TY - JOUR
T1 - Systems and breakdown of self-incompatibility
AU - Ahmad, Muhammad Husnain
AU - Rao, Muhammad Junaid
AU - Hu, Jianbing
AU - Xu, Qiang
AU - Liu, Chenchen
AU - Cao, Zonghong
AU - Larkin, Robert M.
AU - Deng, Xiuxin
AU - Bosch, Maurice
AU - Chai, Lijun
N1 - Funding Information:
This project was financially supported by the National Key Research and Development Program of China [2021YFD1200200], the National Natural Science Foundation of China [32122075, 32072523].
Publisher Copyright:
© 2022 Taylor & Francis Group, LLC.
PY - 2022/7/20
Y1 - 2022/7/20
N2 - Self-incompatibility (SI) is a prezygotic mechanism that prevents self-pollination in flowering plants by distinguishing between nonself- and self-pollen. It controls sexual reproduction by promoting outcrossing and avoiding inbreeding. For thousands of years, this trait has been effectively exploited by breeders and growers as a tool to manipulate domesticated crops. However, efforts to spell out the molecular features of SI have begun only during the past thirty years. For breeders that need to produce homozygous lines, SI is undesirable. Moreover, in fruit crops, SI hinders the production of true to type plants and high-quality fruits with uniform traits because SI favors outcrossing. Numerous techniques have been developed to break down SI. Here, we review the current understanding of different molecular SI systems and pinpoint different physiological and molecular techniques used to break down SI. We also discuss evolutionary events that led to the transition from SI to self-compatibility (SC).
AB - Self-incompatibility (SI) is a prezygotic mechanism that prevents self-pollination in flowering plants by distinguishing between nonself- and self-pollen. It controls sexual reproduction by promoting outcrossing and avoiding inbreeding. For thousands of years, this trait has been effectively exploited by breeders and growers as a tool to manipulate domesticated crops. However, efforts to spell out the molecular features of SI have begun only during the past thirty years. For breeders that need to produce homozygous lines, SI is undesirable. Moreover, in fruit crops, SI hinders the production of true to type plants and high-quality fruits with uniform traits because SI favors outcrossing. Numerous techniques have been developed to break down SI. Here, we review the current understanding of different molecular SI systems and pinpoint different physiological and molecular techniques used to break down SI. We also discuss evolutionary events that led to the transition from SI to self-compatibility (SC).
KW - Breakdown
KW - homozygous lines
KW - reproduction
KW - self-incompatibility
UR - http://www.scopus.com/inward/record.url?scp=85134557857&partnerID=8YFLogxK
U2 - 10.1080/07352689.2022.2093085
DO - 10.1080/07352689.2022.2093085
M3 - Article
AN - SCOPUS:85134557857
SN - 0735-2689
VL - 41
SP - 209
EP - 239
JO - Critical Reviews in Plant Sciences
JF - Critical Reviews in Plant Sciences
IS - 3
ER -