在有丝分裂的晚前期、早中期和中期的染色体都有这样的带纹，同一品种的带纹数目从有丝分裂晚前期到中期逐渐减少。
The G-bands at late prophase, prometaphase and metaphase chromosomes have been induced, and the number of G-bands of a cultivar decreases gradually from late prophase to metaphase.
有丝分裂早中期至中期两个不同时期G-带带纹总数减少36％，染色体组的绝对长度缩短25％，带数减少的幅度大于染色体长度缩短的幅度。
The total number of G-bands was reduced by 36 percent, the absolute length of chromosome complement was contracted with 25 percent when cell mitosis proceeded from prometaphase to metaphase.
用改良的CPD染色程序清晰而稳定地显示出这些特征性的CPD带纹为番茄的染色体，特别是有丝分裂中期染色体提供了新的识别标记。
The distinctive CPD bands, which could be constantly and clearly detected using the CPD staining procedure we improved, provided new landmarks for chromosome identification in tomato.
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