Chromosome-level genome assembly provides new insights into Japanese chestnut (Castanea crenata) genomes
文献类型： 外文期刊
作者： Wang, Jiawei 1 ; Hong, Po 1 ; Qiao, Qian 1 ; Zhu, Dongzi 1 ; Zhang, Lisi 1 ; Lin, Ke 1 ; Sun, Shan 1 ; Jiang, Shuna 3 ; Shen, Bingxue 1 ; Zhang, Shizhong 3 ; Liu, Qingzhong 1 ;
作者机构： 1.Shandong Inst Pomol, Shandong Key Lab Fruit Biotechnol Breeding, Tai An, Shandong, Peoples R China
2.Taishan Univ, Dept Biol Sci & Technol, Tai An, Shandong, Peoples R China
3.Shandong Agr Univ, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China
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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