Crossing of Allotriploid LLO Hybrid and Asiatic Lilies (Lilium)

摘要

Triploid LLO hybrids were crossed with Asiatic hybrids. The triploid was derived by crossing somatic chromosome doubled LO hybrid (Longiflorum x" Oriental) backcrossed with L. Genomic in situ hybridization showed that the LLO hybrid had 24 L chromosomes and 12 0 chromosomes with no recombination. Crossing of the allotriploid LLO as the ovary parent with diploid Asiatic hybrid (A) produced some progenies, which were aneuploid, near-diploid, or -triploid containing L, O, and A chromosomes. Numbers of Land A chromosomes were stable (12 chromosomes) with one exception, which had 14A chromosomes. The number of O chromosomes varied from 3 to 10. One progeny (LLO x A) exhibited a chromosome recombination of L and O, indicating that recombination can occurin meiosis of an allotriploid (LLO) ovule.