叶绿体 DNA (cpDNA ) 和 16 Populus 种类(节 Leuce ) 和他们的 F1 产生的 mitochondrial DNA (mtDNA ) 用 PCR-RFLP 技术被检测。结果证明在 22 混合联合的 F1 产生的 cpDNA 是继承似母亲,它支持了 plasmid 细胞学的学习的结论。PCR 放大的 mtDNA 碎片与在所有混合联合的限制地图一致,没有多型性被检测,显示节 Leuce 高度在 mitochondrial 基因序列被保存。提供的这些结果在 Populus tomentosa 指导母亲的叶绿体继承的证据, P。bolleana, P。davidiana, P。adenopoda, P。tomentosa
The chloroplast DNA (cpDNA) and mitochondrial DNA (mtDNA) of 16 Populus species (Section Leuce) and their F1 generation were detected using PCR-RFLP technique. The results show that cpDNA in the F1 generation of 22 hybrid combinations was inherited maternally, which supported the conclusions of the study of plasmid cytology. The mtDNA fragments amplified by PCR were consistent with the restriction maps in all hybrid combinations and no polymorphism was detected, indicating that the Section Leuce is highly conserved in mitochondrial gene sequences. These results provided direct evidence of maternal chloroplast inheritance in Populus tomentosa, P. bolleana, P. davidiana, P. adenopoda, P. tomentosa × P. bolleana, P. alba × P. glandulosa and P. alba × P. tomentosa.