Chase Christine D
Horticultural Sciences Department, University of Florida Institute of Food and Agricultural Sciences, Gainesville, FL 32611-0690, USA.
Trends Plant Sci. 2006 Jan;11(1):7-9. doi: 10.1016/j.tplants.2005.11.003. Epub 2005 Dec 13.
Cytoplasmic male sterility, conditioned by some maternally inherited plant mitochondrial genomes, is the most expedient method to produce uniform populations of pollen-sterile plants on a commercial scale. Plant mitochondrial genomes are not currently amenable to genetic transformation, but genetic manipulation of the plastid genome allows engineering of maternally inherited traits in some species. A recent study has shown that the Acinetobacter beta-ketothiolase gene, expressed in the Nicotiana tabacum plastid, conditions maternally inherited male sterility, laying the groundwork for new approaches to control pollen fertility in crop plants.
细胞质雄性不育由一些母系遗传的植物线粒体基因组决定，是在商业规模上生产花粉不育植物均匀群体的最便捷方法。目前植物线粒体基因组尚不能进行遗传转化，但对质体基因组的遗传操作使得在某些物种中对母系遗传性状进行工程改造成为可能。最近一项研究表明，在烟草质体中表达的不动杆菌β-酮硫解酶基因可导致母系遗传的雄性不育，为控制作物花粉育性的新方法奠定了基础。
