Doebley J, Morden C W, Schertz K F
Biochem Genet. 1986 Dec;24(11-12):813-9. doi: 10.1007/BF00554521.
Malate dehydrogenase (MDH) isozymes extracted from dark-grown seedlings of Sorghum species are encoded by at least two genes with their products localized in the mitochondria (mt) and one gene with its products localized in the cytosol. In homozygous genotypes, the three mt-MDH isozymes represent two homodimers and an intergenic heterodimer. For some plants of S. virgatum and S. aethiopicum, the three mt-MDH isozymes migrate about 3 mm faster (more anodally) when electrophoresed on starch gels. The F1's of plants with normal and fast mt-MDHs had normal migration; the F2's segregate 3:1 for normal to fast migration. It is suggested that a single gene, Mmm (mt-MDH modifier), controls this modification of normal migration and that fast migration occurs when the recessive allele (mmm-m) is homozygous. The designation, Mmm, is borrowed from Zea mays, in which a similar gene has been described.
从高粱属黑暗生长的幼苗中提取的苹果酸脱氢酶（MDH）同工酶由至少两个基因编码，其产物定位于线粒体（mt），还有一个基因，其产物定位于细胞质。在纯合基因型中，三种线粒体MDH同工酶代表两种同型二聚体和一种基因间异源二聚体。对于一些柳枝稷和埃塞俄比亚高粱植株，当在淀粉凝胶上进行电泳时，三种线粒体MDH同工酶迁移速度快约3毫米（更向阳极）。具有正常和快速线粒体MDH的植株的F1代具有正常迁移；F2代中正常迁移与快速迁移的分离比为3:1。有人提出，一个单一基因Mmm（线粒体MDH修饰基因）控制这种正常迁移的修饰，当隐性等位基因（mmm - m）纯合时会出现快速迁移。名称Mmm是从玉米中借用的，在玉米中已描述了一个类似的基因。
