Ecological functions and differentially expressed transcripts of translucent bracts in an alpine 'glasshouse' plant Rheum nobile (Polygonaceae).

Abstract excerpt

The molecular basis of many physiological and/or phenotypic adaptations of alpine plants remains largely unknown. The upper leaves of what are termed "glasshouse plants" have been transformed into translucent bracts that cover their inflorescences. This change in appearance is believed to allow such plants to maintain normal sexual reproduction under very cold conditions. Thus, it is hypothesized that the foliar...

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