marker n. 1.作记号的人;打分数的人;记分器;划线器;指示器;【无线电】指点标;(撞球等的)记分员。 2.【军事】标靶兵;标兵;标竿;旗标;书签;〔美国〕纪念标,纪念碑;里程碑。 3.(校中专职)点名先生;经常给学生记分数的先生;监猎人。 4.【英军】(轰炸用)照明弹。 5.〔美国〕遗传标记,基因标记。 a marker light 标灯。 a ground marker地面照明弹。 not a marker to [on] 〔美国〕不能和…相比,远远配不上。
( 3 ) the interest gene in p3301rip is under the control of double 35s promoter and the selectable marker gene is bar gene ( 3 )表达载体p3301rip中目的基因由双35s启动子调控,选择标记基因为bar基因。
Two techniques , segregation excision and recombination excision , for removal of selectable marker genes are discribed in this article 培育无标记基因的转基因植株已成为植物生物工程研究中的新课题。
( 2 ) the interest gene in pcar is under the control of acti which is the strong promoter in rice . the selectable marker gene is hyg gene ( 2 )表达载体pcar中目的基因由单子叶强启动子水稻act1启动子调控,选择标记基因为潮霉素抗性基因。
Currently used plant transformation systems require selectable marker genes encoding antibiotic or herbicide resistance , along with the gene of interest , to select transformed cells from a large population of mostly untransformed cells 摘要在目前的植物转化系统中,要求在关注基因或目的基因转入细胞时,同时有标记基因存在。