Department of Biology, University of York, Heslington, York, YO1 5DD, United Kingdom.
Plant Physiol. 1992 Jul;99(3):1005-8. doi: 10.1104/pp.99.3.1005.
We have isolated three mutants of Arabidopsis thaliana in which there is a sevenfold change in chloroplast number in fully expanded leaf mesophyll cells and increases and decreases in chloroplast number are compensated for by changes in chloroplast size. The changes are stably inherited in sexual crosses for three generations and mutant phenotypes are effected by changes at single recessive nuclear loci, termed arc loci. This is the first report of large, stably inherited changes in chloroplast number in higher plants, and represents a major advance toward the genetic dissection of the control of chloroplast division.
我们已经分离到拟南芥的三个突变体，在这些突变体的完全展开的叶肉细胞中叶绿体数目增加了 7 倍，叶绿体数目增加和减少是由叶绿体大小的变化来补偿的。这些变化在三代有性杂交中稳定遗传，并且突变表型是由单个隐性核基因座（称为 arc 基因座）的变化引起的。这是高等植物中叶绿体数目发生大的、稳定遗传变化的首次报道，代表着在叶绿体分裂的控制的遗传分析方面取得了重大进展。
