ArticlePlant biotechnology journal2016
Down-regulation of OsSPX1 caused semi-male sterility, resulting in reduction of grain yield in rice.
Article in Plant biotechnology journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.
- Meta-analysis of identified genomic regions and candidate genes underlying salinity tolerance in rice (Oryza sativa L.).Scientific reports · 2024Pooled it
- The OsWRKY15-OsSUT3 Regulatory Module Enhances Rice Pollen Fertility by Mediating Sucrose Allocation to Anthers.Plant biotechnology journal · 2026Article
- Identification of candidate genes that regulate the trade-off between seedling cold tolerance and fruit quality in melon (Horticulture research · 2023Article
- Mutation of DEFECTIVE EMBRYO SAC1 results in a low seed-setting rate in rice by regulating embryo sac development.Journal of experimental botany · 2023Article
- Transcriptome Analysis of Triple Mutant for OsMADS62, OsMADS63, and OsMADS68 Reveals the Downstream Regulatory Mechanism for Pollen Germination in Rice (International journal of molecular sciences · 2021Article
- Genomic insight into balancing high yield, good quality, and blast resistance of japonica rice.Genome biology · 2021Article
- Integrated Analysis of Small RNA, Transcriptome, and Degradome Sequencing Reveals the MiR156, MiR5488 and MiR399 are Involved in the Regulation of Male Sterility in PTGMS Rice.International journal of molecular sciences · 2021Article
- The miR399-Plant physiology · 2020Article
- Exploring the Relationships Between Yield and Yield-Related Traits for Rice Varieties Released in China From 1978 to 2017.Frontiers in plant science · 2019Article
- Genome-wide identification and comparative analysis of phosphate starvation-responsive transcription factors in maize and three other gramineous plants.Plant cell reports · 2018Article
- 2D association and integrative omics analysis in rice provides systems biology view in trait analysis.Communications biology · 2018Article
- Response of microRNAs to cold treatment in the young spikes of common wheat.BMC genomics · 2017Article
- Down-Regulation ofFrontiers in plant science · 2017Article
- Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
OsSPX1, a rice SPX domain gene, involved in the phosphate (Pi)-sensing mechanism plays an essential role in the Pi-signalling network through interaction with OsPHR2. In this study, we focused on the potential function of OsSPX1 during rice reproductive phase. Based on investigation of OsSPX1 antisense and sense transgenic rice lines in the paddy fields, we discovered that the down-regulation of OsSPX1 caused reduction of seed-setting rate and filled grain number. Through examination of anthers and pollens of the transgenic and wild-type plants by microscopy, we found that the antisense of OsSPX1 gene led to semi-male sterility, with lacking of mature pollen grains and phenotypes with a disordered surface of anthers and pollens. We further conducted rice whole-genome GeneChip analysis to elucidate the possible molecular mechanism underlying why the down-regulation of OsSPX1 caused deficiencies in anthers and pollens and lower seed-setting rate in rice. The down-regulation of OsSPX1 significantly affected expression of genes involved in carbohydrate metabolism and sugar transport, anther development, cell cycle, etc. These genes may be related to pollen fertility and male gametophyte development. Our study demonstrated that down-regulation of OsSPX1 disrupted rice normal anther and pollen development by affecting carbohydrate metabolism and sugar transport, leading to semi-male sterility, and ultimately resulted in low seed-setting rate and grain yield.
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