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High-quality genome assembly and high-density genetic map of asparagus bean

By Qiuju Xia, Ru Zhang, Xuemei Ni, Lei Pan, Yangzi Wang, Xiao Dong, Yun Gao, Zhe Zhang, Ling Kui, Holger Froehlich, Wen Wang, Huanming Yang, Chanyou Chen, Jianhua Miao, Wei Chen, Yang Dong

Posted 16 Jan 2019
bioRxiv DOI: 10.1101/521179

Asparagus bean (Vigna. unguiculata ssp. sesquipedialis), known for its very long and tender green pods, is an important vegetable crop broadly grown in the developing countries. Despite its agricultural and economic values, asparagus bean does not have a high-quality genome assembly for breeding novel agronomic traits. In this study, we reported a high-quality 632.8 Mb assembly of asparagus bean based on the whole genome shotgun sequencing strategy. We also generated a high-density linkage map for asparagus bean, which helped anchor 94.42% of the scaffolds into 11 pseudo-chromosomes. A total of 42,609 protein-coding genes and 3,579 non-protein-coding genes were predicted from the assembly. Taken together, these genomic resources of asparagus bean will facilitate the investigation of economically valuable traits in a variety of legume species, so that the cultivation of these plants would help combat the protein and energy malnutrition in the developing world.

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