Biology Department, Brookhaven National Laboratory, Upton, New York 11973.
Genetics. 1973 Nov;75(3):465-83. doi: 10.1093/genetics/75.3.465.
A nuclear gene mutation in Oenothera hookeri increases the frequency of variegated sectors. The gene is recessive; the variegation is cytoplasmically transmitted. Once variegation is induced, the mutant gene is not required for its continued expression. The induced sectors may differ one from another. The gene expresses unique patterns of penetrance and of maternal effect. The genetic data implicate the chloroplasts as the site for the expression of variegation. The chloroplasts of O. parviflora are also subject to the action of the nuclear gene. Possible mechanisms by which a gene might cause chloroplasts to mutate are discussed.
奥氏野芝麻中核基因突变会增加花斑区域的频率。该基因是隐性的；花斑是细胞质遗传的。一旦诱导出现花斑，突变基因就不再是其持续表达所必需的了。诱导产生的花斑区域可能彼此不同。该基因表现出独特的外显率和母性效应模式。遗传数据表明，叶绿体是花斑表达的位点。奥氏野芝麻的叶绿体也受到核基因的作用。讨论了基因使叶绿体发生突变的可能机制。
