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Genetic dissection of QTLs for oil content in four maize DH populations
Oil is one of the main components in maize kernels. Increasing the total oil content (TOC) is favorable to optimize feeding requirement by improving maize quality. To better understand the genetic basis of TOC, quantitative trait loci (QTL) in four double haploid (DH) populations were explored. TOC...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10130369/ https://www.ncbi.nlm.nih.gov/pubmed/37123853 http://dx.doi.org/10.3389/fpls.2023.1174985 |
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author | Zhang, Xiaolei Wang, Min Guan, Haitao Wen, Hongtao Zhang, Changzheng Dai, Changjun Wang, Jing Pan, Bo Li, Jialei Liao, Hui |
author_facet | Zhang, Xiaolei Wang, Min Guan, Haitao Wen, Hongtao Zhang, Changzheng Dai, Changjun Wang, Jing Pan, Bo Li, Jialei Liao, Hui |
author_sort | Zhang, Xiaolei |
collection | PubMed |
description | Oil is one of the main components in maize kernels. Increasing the total oil content (TOC) is favorable to optimize feeding requirement by improving maize quality. To better understand the genetic basis of TOC, quantitative trait loci (QTL) in four double haploid (DH) populations were explored. TOC exhibited continuously and approximately normal distribution in the four populations. The moderate to high broad-sense heritability (67.00-86.60%) indicated that the majority of TOC variations are controlled by genetic factors. A total of 16 QTLs were identified across all chromosomes in a range of 3.49-30.84% in term of phenotypic variation explained. Among them, six QTLs were identified as the major QTLs that explained phenotypic variation larger than 10%. Especially, qOC-1-3 and qOC-2-3 on chromosome 9 were recognized as the largest effect QTLs with 30.84% and 21.74% of phenotypic variance, respectively. Seventeen well-known genes involved in fatty acid metabolic pathway located within QTL intervals. These QTLs will enhance our understanding of the genetic basis of TOC in maize and offer prospective routes to clone candidate genes regulating TOC for breeding program to cultivate maize varieties with the better grain quality. |
format | Online Article Text |
id | pubmed-10130369 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-101303692023-04-27 Genetic dissection of QTLs for oil content in four maize DH populations Zhang, Xiaolei Wang, Min Guan, Haitao Wen, Hongtao Zhang, Changzheng Dai, Changjun Wang, Jing Pan, Bo Li, Jialei Liao, Hui Front Plant Sci Plant Science Oil is one of the main components in maize kernels. Increasing the total oil content (TOC) is favorable to optimize feeding requirement by improving maize quality. To better understand the genetic basis of TOC, quantitative trait loci (QTL) in four double haploid (DH) populations were explored. TOC exhibited continuously and approximately normal distribution in the four populations. The moderate to high broad-sense heritability (67.00-86.60%) indicated that the majority of TOC variations are controlled by genetic factors. A total of 16 QTLs were identified across all chromosomes in a range of 3.49-30.84% in term of phenotypic variation explained. Among them, six QTLs were identified as the major QTLs that explained phenotypic variation larger than 10%. Especially, qOC-1-3 and qOC-2-3 on chromosome 9 were recognized as the largest effect QTLs with 30.84% and 21.74% of phenotypic variance, respectively. Seventeen well-known genes involved in fatty acid metabolic pathway located within QTL intervals. These QTLs will enhance our understanding of the genetic basis of TOC in maize and offer prospective routes to clone candidate genes regulating TOC for breeding program to cultivate maize varieties with the better grain quality. Frontiers Media S.A. 2023-04-12 /pmc/articles/PMC10130369/ /pubmed/37123853 http://dx.doi.org/10.3389/fpls.2023.1174985 Text en Copyright © 2023 Zhang, Wang, Guan, Wen, Zhang, Dai, Wang, Pan, Li and Liao https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Zhang, Xiaolei Wang, Min Guan, Haitao Wen, Hongtao Zhang, Changzheng Dai, Changjun Wang, Jing Pan, Bo Li, Jialei Liao, Hui Genetic dissection of QTLs for oil content in four maize DH populations |
title | Genetic dissection of QTLs for oil content in four maize DH populations |
title_full | Genetic dissection of QTLs for oil content in four maize DH populations |
title_fullStr | Genetic dissection of QTLs for oil content in four maize DH populations |
title_full_unstemmed | Genetic dissection of QTLs for oil content in four maize DH populations |
title_short | Genetic dissection of QTLs for oil content in four maize DH populations |
title_sort | genetic dissection of qtls for oil content in four maize dh populations |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10130369/ https://www.ncbi.nlm.nih.gov/pubmed/37123853 http://dx.doi.org/10.3389/fpls.2023.1174985 |
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