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Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population
To investigate the genetic mechanism of mercury accumulation in maize (Zea mays L.), a population of 194 recombinant inbred lines derived from an elite hybrid Yuyu 22, was used to identify quantitative trait loci (QTLs) for mercury accumulation at two locations. The results showed that the average H...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4161392/ https://www.ncbi.nlm.nih.gov/pubmed/25210737 http://dx.doi.org/10.1371/journal.pone.0107243 |
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author | Fu, Zhongjun Li, Weihua Zhang, Qinbin Wang, Long Zhang, Xiaoxiang Song, Guiliang Fu, Zhiyuan Ding, Dong Liu, Zonghua Tang, Jihua |
author_facet | Fu, Zhongjun Li, Weihua Zhang, Qinbin Wang, Long Zhang, Xiaoxiang Song, Guiliang Fu, Zhiyuan Ding, Dong Liu, Zonghua Tang, Jihua |
author_sort | Fu, Zhongjun |
collection | PubMed |
description | To investigate the genetic mechanism of mercury accumulation in maize (Zea mays L.), a population of 194 recombinant inbred lines derived from an elite hybrid Yuyu 22, was used to identify quantitative trait loci (QTLs) for mercury accumulation at two locations. The results showed that the average Hg concentration in the different tissues of maize followed the order: leaves > bracts > stems > axis > kernels. Twenty-three QTLs for mercury accumulation in five tissues were detected on chromosomes 1, 4, 7, 8, 9 and 10, which explained 6.44% to 26.60% of the phenotype variance. The QTLs included five QTLs for Hg concentration in kernels, three QTLs for Hg concentration in the axis, six QTLs for Hg concentration in stems, four QTLs for Hg concentration in bracts and five QTLs for Hg concentration in leaves. Interestingly, three QTLs, qKHC9a, qKHC9b, and qBHC9 were in linkage with two QTLs for drought tolerance. In addition, qLHC1 was in linkage with two QTLs for arsenic accumulation. The study demonstrated the concentration of Hg in Hg-contaminated paddy soil could be reduced, and maize production maintained simultaneously by selecting and breeding maize Hg pollution-safe cultivars (PSCs). |
format | Online Article Text |
id | pubmed-4161392 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-41613922014-09-17 Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population Fu, Zhongjun Li, Weihua Zhang, Qinbin Wang, Long Zhang, Xiaoxiang Song, Guiliang Fu, Zhiyuan Ding, Dong Liu, Zonghua Tang, Jihua PLoS One Research Article To investigate the genetic mechanism of mercury accumulation in maize (Zea mays L.), a population of 194 recombinant inbred lines derived from an elite hybrid Yuyu 22, was used to identify quantitative trait loci (QTLs) for mercury accumulation at two locations. The results showed that the average Hg concentration in the different tissues of maize followed the order: leaves > bracts > stems > axis > kernels. Twenty-three QTLs for mercury accumulation in five tissues were detected on chromosomes 1, 4, 7, 8, 9 and 10, which explained 6.44% to 26.60% of the phenotype variance. The QTLs included five QTLs for Hg concentration in kernels, three QTLs for Hg concentration in the axis, six QTLs for Hg concentration in stems, four QTLs for Hg concentration in bracts and five QTLs for Hg concentration in leaves. Interestingly, three QTLs, qKHC9a, qKHC9b, and qBHC9 were in linkage with two QTLs for drought tolerance. In addition, qLHC1 was in linkage with two QTLs for arsenic accumulation. The study demonstrated the concentration of Hg in Hg-contaminated paddy soil could be reduced, and maize production maintained simultaneously by selecting and breeding maize Hg pollution-safe cultivars (PSCs). Public Library of Science 2014-09-11 /pmc/articles/PMC4161392/ /pubmed/25210737 http://dx.doi.org/10.1371/journal.pone.0107243 Text en © 2014 Fu et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Fu, Zhongjun Li, Weihua Zhang, Qinbin Wang, Long Zhang, Xiaoxiang Song, Guiliang Fu, Zhiyuan Ding, Dong Liu, Zonghua Tang, Jihua Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title | Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title_full | Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title_fullStr | Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title_full_unstemmed | Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title_short | Quantitative Trait Loci for Mercury Accumulation in Maize (Zea mays L.) Identified Using a RIL Population |
title_sort | quantitative trait loci for mercury accumulation in maize (zea mays l.) identified using a ril population |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4161392/ https://www.ncbi.nlm.nih.gov/pubmed/25210737 http://dx.doi.org/10.1371/journal.pone.0107243 |
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