrero |
| Keywords: | Anemone coronaria L., triploid, tetraploid, cut flower |
| Abstract:
On Anemone coronaria L., the triploid level, obtained by crossing 4x X 2x, combines the majority of the advantages of diploid and tetraploid but its commercial exploitation is delicate because the weak rate of triploid seed germination. In spite of that, the male fertility of these hybrids appears to be relatively high (30 to 70% of viable pollen). The crosses involving these 3x plants (used as pollen donor) gave progenies with variable ploidy level according to ploidy of the other relative progenitor used. This work reports the range of ploidy level obtained from various interploid combinations and illustrates an example of application of interploid crosses for flower colour modification. In conclusion, triploid plants, used in crosses, play a central role in the breeding process of anemone by their ability to easily create a new genetic variability in an autopolyploid context. | |
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