Whole transcriptome profiling of the vernalization process in Lilium longiflorum (cultivar White Heaven) bulbs.

ABSTRACT:

Background

Vernalization is an obligatory requirement of extended exposure to low temperatures to induce flowering in certain plants. It is the most important factor affecting flowering time and quality in Easter lily (Lilium longiflorum). Exposing the bulbs to 4 °C gradually decreases flowering time up to 50% compared to non-vernalized plants. We aim to understand the molecular regulation of vernalization in Easter lily, for which we characterized the global expression in lily bulb meristems after 0, 2, 5, 7 and 9 weeks of incubation at 4 °C.

Results

We assembled de-novo a transcriptome which, after filtering, yielded 121,572 transcripts and 42,430 genes which hold 15,414 annotated genes, with up to 3,657 GO terms. This extensive annotation was mapped to the more general GO

SUBMITTER: Villacorta-Martin C 

PROVIDER: S-EPMC4515921 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature