Identification of Key Genes Controlling Sugar and Organic Acid Accumulation in Wampee Fruit (Clausena lansium) via Genome Assembly and Genome-wide Association Analysis
文献类型： 外文期刊
作者： Chen, Huiqiong 1 ; Wang, Jingxuan 4 ; Wang, Xiangfeng 4 ; Peng, Cheng 1 ; Chang, Xiaoxiao 1 ; Chen, Zhe 1 ; Yang, Bowen 4 ; Wang, Xinrui 4 ; Qiu, Jishui 1 ; Guo, Li 4 ; Lu, Yusheng 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangzhou 510640, Peoples R China
3.Guangdong Prov Key Lab Sci & Technol Res Fruit Tre, Guangzhou 510640, Peoples R China
4.Peking Univ, Inst Adv Agr Sci, Shandong Prov Key Lab Precis Mol Crop Design & Bre, Shandong Lab Adv Agr Sci Weifang, Weifang 261325, Shandong, Peoples R China
关键词： wampee; Clausena lansium; Rutaceae; genome-wide association study; SWEET
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 41 期
页码：
收录情况： SCI
摘要： Wampee (Clausena lansium) is an economically significant subtropical fruit tree widely cultivated in Southern China. To provide high-quality genomic resources for C. lansium, we report a chromosome-level genome sequence for the "JinFeng" cultivar. The 297.1 Mb C. lansium genome contained nine chromosomes with a scaffold N50 of 29.2 Mb and encoded 23,468 protein-coding genes. Selective sweep analysis between sweet and sour C. lansium varieties and genome-wide association analysis identified 14 candidate genes putatively involved in sugar and acid accumulation. ClERF061, encoding an ethylene response factor, and ClSWEET7, encoding a Sugars Will Eventually be Exported Transporters (SWEET) family protein, were proposed as key regulators of the sweet and sour tastes of the wampee fruit. ClERF061 and ClSWEET7 overexpression in tomatoes increased the total sugar and acid content in fruits. ClSWEET7 promoter activation by ClERF061 was confirmed via Nicotiana benthamiana transient expression. Our study provides valuable genomic resources for C. lansium genetics and breeding.
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