Interestingly, endosymbiotic proteins that migrated to the plant nucleus became larger than their cyanobacterial orthologs.
有趣的是，迁移至植物核内的内共生蛋白会变得比蓝藻直系同源还要大。
2
Plastids are essential organelles of plant cells and it is believed that plastids have arisen from an endosymbiotic event between a protoeukaryote and a photosynthetic prokaryote.