Figure 4

Anther development and pollen formation in diploid yellow potato (Solanum tuberosum Phureja Group) Criolla Colombia cultivar. States of development: 8–10. E epidermis, Ex exine, Msp microspore, PG pollen grain, Sr stomium region, St septum, V vascular tissue. Scale bars, 100 µm (column 1); 50 µm (column 2); 25 µm (column 3). Image created by the authors.