Abstract
Arsenic (As) is a toxic heavy metal that can accumulate in crops and poses a threat to human health. The genetic mechanism of As accumulation is unclear. Herein, we used quantitative trait locus (QTL) mapping to unravel the genetic basis of As accumulation in a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22. The kernels had the lowest As content among the different maize tissues, followed by the axes, stems, bracts and leaves. Fourteen QTLs were identified at each location. Some of these QTLs were identified in different environments and were also detected by joint analysis. Compared with the B73 RefGen v2 reference genome, the distributions and effects of some QTLs were closely linked to those of QTLs detected in a previous study; the QTLs were likely in strong linkage disequilibrium. Our findings could be used to help maintain maize production to satisfy the demand for edible corn and to decrease the As content in As-contaminated soil through the selection and breeding of As pollution-safe cultivars.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Kernels had the lowest arsenic content among maize tissues, followed by axes, stems, bracts and leaves.
- Organ / stage
- kernelse1
- Outcome
- As contente1
- Direction
- loweste1
- Comparator
- axes, stems, bracts and leavese1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The kernels had the lowest As content among the different maize tissues, followed by the axes, stems, bracts and leaves”
Claim · model-written summary
Fourteen QTLs for arsenic accumulation were identified at each location in a maize recombinant inbred line population.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Fourteen QTLs were identified at each location”
e6“a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22”
Claim · model-written summary
Some QTLs for arsenic accumulation were identified in different environments and also detected by joint analysis.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Some of these QTLs were identified in different environments and were also detected by joint analysis”
e6“a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22”
Claim · model-written summary
The distributions and effects of some QTLs are closely linked to those of QTLs in a previous maize study.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the distributions and effects of some QTLs were closely linked to those of QTLs detected in a previous study”
e6“a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22”
Claim · model-written summary
Selecting and breeding pollution-safe maize cultivars is recommended to decrease As content in As-contaminated soil.
- Outcome
- As contente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22”
e5“to decrease the As content in As-contaminated soil through the selection and breeding of As pollution-safe cultivars”