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A genome-wide association study identifies a transporter for zinc uploading to maize kernels.
Chao, Zhen-Fei; Chen, Yuan-Yuan; Ji, Chen; Wang, Ya-Ling; Huang, Xing; Zhang, Chu-Ying; Yang, Jun; Song, Tao; Wu, Jia-Chen; Guo, Liang-Xing; Liu, Chu-Bin; Han, Mei-Ling; Wu, Yong-Rui; Yan, Jianbing; Chao, Dai-Yin.
Affiliation
  • Chao ZF; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Chen YY; University of Chinese Academy of Sciences, Beijing, China.
  • Ji C; National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China.
  • Wang YL; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Huang X; University of Chinese Academy of Sciences, Beijing, China.
  • Zhang CY; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Yang J; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Song T; University of Chinese Academy of Sciences, Beijing, China.
  • Wu JC; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Guo LX; School of Life Science, Henan University, Kaifeng, China.
  • Liu CB; National Engineering Laboratory of Crop Stress Resistance, School of Life Science, Anhui Agricultural University, Hefei, China.
  • Han ML; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Wu YR; University of Chinese Academy of Sciences, Beijing, China.
  • Yan J; National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
  • Chao DY; University of Chinese Academy of Sciences, Beijing, China.
EMBO Rep ; 24(1): e55542, 2023 01 09.
Article in En | MEDLINE | ID: mdl-36394374
ABSTRACT
The Zn content in cereal seeds is an important trait for crop production as well as for human health. However, little is known about how Zn is loaded to plant seeds. Here, through a genome-wide association study (GWAS), we identify the Zn-NA (nicotianamine) transporter gene ZmYSL2 that is responsible for loading Zn to maize kernels. High promoter sequence variation in ZmYSL2 most likely drives the natural variation in Zn concentrations in maize kernels. ZmYSL2 is specifically localized on the plasma membrane facing the maternal tissue of the basal endosperm transfer cell layer (BETL) and functions in loading Zn-NA into the BETL. Overexpression of ZmYSL2 increases the Zn concentration in the kernels by 31.6%, which achieves the goal of Zn biofortification of maize. These findings resolve the mystery underlying the loading of Zn into plant seeds, providing an efficient strategy for breeding or engineering maize varieties with enriched Zn nutrition.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Zea mays / Genome-Wide Association Study Type of study: Prognostic_studies / Risk_factors_studies Limits: Humans Language: En Journal: EMBO Rep Journal subject: BIOLOGIA MOLECULAR Year: 2023 Type: Article Affiliation country: China
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Zea mays / Genome-Wide Association Study Type of study: Prognostic_studies / Risk_factors_studies Limits: Humans Language: En Journal: EMBO Rep Journal subject: BIOLOGIA MOLECULAR Year: 2023 Type: Article Affiliation country: China