ArticleProceedings of the National Academy of Sciences of the United States of America2003
The classical Ubisch bodies carry a sporophytically produced structural protein (RAFTIN) that is essential for pollen development.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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64 citing papers in PubMed.
- The SbTDR gene is required for anther development and male fertility in Sorghum bicolor.Plant reproduction · 2026Article
- Comparative Transcriptomics Analysis Reveals Genes Associated with a Dehiscent-Corolla Mutant in Sesame (International journal of molecular sciences · 2025Article
- Genome-Wide Analysis of BURP Domain-Containing Gene Family inInternational journal of molecular sciences · 2024Article
- Histochemical and ultrastructural analysis of tapetum and sporoderm development in relation to precocious pollenkitt production of Garcinia dulcis (Roxb.) Kurz.Protoplasma · 2024Article
- Genome-wide identification and expression analysis of the BURP domain-containing genes inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2023Article
- Biosynthesis and transport of pollen coat precursors in angiosperms.Nature plants · 2023Review
- Identification and expression analysis of BURP domain-containing genes in jujube and their involvement in low temperature and drought response.BMC genomics · 2022Article
- The proteome of developing barley anthers during meiotic prophase I.Journal of experimental botany · 2022Article
- Epigenetic Regulation of Heat Stress in Plant Male Reproduction.Frontiers in plant science · 2022Review
- Abnormal anther development leads to lower spikelet fertility in rice (Oryza sativa L.) under high temperature during the panicle initiation stage.BMC plant biology · 2021Article
- Genome-wide identification and transcriptional characterization of DNA methyltransferases conferring temperature-sensitive male sterility in wheat.BMC genomics · 2021Article
- Plant Copper Metalloenzymes As Prospects for New Metabolism Involving Aromatic Compounds.Frontiers in plant science · 2021Review
- Microgametophyte Development inFrontiers in plant science · 2021Article
- A triticale tapetal non-specific lipid transfer protein (nsLTP) is translocated to the pollen cell wall.Plant cell reports · 2020Article
- OsMYB80 Regulates Anther Development and Pollen Fertility by Targeting Multiple Biological Pathways.Plant & cell physiology · 2020Article
- An irregularly striped rind mutant reveals new insight into the function of PG1β in cucumber (Cucumis sativus L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Chromosome Pairing in Polyploid Grasses.Frontiers in plant science · 2020Review
- The Major Factors Causing the Microspore Abortion of Genic Male Sterile MutantInternational journal of molecular sciences · 2019Article
- Article
- OsDGD2β is the Sole Digalactosyldiacylglycerol Synthase Gene Highly Expressed in Anther, and its Mutation Confers Male Sterility in Rice.Rice (New York, N.Y.) · 2019Article
4 more citing papers are in PubMed but not listed here.
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5 authors.
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Abstract
Pollen fecundity is crucial to crop productivity and also to biodiversity in general. Pollen development is supported by the tapetum, a metabolically active sporophytic nurse layer that devotes itself to this process. The tapetum in cereals and a vast majority of other plants is of the nonamoeboid type. Unable to reach out to microspores, it secretes nutrients into the anther locule where the microspores reside and develop. Orbicules (Ubisch bodies), studied in various plants since their discovery approximately 140 years ago, are a hallmark of the secretory tapetum. Their significance to tapetal or pollen development has not been established. We have identified in wheat and rice an anther-specific single-copy gene (per haploid genome equivalent) whose suppression in rice by RNA interference nearly eliminated the seed set. The flowers in the transgenics were normal for female functions, but the pollen collapsed and became less viable. Further characterization of the gene product, named RAFTIN, in wheat has shown that it is present in pro-orbicule bodies and it is accumulated in Ubisch bodies. Furthermore, it is targeted to microspore exine. Although the carboxyl portion of RAFTINs shares short, dispersed amino acid sequences (BURP domain) in common with a variety of proteins of disparate biological contexts, the occurrence RAFTIN per se is limited to cereals; neither the Arabidopsis genome nor the vast collection of ESTs suggests any obvious dicot homologs. Furthermore, our results show that RAFTIN is essential for the late phase of pollen development in cereals.
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