The Men-10 cDNA encodes a novel form of proline-rich protein expressed in the tapetum of dioecious Silene latifolia |
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Authors: | Charles P Scutt P M Gilmartin |
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Institution: | (1) Centre for Plant Biochemistry and Biotechnology, University of Leeds, Leeds LS2 9JT, UK e-mail: phil@bmb.leeds.ac.uk Tel. +44 113 233 2902; Fax +44 113 233 3144, GB |
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Abstract: | The Men-10 gene is expressed specifically in the tapetum tissue that surrounds and nourishes the developing microspores in the dioecious
plant species, Silene latifolia. Men-10 encodes a proline-rich protein that contains a predicted signal region, indicating that it may be secreted from the tapetal
cells and function in the extracellular domain of the tapetum or be translocated to the developing microspores. Here we report
the sequence and precise expression pattern of the Men-10 cDNA and demonstrate a high level of restriction fragment length polymorphism associated with the Men-10 locus. The possible classification of Men-10 amongst known groups of proline- and hydroxyproline-rich glycoproteins, such
as the arabinogalactan proteins, is discussed.
Received: 20 December 1997 / Revision accepted: 2 July 1998 |
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Keywords: | Men-10 Silene latifolia Tapetum Proline-rich protein Arabinogalactan protein |
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