To bloom once or more times: the reblooming mechanisms of Iris germanica revealed by transcriptome profiling.

ABSTRACT:

Background

The reblooming bearded iris (Iris germanica) can bloom twice a year, in spring and autumn. The extended ornamental period makes it more popular and brings additional commercial values. However, little is known about the reblooming mechanisms, making the breeding programs time-consuming and labor-wasting. Therefore, a comparative transcriptome profiling was conducted on once-bloomers and rebloomers from the same F₁ generation on six development stages, and the candidate genes associated with reblooming were identified.

Results

A total of 100,391 unigenes were generated, the mean length being 785 bp. In the three comparisons (the floral initiation stage of spring flowering in once-bloomers (OB-T1) vs the floral initiation stage of spring flowering in rebl

SUBMITTER: Fan Z 

PROVIDER: S-EPMC7430825 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature