The continued presence of these selectable markers , especially in food crop , is of increasing public concern 标记基因主要是抗生素或除草剂的抗性基因。
( 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。
( 1 ) the intermediate vector pjar harbors acti promoter , regulating rip gene , and bar gene as selectable marker . this vector was used in gene gun transformation ( 1 )中间载体pjar含act1启动子调控的rip基因,选择标记基因为bar基因,可用于基因枪转化。
A selectable marker is a gene introduced into a cell, especially a bacterium or to cells in culture, that confers a trait suitable for artificial selection. They are a type of reporter gene used in laboratory microbiology, molecular biology, and genetic engineering to indicate the success of a transfection or other procedure meant to introduce foreign DNA into a cell.