Journal
GIGASCIENCE
Volume 8, Issue 9, Pages -Publisher
OXFORD UNIV PRESS
DOI: 10.1093/gigascience/giz112
Keywords
Castanea mollissima; genome assembly; annotation; evolution
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Funding
- National Key Research & Development Program of China [2018YFD1000605]
- National Natural Science Foundation of China [31870671, 31672135]
- Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing Municipality [IDHT20180509]
- Supporting Plan for Cultivating High Level Teachers in Colleges and Universities in Beijing [CITTCD20180317]
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Background: 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. Findings: We produced a high-quality assembly of the C. mollissima genome using Pacific Biosciences single-molecule sequencing. The final draft genome is similar to 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, similar to 13.62 million years ago. Conclusions: 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.
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