Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>

<i>Brassica napus</i> is a Cd hyperaccumulator, which is a serious threat to food and fodder safety. However, no related studies on developing Cd-safe <i>B. napus</i> have been reported yet. Here, we screened out a novel Cd uptake-related gene, <i>AtCUP1,</i> from...

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Main Authors: Junyu Yao, Jiuyuan Bai, Sha Liu, Jingyan Fu, Ying Zhang, Tianshun Luo, Hongpei Ren, Rui Wang, Yun Zhao
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/23/3888
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author Junyu Yao
Jiuyuan Bai
Sha Liu
Jingyan Fu
Ying Zhang
Tianshun Luo
Hongpei Ren
Rui Wang
Yun Zhao
author_facet Junyu Yao
Jiuyuan Bai
Sha Liu
Jingyan Fu
Ying Zhang
Tianshun Luo
Hongpei Ren
Rui Wang
Yun Zhao
author_sort Junyu Yao
collection DOAJ
description <i>Brassica napus</i> is a Cd hyperaccumulator, which is a serious threat to food and fodder safety. However, no related studies on developing Cd-safe <i>B. napus</i> have been reported yet. Here, we screened out a novel Cd uptake-related gene, <i>AtCUP1,</i> from the major facilitator superfamily in <i>Arabidopsis thaliana</i>. The mutation of <i>AtCUP1</i> decreased Cd accumulation, both in roots and shoots of <i>A. thaliana</i>. Furthermore, the disruption of the <i>AtCUP1</i> gene by the CRISPR/Cas9 system significantly reduced Cd accumulation in <i>A. thaliana</i>. Interestingly, the disruption of the <i>BnCUP1</i> gene, an orthologous gene of <i>AtCUP1</i>, by the CRISPR/Cas9 system also diminished Cd accumulation in both roots and shoots of <i>B. napus</i> based on the hydroponics assay. Furthermore, for the field experiment, the Cd accumulations of <i>BnCUP1</i>-edited lines were reduced by 52% in roots and 77% in shoots compared to that of wild-type (WT) lines, and the biomass and yield of <i>BnCUP1</i>-edited lines increased by 42% and 47% of that of WT, respectively. Noteworthily, agronomic characteristics of <i>B. napus</i> were not apparently affected by <i>BnCUP1</i>-editing. Thus, <i>BnCUP1</i>-edited lines are excellent non-transgenic germplasm resources for reducing Cd accumulation without a distinct compromise in yield, which could be applied to agricultural production in Cd-contaminated soils.
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spelling doaj.art-19c2d7c2c5e344959aab42fdf09ee48c2023-11-24T10:45:30ZengMDPI AGCells2073-44092022-12-011123388810.3390/cells11233888Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>Junyu Yao0Jiuyuan Bai1Sha Liu2Jingyan Fu3Ying Zhang4Tianshun Luo5Hongpei Ren6Rui Wang7Yun Zhao8Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, ChinaKey Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China<i>Brassica napus</i> is a Cd hyperaccumulator, which is a serious threat to food and fodder safety. However, no related studies on developing Cd-safe <i>B. napus</i> have been reported yet. Here, we screened out a novel Cd uptake-related gene, <i>AtCUP1,</i> from the major facilitator superfamily in <i>Arabidopsis thaliana</i>. The mutation of <i>AtCUP1</i> decreased Cd accumulation, both in roots and shoots of <i>A. thaliana</i>. Furthermore, the disruption of the <i>AtCUP1</i> gene by the CRISPR/Cas9 system significantly reduced Cd accumulation in <i>A. thaliana</i>. Interestingly, the disruption of the <i>BnCUP1</i> gene, an orthologous gene of <i>AtCUP1</i>, by the CRISPR/Cas9 system also diminished Cd accumulation in both roots and shoots of <i>B. napus</i> based on the hydroponics assay. Furthermore, for the field experiment, the Cd accumulations of <i>BnCUP1</i>-edited lines were reduced by 52% in roots and 77% in shoots compared to that of wild-type (WT) lines, and the biomass and yield of <i>BnCUP1</i>-edited lines increased by 42% and 47% of that of WT, respectively. Noteworthily, agronomic characteristics of <i>B. napus</i> were not apparently affected by <i>BnCUP1</i>-editing. Thus, <i>BnCUP1</i>-edited lines are excellent non-transgenic germplasm resources for reducing Cd accumulation without a distinct compromise in yield, which could be applied to agricultural production in Cd-contaminated soils.https://www.mdpi.com/2073-4409/11/23/3888Cd-safe cropsmajor facilitator superfamilyCRISPR/Cas9agronomic traits
spellingShingle Junyu Yao
Jiuyuan Bai
Sha Liu
Jingyan Fu
Ying Zhang
Tianshun Luo
Hongpei Ren
Rui Wang
Yun Zhao
Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
Cells
Cd-safe crops
major facilitator superfamily
CRISPR/Cas9
agronomic traits
title Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
title_full Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
title_fullStr Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
title_full_unstemmed Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
title_short Editing of a Novel Cd Uptake-Related Gene <i>CUP1</i> Contributes to Reducing Cd Accumulations in <i>Arabidopsis thaliana</i> and <i>Brassica napus</i>
title_sort editing of a novel cd uptake related gene i cup1 i contributes to reducing cd accumulations in i arabidopsis thaliana i and i brassica napus i
topic Cd-safe crops
major facilitator superfamily
CRISPR/Cas9
agronomic traits
url https://www.mdpi.com/2073-4409/11/23/3888
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