Gene mining and genomics-assisted breeding empowered by the pangenome of tea plant Camellia sinensis
文献类型： 外文期刊
作者： Chen, Shuai 1 ; Wang, Pengjie 1 ; Kong, Weilong 1 ; Chai, Kun 2 ; Zhang, Shengcheng 1 ; Yu, Jiaxin 1 ; Wang, Yibin 1 ; Jiang, Mengwei 2 ; Lei, Wenlong 2 ; Chen, Xiao 1 ; Wang, Wenling 2 ; Gao, Yingying 1 ; Qu, Shenyang 1 ; Wang, Fang 1 ; Wang, Yinghao 2 ; Zhang, Qing 1 ; Gu, Mengya 3 ; Fang, Kaixing 4 ; Ma, Chunlei 5 ; Sun, Weijiang 3 ; Ye, Naixing 3 ; Wu, Hualing 4 ; Zhang, Xingtan 1 ;
作者机构： 1.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Genome Anal Lab, Natl Key Lab Trop Crop Breeding,Shenzhen Branch,Gu, Shenzhen, Peoples R China
2.Fujian Agr & Forestry Univ, Ctr Genom & Biotechnol, Fujian Prov Key Lab Haixia Appl Plant Syst Biol, Key Lab Genet, Fuzhou, Peoples R China
3.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou, Peoples R China
4.Guangdong Acad Agr Sci, Tea Res Inst, Guangdong Prov Key Lab Tea Plant Resources Innovat, Guangzhou, Peoples R China
5.Minist Agr & Rural Affairs, Chinese Acad Agr Sci, Key Lab Biol Genet & Breeding Special Econ Anim &, Tea Res Inst, Hangzhou, Peoples R China
期刊名称：NATURE PLANTS （ 影响因子：18.0； 五年影响因子：18.6 ）
ISSN： 2055-026X
年卷期： 2023 年 9 卷 12 期
页码：
收录情况： SCI
摘要： Tea is one of the world's oldest crops and is cultivated to produce beverages with various flavours. Despite advances in sequencing technologies, the genetic mechanisms underlying key agronomic traits of tea remain unclear. In this study, we present a high-quality pangenome of 22 elite cultivars, representing broad genetic diversity in the species. Our analysis reveals that a recent long terminal repeat burst contributed nearly 20% of gene copies, introducing functional genetic variants that affect phenotypes such as leaf colour. Our graphical pangenome improves the efficiency of genome-wide association studies and allows the identification of key genes controlling bud flush timing. We also identified strong correlations between allelic variants and flavour-related chemistries. These findings deepen our understanding of the genetic basis of tea quality and provide valuable genomic resources to facilitate its genomics-assisted breeding.
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