ArticleBMC plant biology2025
Comparative transcriptome analysis reveals key genes associated with meiotic stability and high seed setting rate in tetraploid rice.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Comparative physiological, hormonal, and transcriptional analyses reveal the difference between diploid and autotetraploid rice under cadmium stress.Plant cell reports · 2026Article
- HSP101-encoding NEO-TETRAPLOID RICE FERTILITY GENE 1 regulates tapetum development through interaction with SAPK2 in polyploid rice.Journal of integrative plant biology · 2026Article
- The impact of genome duplication on agronomically valuable traits in Ribes nigrum L.: a morpho-anatomical, physiological and cytogenetic evaluation.BMC plant biology · 2026Article
- The function of OsRAD51A1 gene in meiotic stability and high seed-setting rate of tetraploid rice.Plant cell reports · 2026Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundPolyploid rice has a high yield potential and excellent nutritional quality. The development of polyploid rice remained critically limited for several decades due to low seed setting rate until the successful breeding of polyploid meiosis stability (PMeS) lines. To determine the mechanism responsible for meiotic stability and high seed setting rate of PMeS line, agronomic traits, pollen fertility and viability, and meiotic behaviors of PMeS and non-PMeS lines were investigated. Further, comparative transcriptome analysis was performed to identify genes associated with meiotic stability and high seed setting rate in PMeS line.
resultsThe seed setting rate, fertile and viable pollen ratios of PMeS line were significantly higher than those of non-PMeS line. The PMeS line exhibited stable meiosis, and chromosomes mainly paired as bivalents, rarely as univalents and multivalents in prophase I. Few lagging chromosomes were observed in anaphase I. By contrast, the homologous chromosomes pairing was disorganized in the non-PMeS line, with low frequencies of bivalents and high frequencies of univalents and multivalents in prophase I, while more cells with increased lagging chromosomes were detected in anaphase I. Many differentially expressed genes (DEGs) between PMeS and non-PMeS lines were identified through comparative transcriptome analysis. Some meiosis-related genes were specifically investigated from all DEGs. Further, several meiotic genes were identified as candidate genes.
conclusionsThe study not only demonstrates the morphological, cytological, and molecular differences between the PMeS and non-PMeS lines, but also provides several key genes associated with meiotic stability and high seed setting rate in tetraploid rice.
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