期刊
PLANT REPRODUCTION
卷 33, 期 3-4, 页码 159-171出版社
SPRINGER
DOI: 10.1007/s00497-020-00392-y
关键词
Self-incompatibility; Pollination; Arabidopsis; Brassica; Glyoxalase I; Pollen-pistil interactions
资金
- NMSU
- Howard Hughes Medical Institute, Research Scholars Program [52008103]
Members of the Brassicaceae family have the ability to regulate pollination events occurring on the stigma surface. InBrassicaspecies, self-pollination leads to an allele-specific interaction between the pollen small cysteine-rich peptide ligand (SCR/SP11) and the stigmatic S-receptor kinase (SRK) that activates the E3 ubiquitin ligase ARC1 (Armadillo repeat-containing 1), resulting in proteasomal degradation of various compatibility factors including glyoxalase I (GLO1) which is necessary for successful pollination. InBrassica napus, the suppression of GLO1 was sufficient to reduce compatibility, and overexpression of GLO1 in self-incompatibleBrassica napusstigmas resulted in partial breakdown of the self-incompatibility response. Here, we verified ifBnGLO1 could function as a compatibility factor in the artificial self-incompatibility system ofArabidopsis thalianaexpressingAlSCR(b),AlSRK(b)andAlARC1 proteins fromA. lyrata. Overexpression ofBnGLO1 is sufficient to breakdown self-incompatibility response inA. thalianastigmas. Therefore, GLO1 has an indisputable role as a compatibility factor in the stigma in regulating pollen attachment and pollen tube growth. Lastly, this study demonstrates the usefulness of an artificial self-incompatibility system inA. thalianafor interspecific self-incompatibility studies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据