关键词: 桃, 杂色, 表型, 遗传, SSR

Abstract: A peach‘PCM-1’，with variegated color was obtained in breeding practice of ornamental
peach. The variegated color was pink and white on flower，purple and green on leaf，purple strips or dots
on green stem，and irregular red spots or dots on young fruits with green background. In this study，
morphology，transmission among grafted clones and inheritance of the variegated color were investigated.
By using SSR，parent of‘PCM-1’and difference among grafted clones were identified. Variegated color
was stable during 6 years of observation on‘PCM-1’. Colorful cells were only observed in the first layer
on the epidemic of petal，leaf and stem. By grafting，most clones（97.4%）carried variegated color
predicting the trait could be transmitted by grafting，but a few clones（2.6%）with pure color were also isolated. The variegated color on flower，leaf，stem and fruit appeared simultaneously on the same plant.
By crossing‘PCM-1’with white flowered and green leafed peaches，12.2%–24.7% of individuals with
variegated color were observed.‘Hongfen Jiaren’，a released ornamental peach，was identified to be the
female parent of ‘PCM-1’. By screening 324 SSRs，no different alleles were observed among three clones，
‘PCM-1’，‘PCM-1R’and‘PCM-1G’，although their leaf color are variegated，pure purple and green，
respectively.

Key words: peach, variegated color, characteristic, inheritance, SSR