Koterniak V V
Genetika. 2006 Feb;42(2):185-91.
A modifier of the Bg autonomous element of the Bg-rbg system of transposable elements has been found in the genotype of the inbred maize strain 346. In the presence of this modifier (termed Mbg), the frequency of reversion of mutable allele o2-lf in combination with the Bg-lf element increases by 7-24 times. An increase in the Mbg dosage by three times increases the o2-lf reversion frequency by a factor of about two. The presence of Mbg and Bg-lf in the same genotype before meiosis is necessary for the expression of the Mbg modifying effect. The possible nature and mechanism of action of the novel modifier are discussed.
在自交系玉米品系346的基因型中发现了转座因子Bg-rbg系统的Bg自主元件的一个修饰因子。在这种修饰因子（称为Mbg）存在的情况下，与Bg-lf元件组合的可变等位基因o2-lf的回复频率增加了7至24倍。将Mbg剂量增加三倍，o2-lf回复频率增加约两倍。减数分裂前同一基因型中存在Mbg和Bg-lf是Mbg修饰效应表达所必需的。讨论了这种新型修饰因子可能的性质和作用机制。
