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| DOI: | 10.1104/pp.105.062059 |
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| Web URL(s): | http://www.plantphysiol.org/content/138/4/2185.full
Last checked: 03/14/2012
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| Publication Type:
| Refereed |
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| Author(s): | Albertini, Emidio;
Marconi, Gianpiero;
Reale, Lara;
Barcaccia, Gianni;
Porceddu, Andrea;
Ferranti, Francesco;
Falcinelli, Mario |
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| Author Affiliation: | Albertini, Marconi, Reale, Ferranti, and Falcinelli: Department of Plant Biology and Agro-Environmental and Animal Biotechnology, University of Perugia, Perugia; Barcaccia: Department of Environmental Agronomy and Crop Science, University of Padova, Padova; Porceddu: Institute of Plant Genetics, Research Division of Perugia, Perugia, Italy |
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| Title: | SERK and APOSTART. Candidate genes for apomixis in Poa pratensis |
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| Section: | Whole plant and ecophysiology
Other records with the "Whole plant and ecophysiology" Section
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| Source: | Plant Physiology. Vol. 138, No. 4, August 2005, p. 2185-2199. |
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| Publishing Information: | Rockville, MD: American Society of Plant Physiologists |
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| # of Pages: | 15 |
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| Related Web URL: | http://www.plantphysiol.org/content/138/4/2185.abstract
Last checked: 03/14/2012
Notes: Abstract only
http://www.plantphysiol.org/content/suppl/2005/07/11/pp.105.062059.DC1/62059Figure_S1.tif
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http://www.plantphysiol.org/content/suppl/2005/07/11/pp.105.062059.DC1/62059Table_S1.doc
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http://www.plantphysiol.org/content/suppl/2005/07/11/pp.105.062059.DC1/62059Table_S2.doc
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http://www.plantphysiol.org/powerpoint/138/4/2185
Last checked: 06/22/2012
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Notes: Slides of all figures |
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| Keywords: | TIC Keywords: Apomixis; Clones; Gene expression; Fluorescence in situ hybridization; Hybridization; Meiosis; Poa pratensis; Reproductive physiology; Seed production
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| Abstract/Contents: | "Seed production generally requires the mating of opposite sex gametes. Apomixis, an asexual mode of reproduction, avoids both meiotic reduction and egg fertilization. The essential feature of apomixis is that an embryo is formed autonomously by parthenogenesis from an unreduced egg of an embryo sac generated through apomeiosis. If apomixis were well understood and harnessed, it could be exploited to indefinitely propagate superior hybrids or specific genotypes bearing complex gene sets. A more profound knowledge of the mechanisms that regulate reproductive events would contribute fundamentally to understanding the genetic control of the apomictic pathway. In Poa pratensis, we isolated and characterized two genes, PpSERK (SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE) and APOSTART. These full-length genes were recovered by rapid amplification of cDNA ends and their temporal and spatial expression patterns were assessed by reverse transcription-polymerase chain reaction and in situ hybridization, respectively. The expression of PpSERK and APOSTART differed in apomictic and sexual genotypes. Their putative role in cell-signaling transduction cascades and trafficking events required during sporogenesis, gametogenesis, and embryogenesis in plants is reported and discussed. We propose that, in nucellar cells of apomictic genotypes, PpSERK is the switch that channels embryo sac development and that it may also redirect signaling gene products to compartments other than their typical ones. The involvement of APOSTART in meiosis and programmed cell death is also discussed." |
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| Language: | English |
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| References: | 72 |
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| Note: | Pictures, b/w
Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Albertini, E., G. Marconi, L. Reale, G. Barcaccia, A. Porceddu, F. Ferranti, et al. 2005. SERK and APOSTART. Candidate genes for apomixis in Poa pratensis. Plant Physiol. 138(4):p. 2185-2199. |
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| DOI: 10.1104/pp.105.062059 |
| Web URL(s):
http://www.plantphysiol.org/content/138/4/2185.full
Last checked: 03/14/2012
Access conditions: Item is within a limited-access website
http://www.plantphysiol.org/content/138/4/2185.full.pdf+html
Last checked: 03/14/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2215281a |
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