摘要
以皇家嘎拉苹果叶片为材料提取总RNA,合成cDNA第一链后,先利用巢式PCR获得苹果脱氢抗坏血酸还原酶(DHAR)基因中间片段,再利用3-′RACE方法进一步获得3′末端核酸序列,共得到840 bp包含完整3′末端的DHAR基因cDNA片段,其序列与烟草、水稻、番茄中DHAR基因序列的同源性均大于70%,证明所克隆到的核苷酸片段确为苹果DHAR基因cDNA片段。
In this study,a cDNA fragment of dehydroascorbate reductase (DHAR) including whole 3'- end was cloned from Royal Gala by RT-(nest) PCR and 3'-RACE. As deduced from the 840 bp cDNA nucleotide,it presented more than 70% homologous traits with tobacco DHAR,Rice DHAR and tomato DHAR,These results suggest that the cDNA fragment is from DHAR gene of Royal Gala.
出处
《西北农林科技大学学报(自然科学版)》
CSCD
北大核心
2007年第1期179-183,共5页
Journal of Northwest A&F University(Natural Science Edition)
基金
西北农林科技大学"拔尖人才支持计划"项目
教育部优秀青年教师资助计划项目(2097)