[Progress in study on signal transduction of gametophytic self-incompatibility].
In nature, most self-incompatible flowering plants (angiosperms) show gametophytic self-incompatibility. Although gametophytic self-incompatibility functions can ultimately prevent self-fertilization, flowering plants have adopted different signal transduction pathways to reject self pollen. At present, there are mainly two pathways of signal transduction on gametophytic self-incompatibility. One is the S-RNase-based signal transduction in Solanaceae, Scrophulariaceae, and Rosaceae. The other is the cytosolic free Ca2+ acting as a second messenger in pollen of Papaveraceae. This review highlights the recent progress made towards understanding the signal transduction on gametophytic self-incompatibility.
Lan
Xing-Guo
XG
Institute of Flower Biotechnology, Northeast Forestry University, Harbin 150040, China. lanxingguo@126.com
Yu
Xiao-Min
XM
Li
Yu-Hua
YH
D019607:Brassicaceae / Q000235:genetics / Q000378:metabolism; D005306:Fertilization / Q000235:genetics / Q000502:physiology; D010207:Papaver / Q000235:genetics / Q000378:metabolism; D010940:Plant Proteins / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism; D011058:Pollen / Q000166:cytology / Q000378:metabolism / Q000502:physiology*; D012098:Reproduction / Q000235:genetics / Q000502:physiology; D012260:Ribonucleases / Q000378:metabolism; D015398:Signal Transduction / Q000235:genetics* / Q000502:physiology
D010940:Plant Proteins; D012260:Ribonucleases; C022542:ribonuclease S