Zhang, Xuecheng and Shi, Ce and Li, Siling and Zhang, Bo and Luo, Pan and Peng, Xiongbo and Zhao, Peng and Dresselhaus, Thomas and Sun, Meng -Xiang (2023) A female<i> in</i><i> vivo</i> haploid-induction system via mutagenesis of egg cell-specific peptidases. MOLECULAR PLANT, 16 (2). pp. 471-480. ISSN 1674-2052, 1752-9867
Full text not available from this repository. (Request a copy)Abstract
Crop breeding schemes can be significantly accelerated by using (doubled) haploid plants. In vivo haploid induction has been applied in plant breeding for decades but is still not available for all crops and geno-types, and haploidization rates are generally very low. Therefore, methodological improvements to and new concepts for haploidization are required. Here, we report a novel system for the induction of haploid plants by mutating genes encoding egg cell-specific aspartic endopeptidases (ECSs). We show that after successful sperm-egg cell fusion, ECSs play a critical role to ensure male and female nucleus fusion after fertilization. The ecs1 ecs2 double mutant can induce haploids by both selfing and hybridization in Arabidopsis and ECS mutation is also capable of producing haploids in rice. In summary, our study de-velops a novel approach for maternal haploidization and provides new insights into the molecular basis of fertilization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHOSPHOLIPASE; MAIZE; FORMAT; RICE; haploid induction; egg cell; maternal inducer; semigamy; fertilization |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Zellbiologie und Pflanzenphysiologie (Prof. Dr. Klaus Grasser) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Jan 2024 10:45 |
| Last Modified: | 30 Jan 2024 10:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60167 |
Actions (login required)
 |
View Item |
