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Updated: Aug 16, 2026

Determination of Self- and Inter-(in)compatibility Relationships in Apricot Combining Hand-Pollination, Microscopy and Genetic Analyses
Published on: June 16, 2020
[Progress in study on signal transduction of gametophytic self-incompatibility]
Xing-Guo Lan1, Xiao-Min Yu, Yu-Hua Li
1Institute of Flower Biotechnology, Northeast Forestry University, Harbin 150040, China. lanxingguo@126.com
Abstract:
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.
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