ArticleBMC plant biology2024
Identification of the new allele ptc1-2 and analysis of the regulatory role of PTC1 gene in rice anther development.
Article in BMC plant biology, 2024. 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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4 citing papers in PubMed.
- Loss of the plastidial hexokinase CsHXK3 triggers metabolic starvation and ROS imbalance leading to pollen abortion in cucumber.The Plant journal : for cell and molecular biology · 2026Article
- The ATP-Citrate Lyase Subunit ACLA, Coordinates Rice Pollen Development by Coupling Transcriptional Regulation with Metabolic Homeostasis.Rice (New York, N.Y.) · 2026Article
- Article
- Insights into the Molecular Basis of Pollen Coat Development and Its Role in Male Sterility.International journal of molecular sciences · 2025Review
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11 authors.
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Abstract
Anther development involves a series of important biological events that are precisely regulated by many genes. Although several important genes involved in rice anther development have been identified, the regulatory network involved in tapetal development and pollen wall formation is still largely unclear. PERSISTENT TAPETAL CELL 1 (PTC1) encodes a PHD-Finger protein, which plays a critical role in the regulation of tapetal cell death and pollen development in rice. Here, we report the isolation and characterization of a new allele ptc1-2 with 2-base deletion in the third exon, causing the absent of the PHD domain due to the sequence change. Cytological analysis revealed delayed tapetal PCD, defective pollen exine formation and abnormal ubisch bodies development. Transcriptome analysis revealed that genes related to pollen wall formation (secondary metabolism, phenylalanine synthesis, and cutin and wax biosynthesis pathways), cell death (cysteine and methionine metabolism and DNA repair pathways), and carbohydrate synthesis (starch and sucrose metabolism pathways) were significantly altered in ptc1-2 mutant. A total of 13 reported anther development genes exhibited significant expression changes in the ptc1-2 mutant. Yeast two-hybrid and BiFC analyses showed that PTC1 could interact with API5, an inhibitor of apoptosis, and the citrin-binding enzyme EDT1. This work is helpful in deepening the understanding of the regulatory network of male reproductive development in rice.
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