ArticlePlant molecular biology2010
RA68 is required for postmeiotic pollen development in Oryza sativa.
Article in Plant molecular biology, 2010. 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.
- Integrated Isoform Sequencing and Dynamic Transcriptome Analysis Reveals Diverse Transcripts Responsible for Low Temperature Stress at Anther Meiosis Stage in Rice.Frontiers in plant science · 2021Article
- The Rice Eukaryotic Translation Initiation Factor 3 Subunit f (OseIF3f) Is Involved in Microgametogenesis.Frontiers in plant science · 2016Article
- Collapsed abnormal pollen1 gene encoding the Arabinokinase-like protein is involved in pollen development in rice.Plant physiology · 2013Article
- Characterization of callase (β-1,3-D-glucanase) activity during microsporogenesis in the sterile anthers of Allium sativum L. and the fertile anthers of A. atropurpureum.Sexual plant reproduction · 2012Article
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Authors and funding
3 authors.
Funding
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Abstract
Postmeiotic development is a unique characteristic of flowering plants. During the development, microspores undergo two cycles of mitosis (PMI and PMII) and a subsequent maturation process to finally produce the mature pollen, but the mechanism underlying the development is still largely unknown. Here, we report on the roles of a novel gene, RA68, in postmeiotic pollen development in Oryza sativa. RA68 was expressed preferentially in shoots and flowers. In flowers, the transcript persisted from the floral organ differentiation to the mature pollen stages and showed preferential accumulation in male meiocytes, developing pollen and tapetal cells. RA68-deficient RNAi lines showed reduced seed setting and pollen viability but not an aberrant phenotype in vegetative organs. Knockdown of RA68 led to arrested PMI, smaller pollen grains with little or no starch, and aborted pollen but not severely distruped male meiosis. Additionally, no abnormality of anther wall development was observed in RA68-RNAi lines. RA68 may be required for postmeiotic pollen development by affecting PMI and starch accumulation.
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