April 21, 2020  |  

Hybrid de novo genome assembly of Chinese chestnut (Castanea mollissima).

Authors: Xing, Yu and Liu, Yang and Zhang, Qing and Nie, Xinghua and Sun, Yamin and Zhang, Zhiyong and Li, Huchen and Fang, Kefeng and Wang, Guangpeng and Huang, Hongwen and Bisseling, Ton and Cao, Qingqin and Qin, Ling

The Chinese chestnut (Castanea mollissima) is widely cultivated in China for nut production. This plant also plays an important ecological role in afforestation and ecosystem services. To facilitate and expand the use of C. mollissima for breeding and its genetic improvement, we report here the whole-genome sequence of C. mollissima.We produced a high-quality assembly of the C. mollissima genome using Pacific Biosciences single-molecule sequencing. The final draft genome is ~785.53 Mb long, with a contig N50 size of 944 kb, and we further annotated 36,479 protein-coding genes in the genome. Phylogenetic analysis showed that C. mollissima diverged from Quercus robur, a member of the Fagaceae family, ~13.62 million years ago.The high-quality whole-genome assembly of C. mollissima will be a valuable resource for further genetic improvement and breeding for disease resistance and nut quality. © The Author(s) 2019. Published by Oxford University Press.

Journal: GigaScience
DOI: 10.1093/gigascience/giz112
Year: 2019

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