z-logo
open-access-imgOpen Access
Genomic analyses of diverse wild and cultivated accessions provide insights into the evolutionary history of jujube
Author(s) -
Guo Mingxin,
Zhang Zhongren,
Li Shipeng,
Lian Qun,
Fu Pengcheng,
He Yali,
Qiao Jinxin,
Xu Keke,
Liu Linpei,
Wu Miaoyan,
Du Zheran,
Li Sunan,
Wang Junjie,
Shao Peiyin,
Yu Qiang,
Xu Gan,
Li Dengke,
Wang Yongkang,
Tian Shan,
Zhao Jing,
Feng Xue,
Li Ruiqiang,
Jiang Wenkai,
Zhao Xusheng
Publication year - 2021
Publication title -
plant biotechnology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.525
H-Index - 115
eISSN - 1467-7652
pISSN - 1467-7644
DOI - 10.1111/pbi.13480
Subject(s) - biology , ziziphus jujuba , domestication , ziziphus , rhamnaceae , population , genetic diversity , botany , genetics , demography , sociology
Summary The Chinese jujube ( Ziziphus jujuba Mill.), a member of the Rhamnaceae family, is an important perennial fruit tree crop of substantial economic, ecological and nutritional value, and is also used as a traditional herbal medicine. Here, we report the resequencing of 493 jujube accessions, including 202 wild and 291 cultivated accessions at >16× depth. Our population genomic analyses revealed that the Shanxi–Shaanxi area of China was jujube's primary domestication centre and that jujube was then disseminated into East China before finally extending into South China. Divergence events analysis indicated that Ziziphus acidojujuba and Ziziphus jujuba diverged around 2.7 Mya, suggesting the interesting possibility that a long pre‐domestication period may have occurred prior to human intervention. Using the large genetic polymorphism data set, we identified a 15‐bp tandem insertion in the promoter of the jujube ortholog of the POLLEN DEFECTIVE IN GUIDANCE 1 ( POD1 ) gene, which was strongly associated with seed‐setting rate. Integrating genome‐wide association study (GWAS), transcriptome data, expression analysis and transgenic validation in tomato, we identified a DA3 / UBIQUITIN‐SPECIFIC PROTEASE 14 ( UBP14 ) ortholog, which negatively regulate fruit weight in jujube. We also identified candidate genes, which have likely influenced the selection of fruit sweetness and crispness texture traits among fresh and dry jujubes. Our study not only illuminates the genetic basis of jujube evolution and domestication and provides a deep and rich genomic resource to facilitate both crop improvement and hypothesis‐driven basic research, but also identifies multiple agriculturally important genes for this unique perennial tree fruit species.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here