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Developmental expression of polyubiquitin genes and distribution of ubiquitinated proteins in generative and sperm cells

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Sexual Plant Reproduction Aims and scope Submit manuscript

Abstract.

Polyubiquitin-encoding cDNA clones were isolated from the generative cells of lily (Lilium longiflorum) and the sperm cells of Plumbago zeylanica. The described genes encode identical amino acid sequences, with no homology outside the coding regions. This gene participates in ubiquitination of proteins, presumably enhancing protein turnover in the germline during male reproductive differentiation. In this paper we show that the gene encoding polyubiquitin is highly up-regulated in both Lilium generative cells and one of the Plumbago sperm cell types in particular.

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Authors and Affiliations

  1. Plant Molecular Biology and Biotechnology Laboratory, Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria 3010, Australia, , , , ,

    Mohan B. Singh, Huiling Xu, Prem L. Bhalla & Ines Swoboda

  2. Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA, , , , ,

    Zhaojie Zhang & Scott D. Russell

Authors
  1. Mohan B. Singh
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  2. Huiling Xu
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  3. Prem L. Bhalla
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  4. Zhaojie Zhang
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  5. Ines Swoboda
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  6. Scott D. Russell
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Singh, M.B., Xu, H., Bhalla, P.L. et al. Developmental expression of polyubiquitin genes and distribution of ubiquitinated proteins in generative and sperm cells. Sex Plant Reprod 14, 325–329 (2002). https://doi.org/10.1007/s00497-001-0126-0

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  • DOI: https://doi.org/10.1007/s00497-001-0126-0

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