| Autor: |
Ernst, Antonia M., Rüping, Boris, Jekat, Stephan B., Nordzieke, Steffen, Reineke, Anna R., Müller, Boje, Bornberg-Bauer, Erich, Prüfer, Dirk, Noll, Gundula A. |
| Zdroj: |
Plant Signaling & Behavior; January 2011, Vol. 6 Issue: 1 p151-153, 3p |
| Abstrakt: |
Sieve element occlusion(SEO) genes encoding forisome subunits have been identified in Medicago truncatulaand other legumes. Forisomes are structural phloem proteins uniquely found in Fabaceaesieve elements. They undergo a reversible conformational change after wounding, from a condensed to a dispersed state, thereby blocking sieve tube translocation and preventing the loss of photoassimilates. Recently, we identified SEOgenes in several non-Fabaceaeplants (lacking forisomes) and concluded that they most probably encode conventional non-forisome P-proteins. Molecular and phylogenetic analysis of the SEOgene family has identified domains that are characteristic for SEO proteins. Here, we extended our phylogenetic analysis by including additional SEOgenes from several diverse species based on recently published genomic data. Our results strengthen the original assumption that SEOgenes seem to be widespread in dicotyledonous angiosperms, and further underline the divergent evolution of SEOgenes within the Fabaceae. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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