Chromosome-level genome assembly provides new insights into Japanese chestnut (Castanea crenata) genomes

文献类型： 外文期刊

第一作者： Wang, Jiawei

作者： Wang, Jiawei;Hong, Po;Qiao, Qian;Zhu, Dongzi;Zhang, Lisi;Lin, Ke;Sun, Shan;Shen, Bingxue;Liu, Qingzhong;Lin, Ke;Jiang, Shuna;Shen, Bingxue;Zhang, Shizhong

作者机构：

关键词： japanese chestnut; nanopore; Hi-C; genome sequencing; evolution

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Japanese chestnut (Castanea crenata Sieb. et Zucc) is an economically and ecologically important chestnut species in East Asia. Here, we presented a high-quality chromosome-level reference genome of the Japanese chestnut cultivar Tsukuba' by combining Nanopore long reads and Hi-C sequencing. The final assembly has a size of 718.30 Mb and consists of 12 pseudochromosomes ranging from 41.03 to 92.03 Mb, with a BUSCO complete gene percentage of 97.6%. A total of 421.37 Mb repetitive sequences and 46,744 gene models encoding 46,463 proteins were predicted in the genome. Genome evolution analysis showed that Japanese chestnut is closely related to Chinese chestnut and these species shared a common ancestor -6.5 million years ago. This high-quality Japanese chestnut genome represents an important resource for the chestnut genomics community and will improve our understanding of chestnut biology and evolution.

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