4 Chromosome variation in citrus calli occurred at the early stage of the callus formation was observed.

 
  • 4柑桔胚性愈伤组织的染色体观察表明,染色体变异普遍存在并在愈伤组织形成早期就已发生,异常有丝分裂是造成染色体变异的细胞遗传学机制;
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