Gene, protein, and network of male sterility in rice

Abstract

Rice is one of the most important model crop plants whose heterosis has been well-exploited in commercial hybrid seed production via a variety of types of male-sterile lines. Hybrid rice cultivation area is steadily expanding around the world, especially in Southern Asia. Characterization of genes and proteins related to male sterility aims to understand how and why the male sterility occurs, and which proteins are the key players for microspores abortion. Recently, a series of genes and proteins related to cytoplasmic male sterility (CMS), photoperiod-sensitive male sterility, self-incompatibility, and other types of microspores deterioration have been characterized through genetics or proteomics. Especially the latter, offers us a powerful and high throughput approach to discern the novel proteins involving in male-sterile pathways which may help us to breed artificial male-sterile system. This represents an alternative tool to meet the critical challenge of further development of hybrid rice. In this paper, we reviewed the recent developments in our understanding of male sterility in rice hybrid production across gene, protein, and integrated network levels, and also, present a perspective on the engineering of male-sterile lines for hybrid rice production.

Uncovering Divergence of Rice Exon Junction Complex Core Heterodimer Gene Duplication Reveals Their Essential Role in Growth, Development, and Reproduction

“…This was shown by the interaction of PFMAGO with MPF2, a MADS domain regulatory factor in P. floridana (He et al, 2007). Alternatively, the observed transcriptional regulation might be a consequence of the abnormal splicing of OsUDT1, an upstream regulator in the network of male fertility in rice (Wang et al, 2013). Nevertheless, further investigations in rice are required to support these notions.…”

“…Each experiment was performed with three independent samples, and error bars represent SD. development in rice (Wang et al, 2013). The interconnections of EJC subunits are important for correct gene expression in Arabidopsis (Mufarrege et al, 2011).…”

Doubled Haploid ‘CUDH2107’ as a Reference for Bulb Onion (Allium cepa L.) Research: Development of a Transcriptome Catalogue and Identification of Transcripts Associated with Male Fertility

“…The identification of genes involved in these processes allows better understanding of the molecular mechanism of male fertility [13] and will assist breeders to develop male sterile lines to utilize in heterosis breeding [13, 37]. Using our transcriptome data which was derived from developing flower buds and flowers (and other tissues) of normal male fertile plants, we found potential orthologues of a range of rice genes involved in male fertility and flower development (Table 3).…”

“…The next step would be to functionally characterize these genes to identify those that could be mutated to develop male sterile lines for hybrid production. A variety of approaches have been used for the production of a transgenic male sterility–fertility restoration system [37, 81–86]. Targeted mutagenesis has been utilized in maize to induce mutations in male fertility genes [81–83].…”

Defective Tapetum Cell Death 1 (DTC1) Regulates ROS Levels by Binding to Metallothionein during Tapetum Degeneration

“…Disturbances in tapetum development and degeneration are associated with male sterility; those two events occur sequentially during anther development (Wilson and Zhang, 2009;Wang et al, 2013;Zhang and Yang, 2014). In rice, tapetal cell identification begins after specification of the anther wall by the LRR RLK receptor kinase MULTIPLE SPOROCYTES 1 (MSP1) and TDR INTERACTING PROTEIN2 (TIP2), a helixloop-helix (bHLH) transcription factor (Nonomura et al, 2003;Fu et al, 2014).…”