De novo transcriptomes of floral bracts for 22 Bougainvillea accessions

Bougainvillea glabra is an ornamental tree or shrub with nearly 200 years of application in gardening and landscapes globally. Recently, the growing research interest in the applications of B. glabra extracts, such as medicinal applications, and synthetic materials for nutraceuticals, has led to the development of new techniques to be utilized for studying B. glabra. Moreover, the formations of polymorphic coloration and the mechanism of metamorphic bracts in B. glabra cultivars are worthy of study. However, the multi-omics information for B. glabra cultivars is lacking which hinders the progress of gene-level research and genetic applications. We sequenced the bracts transcriptomes of 22 B. glabra accessions and generated more than 80 Gb clean data. After de novo assembly and optimization, 174,758 unigenes (E90N50 = 2,473 bp) and annotation data were obtained. In addition, a total of 100,115 CDSs were detected. On average, each variety has 69,990 unigenes containing SNPs, among which 35,682 were annotated per variety. These transcriptome data are valuable for gene mining and expression experiments or other scientific areas.