OsSPL regulates meiotic fate acquisition in rice

The New Phytologist
Lijun RenZhukuan Cheng

Abstract

In angiosperms, the key step in sexual reproduction is successful acquisition of meiotic fate. However, the molecular mechanism determining meiotic fate remains largely unknown. Here, we report that OsSPOROCYTELESS (OsSPL) is critical for meiotic entry in rice (Oryza sativa). We performed a large-scale genetic screen of rice sterile mutants aimed to identify genes regulating meiotic entry and identified OsSPL using map-based cloning. We showed that meiosis-specific callose deposition, chromatin organization, and centromere-specific histone H3 loading were altered in the cells corresponding to pollen mother cells in Osspl anthers. Global transcriptome analysis showed that the enriched differentially expressed genes in Osspl were mainly related to redox status, meiotic process, and parietal cell development. OsSPL might form homodimers and interact with TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP) transcription factor OsTCP5 via the SPL dimerization and TCP interaction domain. OsSPL also interacts with TPL (TOPLESS) corepressors, OsTPL2 and OsTPL3, via the EAR motif. Our results suggest that the OsSPL-mediated signaling pathway plays a crucial role in rice meiotic entry, which appears to be a conserved regulatory mechanism for meiotic ...Continue Reading

References

May 13, 1999·Bioinformatics·P GouetF Métoz
Sep 29, 1999·Proceedings of the National Academy of Sciences of the United States of America·U SchiefthalerK Schneitz
Mar 10, 2001·Trends in Plant Science·A M BhattH G Dickinson
Mar 8, 2003·Planta·Raj ChaubalPatricia Bedinger
May 6, 2003·Journal of Cell Science·Saul M Honigberg, Kedar Purnapatre
May 18, 2007·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Wojciech P PawlowskiArnaud Ronceret
Nov 27, 2007·The Plant Journal : for Cell and Molecular Biology·Shuping Xing, Sabine Zachgo
Feb 6, 2008·The Plant Journal : for Cell and Molecular Biology·Xinai ZhaoJohn Bennett
Feb 6, 2008·Proceedings of the National Academy of Sciences of the United States of America·Gengxiang JiaDazhong Zhao
Jul 23, 2008·The Plant Journal : for Cell and Molecular Biology·Rainer WaadtJörg Kudla
Feb 11, 2009·Proceedings of the National Academy of Sciences of the United States of America·Wojciech P PawlowskiW Zacheus Cande
Mar 3, 2010·Annual Review of Plant Biology·Wei-Cai YangYan-Hong Chen
Nov 13, 2010·Developmental Biology·Timothy Kelliher, Virginia Walbot
Jun 23, 2011·PLoS Genetics·Maruthachalam RaviSimon W L Chan
Jul 24, 2012·Science·Timothy Kelliher, Virginia Walbot
Aug 24, 2012·The New Phytologist·Lilan HongZhukuan Cheng
Dec 11, 2014·Annual Review of Plant Biology·Raphaël MercierMathilde Grelon
Dec 21, 2014·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Guang-Hui ChenWei-Cai Yang
Jan 7, 2016·Annual Review of Plant Biology·Virginia Walbot, Rachel L Egger
Jan 9, 2016·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Chun WangKejian Wang
May 22, 2016·Plant Physiology·Li YangDabing Zhang
Jan 14, 2017·Plant & Cell Physiology·Shuhei HaoHiroshi Ezura

❮ Previous
Next ❯

Citations

Aug 26, 2018·The Plant Journal : for Cell and Molecular Biology·Changzhen LiuZhukuan Cheng
May 8, 2019·Journal of Experimental Botany·Jorge LoraMathew R Tucker
May 12, 2020·The Plant Journal : for Cell and Molecular Biology·Lijun RenZhukuan Cheng
Apr 29, 2021·The New Phytologist·Alastair Robert PlantBarry Causier
Jun 19, 2021·Plant Reproduction·Rosanna PetrellaLucia Colombo
May 20, 2021·Journal of Experimental Botany·Yazhong WangCharles J Underwood
Aug 17, 2021·The Plant Journal : for Cell and Molecular Biology·Tingting ZhaoZhukuan Cheng
Sep 18, 2021·Annual Review of Genetics·Franziska Böwer, Arp Schnittger

❮ Previous
Next ❯

Related Concepts

Related Feeds

Adult Stem Cells

Adult stem cells reside in unique niches that provide vital cues for their survival, self-renewal, and differentiation. They hold great promise for use in tissue repair and regeneration as a novel therapeutic strategies. Here is the latest research.