Characterization of expressed sequence tags from Lilium longiflorum in vernalized and non-vernalized bulbs

Copyright © 2014 Elsevier GmbH. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 173(2015) vom: 15. Jan., Seite 72-81
1. Verfasser: Lugassi-Ben Hamo, Maya (VerfasserIn)
Weitere Verfasser: Martin, Carlos Villacorta, Zaccai, Michele
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article ESTs Flowering Lilium longiflorum Meristem Subtraction libraries Vernalization DNA, Complementary Plant Proteins
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520 |a In Lilium longiflorum, vernalization is both an obligatory requirement and the major factor affecting flowering time, however, little is known about the molecular regulation of this mechanism in Lilium and other flowering bulbs. Exposure of L. longiflorum bulbs to 9 weeks at 4°C greatly promoted stem elongation within the bulb, floral transition and flowering. Subtraction libraries of vernalized (V) and non-vernalized (NV) bulb meristems were constructed. 671 and 479 genes were sequenced, from which 72 and 82 proteins were inferred for the NV-V and the V-NV libraries, respectively. Much lower transcription levels and putative gene functions were recorded in the NV-V libraries compared the V-NV libraries. However, a large number of genes annotated to transposable elements (TEs), represented more than 20% of the sequenced cDNA were expressed in the NV-V libraries, as opposed to less than 2% in the V-NV libraries. The expression profile of several genes potentially involved in the vernalization pathway was assessed. Expression of LlSOC1, the lily homologue of SUPPRESSOR OF OVER-EXPRESSION OF CO1 (SOC1), an important flowering gene in several plant species, found in the V-NV library, was highly up-regulated during bulb meristem cold exposure. The subtraction libraries provided a fast tool for relevant gene isolation 
650 4 |a Journal Article 
650 4 |a ESTs 
650 4 |a Flowering 
650 4 |a Lilium longiflorum 
650 4 |a Meristem 
650 4 |a Subtraction libraries 
650 4 |a Vernalization 
650 7 |a DNA, Complementary  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
700 1 |a Martin, Carlos Villacorta  |e verfasserin  |4 aut 
700 1 |a Zaccai, Michele  |e verfasserin  |4 aut 
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