Title：
Chromosome-level genome assembly of Siberian kale (Brassica napus subsp. pabularia)
Authors：
13:553
Corresponding
Author：
Xi Shan, Minghao Qu, Wei Zhang, Shenyun Wang, Fangwei Yu, Meng Ni, Lei Gao*, Xiaolin Yu*, Jianbin Li*
Pubyear：
2026
Title of
Journal：
Scientific Data
Paper
Code：
Volume：
13
Number：
Page：
553
Others：
Classification：
Source：
Abstract：
Siberian kale (Brassica napus subsp. pabularia, AACC, 2n = 38) is a distinct subspecies of B. napus, characterized by its deeply lobed leaves and primarily cultivated as a nutritious leafy vegetable. Here, we present a chromosome-level genome of Beta, a Siberian kale variety, integrating Illumina short reads, PacBio HiFi long reads, and Hi-C data. The final assembly size is 1,078.8 Mb, with a scaffold N50 of 57.5 Mb and a genome BUSCO completeness of 99.7%. 954.0 Mb (88.4%) of sequences were successfully anchored to 19 pseudo-chromosomes. The configuration of Beta genome chromosomes is consistent with the distribution of ten A subgenome and nine C subgenome chromosomes in rapeseed. In total, 98,882 protein-coding genes were predicted ab initio in the Beta genome, with an average gene length of 1,997 bp, and 90,415 (91.44%) genes were functionally annotated. Overall, the high-quality genome provides a valuable resource for bridging current knowledge gaps and offers key genetic insights into deeply lobed leaf formation and improvement of Brassica crops.
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