Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk
The vascular bundle plays an important role in nutrient transportation in plants and exerts great influence on crop yield. Maize is widely used for food, feed, and fuel, producing the largest yield in the world. However, genes and molecular mechanism controlling vascular bundle-related traits in mai...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-07-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.699486/full |
| _version_ | 1818600781107953664 |
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| author | Yunxiao Zheng Peng Hou Liying Zhu Weibin Song Han Liu Han Liu Yaqun Huang Hong Wang Jinjie Guo |
| author_facet | Yunxiao Zheng Peng Hou Liying Zhu Weibin Song Han Liu Han Liu Yaqun Huang Hong Wang Jinjie Guo |
| author_sort | Yunxiao Zheng |
| collection | DOAJ |
| description | The vascular bundle plays an important role in nutrient transportation in plants and exerts great influence on crop yield. Maize is widely used for food, feed, and fuel, producing the largest yield in the world. However, genes and molecular mechanism controlling vascular bundle-related traits in maize have largely remained undiscovered. In this study, a natural population containing 248 diverse maize inbred lines genotyped with high-throughput SNP markers was used for genome-wide association study. The results showed that broad variations existed for the vascular bundle-related traits which are subject to genetic structure and it was suitable for association analysis. In this study, we identified 15, 13, 2, 1, and 5 SNPs significantly associated with number of small vascular bundle, number of large vascular bundle, average area of single small vascular bundle, average area of single large vascular bundle, and cross-sectional area, respectively. The 210 candidate genes in the confidence interval can be classified into ten biological processes, three cellular components, and eight molecular functions. As for the Kyoto Encyclopedia of Genes and Genomes analysis of the candidate genes, a total of six pathways were identified. Finally, we found five genes related to vascular development, three genes related to cell wall, and two genes related to the mechanical strength of the stalk. Our results provide the further understanding of the genetic foundation of vascular bundle-related traits in maize stalk. |
| first_indexed | 2024-12-16T12:40:56Z |
| format | Article |
| id | doaj.art-2b3431e32e244ca2a47a580c7767a85d |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-16T12:40:56Z |
| publishDate | 2021-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-2b3431e32e244ca2a47a580c7767a85d2022-12-21T22:31:25ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-07-011210.3389/fpls.2021.699486699486Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize StalkYunxiao Zheng0Peng Hou1Liying Zhu2Weibin Song3Han Liu4Han Liu5Yaqun Huang6Hong Wang7Jinjie Guo8State Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, ChinaKey Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, ChinaState Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, ChinaState Key Laboratory of Agrobiotechnology, National Maize Improvement Center, Department of Plant Genetics and Breeding, China Agricultural University, Beijing, ChinaState Key Laboratory of Agrobiotechnology, National Maize Improvement Center, Department of Plant Genetics and Breeding, China Agricultural University, Beijing, ChinaInstitute of Botany, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, ChinaState Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, ChinaState Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding, ChinaThe vascular bundle plays an important role in nutrient transportation in plants and exerts great influence on crop yield. Maize is widely used for food, feed, and fuel, producing the largest yield in the world. However, genes and molecular mechanism controlling vascular bundle-related traits in maize have largely remained undiscovered. In this study, a natural population containing 248 diverse maize inbred lines genotyped with high-throughput SNP markers was used for genome-wide association study. The results showed that broad variations existed for the vascular bundle-related traits which are subject to genetic structure and it was suitable for association analysis. In this study, we identified 15, 13, 2, 1, and 5 SNPs significantly associated with number of small vascular bundle, number of large vascular bundle, average area of single small vascular bundle, average area of single large vascular bundle, and cross-sectional area, respectively. The 210 candidate genes in the confidence interval can be classified into ten biological processes, three cellular components, and eight molecular functions. As for the Kyoto Encyclopedia of Genes and Genomes analysis of the candidate genes, a total of six pathways were identified. Finally, we found five genes related to vascular development, three genes related to cell wall, and two genes related to the mechanical strength of the stalk. Our results provide the further understanding of the genetic foundation of vascular bundle-related traits in maize stalk.https://www.frontiersin.org/articles/10.3389/fpls.2021.699486/fullmaizestalkvascular bundlegenome-wide association studycandidate genes |
| spellingShingle | Yunxiao Zheng Peng Hou Liying Zhu Weibin Song Han Liu Han Liu Yaqun Huang Hong Wang Jinjie Guo Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk Frontiers in Plant Science maize stalk vascular bundle genome-wide association study candidate genes |
| title | Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk |
| title_full | Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk |
| title_fullStr | Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk |
| title_full_unstemmed | Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk |
| title_short | Genome-Wide Association Study of Vascular Bundle-Related Traits in Maize Stalk |
| title_sort | genome wide association study of vascular bundle related traits in maize stalk |
| topic | maize stalk vascular bundle genome-wide association study candidate genes |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.699486/full |
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