High-quality rape genome map released.

Recently, Nature-Plants published a high-quality reference genome of eight kale rape varieties (materials) online. On this basis, the rape team and the bio-information team of the National Key Laboratory for Crop Genetic Improvement of Huahua Agricultural University analyzed the genetic and molecular basis of rape ecological differentiation. This study provides an important resource for further analyzing the genomic structure of kale-type rape and accelerating the improvement of rape varieties, and is of great significance to the gene positioning and cloning of important agro-sexualities.
is the world's third largest oil crop, providing 13-16% of the world's edible vegetable oil. About 7,500 years ago, cabbage and kale were naturally mixed in the Mediterranean. After its introduction to China, Australia and North America in the 20th century, kale rape under natural and artificial selection underwent adaptive changes and gradually formed three different ecological types (winter rape, semi-winter rape and spring rape).
is an isogenous four-fold crop with a complex genome, and the quality and representation of the published rape reference genome is not sufficient to meet the needs of rape functional genomics research and genetic modification. Therefore, the study assembled and annotated the genomes of eight representative kale rapes by integrating data. Of these, the ZS11 Contig N50 exceeds 3.1 Mb and is currently the most complete rape reference genome.
to make it easier for researchers to use multiple genomes, the study was the first to build gene Index, an in-rape in-plant index, using a collinear, direct-to-isogen-based link. By comparing genomics methods, a comprehensive variation of eight genomes was mapped, which had a significant effect on at least 9.4% of the encoded genes in rape. The pan-genome and core genomic architecture of rape provide new and important resources for functional gene research and genetic breeding.
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