牡丹的染色体倍数较低且数目较少，是进行多倍体育种的好材料，对其进行多倍体育种是改进其观赏品质、提高其经济价值的有效途径之一。
Peony are good material for polyploid breeding with lower chromosome multiple and less number. polyploid breeding can improve Peony's watches quality and economic value.
例如，一种生物单倍体染色体数目是7，整倍数将是7、14、21、28等数目，并且每条不同的染色体有相等的数目。
For example, if the haploid number is 7, the euploid number would be 7, 14, 21, 28, etc, and there would be equal Numbers of each different chromosome.
1987年和1988年以染色体倍数不同的-15个小麦种为材料，研究不同染色体组成对诱导愈伤组织和分化绿苗的效应。
This study dealt with the effects of chromosome complement on callus induction and differentiation in 15 Triticum species of different Ploidy in 1987-1988.
偶线期时，以同源染色体活跃的、特定的配对(联会)为特征，形成了单倍数的二价染色体。
Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.
偶线期时，以同源染色体活跃的、特定的配对(联会)为特征，形成了单倍数的二价染色体。
Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.
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