文献类型: 外文期刊
作者: Tang, Wei;Ma, Meng;Song, Weihan;Kou, Meng;Wang, Xin;Yan, Hui;Li, Chen;Zhang, Aicen;Gao, Tianqi;Gao, Runfei;Zhang, Yungang;Li, Qiang
作者机构:
关键词: CRISPR/Cas9;Sweetpotato;Gene editing;Phytoene desaturase;Hi-TOM
期刊名称: PLANT SCIENCE
ISSN: 0168-9452
年卷期: 2025 年 364 卷
页码:
收录情况: SCIE(2025版)
摘要: CRISPR/Cas9-mediated gene editing has emerged as a pivotal tool for functional genomics and crop improvement. For the first time, we applied CRISPR/Cas9-mediated editing to the IbPDS gene in the purple-fleshed cultivar 'XZS-8', achieving mutation efficiencies up to 98.18 %. Loss-of-function mutations in IbPDS induced visually discernible albino phenotypes. Hi-TOM sequencing confirmed deletion mutations within the target locus, with editing efficiencies ranging from 17.77 % to 65.90 % (gRNA1) and 87.87-98.18 % (gRNA2). Knockout lines showed significant reductions in chlorophyll a and b content, confirming functional disruption of IbPDS. Collectively, our results demonstrate efficient CRISPR/Cas9-mediated genome editing for generating mutants in the hexaploid sweetpotato.
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