Genomic analyses reveal the stepwise domestication and genetic mechanism of curd biogenesis in cauliflower

文献类型： 外文期刊

第一作者： Chen, Rui

作者： Chen, Rui;Yao, Xingwei;Zhang, Xiaoli;Yang, Yingxia;Lyu, Mingjie;Wang, Qian;Zhang, Guan;Wang, Mengmeng;Li, Yanhao;Duan, Lijin;Xie, Tianyu;Li, Haichao;Yang, Yuyao;Zhang, Hong;Guo, Yutong;Jia, Guiying;Sun, Deling;Chen, Ke;Su, Xiao;Lin, Tao;Chen, Ke;Li, Haichao;Yang, Yuyao;Zhang, Hong;Guo, Yutong;Jia, Guiying;Ge, Xianhong;Sarris, Panagiotis F.;Sarris, Panagiotis F.

作者机构：

期刊名称：NATURE GENETICS （ 影响因子：30.8； 五年影响因子：37.4 ）

ISSN： 1061-4036

年卷期： 2024 年 56 卷 5 期

页码：

收录情况： SCI

摘要： Cauliflower (Brassica oleracea L. var. botrytis) is a distinctive vegetable that supplies a nutrient-rich edible inflorescence meristem for the human diet. However, the genomic bases of its selective breeding have not been studied extensively. Herein, we present a high-quality reference genome assembly C-8 (V2) and a comprehensive genomic variation map consisting of 971 diverse accessions of cauliflower and its relatives. Genomic selection analysis and deep-mined divergences were used to explore a stepwise domestication process for cauliflower that initially evolved from broccoli (Curd-emergence and Curd-improvement), revealing that three MADS-box genes, CAULIFLOWER1 (CAL1), CAL2 and FRUITFULL (FUL2), could have essential roles during curd formation. Genome-wide association studies identified nine loci significantly associated with morphological and biological characters and demonstrated that a zinc-finger protein (BOB06G135460) positively regulates stem height in cauliflower. This study offers valuable genomic resources for better understanding the genetic bases of curd biogenesis and florescent development in crops. A high-quality reference genome assembly of cauliflower C-8 (V2) and genomic analyses of 971 diverse accessions and their relatives reveal the stepwise domestication and the genetic mechanism of curd biogenesis.

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