Wang Ruizhen, Quan Jian, Liu Boyang, Wei Yu, Liu Hengxing, He Ran, Guo Ling, Dong Leiming
Key Laboratory of National Forestry and Grassland Administration on Plant Ex situ Conservation, Beijing Floriculture Engineering Technology Research Centre, Beijing Botanical Garden, Beijing, 100093, China.
Sci Data. 2025 Feb 5;12(1):211. doi: 10.1038/s41597-024-04221-z.
Malus niedzwetzkyana (MN) is the mother of Rosybloom hybrids, ornamental crabapples with red and purple flowers. We present a high-quality chromosome-scale genome for MN with a size of 672.64 Mb, anchored to 17 chromosomes and with a high BUSCO completeness score of 98.6%, reaching the 'gold standard' level. Moreover, our assembly has captured 28 telomeres. A total of 43,813 protein-coding genes was annotated in the MN genome. The assembled high quality provides a valuable opportunity to enhance our understanding of the genetic basis of flower colour and other ornamental traits in crabapples, thereby advancing the field of genetics and breeding.
红肉苹果（MN）是玫瑰红杂交品种的母本，玫瑰红杂交品种是具有红色和紫色花朵的观赏海棠。我们展示了一个高质量的红肉苹果染色体级基因组，大小为672.64 Mb，锚定在17条染色体上，BUSCO完整性得分高达98.6%，达到了“黄金标准”水平。此外，我们的组装捕获了28个端粒。红肉苹果基因组中共注释了43,813个蛋白质编码基因。高质量的组装为增进我们对海棠花色和其他观赏性状遗传基础的理解提供了宝贵机会，从而推动遗传学和育种领域的发展。
