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Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum
Panicle morphology is an important trait in racial classification and can determine grain yield and other agronomic traits in sorghum. In this study, we performed association mapping of panicle length, panicle width, panicle compactness, and peduncle recurving in the sorghum mini core panel measured...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8525895/ https://www.ncbi.nlm.nih.gov/pubmed/34675951 http://dx.doi.org/10.3389/fpls.2021.743838 |
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author | Wang, Lihua Upadhyaya, Hari D. Zheng, Jian Liu, Yanlong Singh, Shailesh Kumar Gowda, C. L. L. Kumar, Rajendra Zhu, Yongqun Wang, Yi-Hong Li, Jieqin |
author_facet | Wang, Lihua Upadhyaya, Hari D. Zheng, Jian Liu, Yanlong Singh, Shailesh Kumar Gowda, C. L. L. Kumar, Rajendra Zhu, Yongqun Wang, Yi-Hong Li, Jieqin |
author_sort | Wang, Lihua |
collection | PubMed |
description | Panicle morphology is an important trait in racial classification and can determine grain yield and other agronomic traits in sorghum. In this study, we performed association mapping of panicle length, panicle width, panicle compactness, and peduncle recurving in the sorghum mini core panel measured in multiple environments with 6,094,317 single nucleotide polymorphism (SNP) markers. We mapped one locus each on chromosomes 7 and 9 to recurving peduncles and eight loci for panicle length, panicle width, and panicle compactness. Because panicle length was positively correlated with panicle width, all loci for panicle length and width were colocalized. Among the eight loci, two each were on chromosomes 1, 2, and 6, and one each on chromosomes 8 and 10. The two loci on chromosome 2, i.e., Pm 2-1 and Pm 2-2, were detected in 7 and 5 out of 11 testing environments, respectively. Pm 2-2 colocalized with panicle compactness. Candidate genes were identified from both loci. The rice Erect Panicle2 (EP2) ortholog was among the candidate genes in Pm 2-2. EP2 regulates panicle erectness and panicle length in rice and encodes a novel plant-specific protein with unknown functions. The results of this study may facilitate the molecular identification of panicle morphology-related genes and the enhancement of yield and adaptation in sorghum. |
format | Online Article Text |
id | pubmed-8525895 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85258952021-10-20 Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum Wang, Lihua Upadhyaya, Hari D. Zheng, Jian Liu, Yanlong Singh, Shailesh Kumar Gowda, C. L. L. Kumar, Rajendra Zhu, Yongqun Wang, Yi-Hong Li, Jieqin Front Plant Sci Plant Science Panicle morphology is an important trait in racial classification and can determine grain yield and other agronomic traits in sorghum. In this study, we performed association mapping of panicle length, panicle width, panicle compactness, and peduncle recurving in the sorghum mini core panel measured in multiple environments with 6,094,317 single nucleotide polymorphism (SNP) markers. We mapped one locus each on chromosomes 7 and 9 to recurving peduncles and eight loci for panicle length, panicle width, and panicle compactness. Because panicle length was positively correlated with panicle width, all loci for panicle length and width were colocalized. Among the eight loci, two each were on chromosomes 1, 2, and 6, and one each on chromosomes 8 and 10. The two loci on chromosome 2, i.e., Pm 2-1 and Pm 2-2, were detected in 7 and 5 out of 11 testing environments, respectively. Pm 2-2 colocalized with panicle compactness. Candidate genes were identified from both loci. The rice Erect Panicle2 (EP2) ortholog was among the candidate genes in Pm 2-2. EP2 regulates panicle erectness and panicle length in rice and encodes a novel plant-specific protein with unknown functions. The results of this study may facilitate the molecular identification of panicle morphology-related genes and the enhancement of yield and adaptation in sorghum. Frontiers Media S.A. 2021-10-05 /pmc/articles/PMC8525895/ /pubmed/34675951 http://dx.doi.org/10.3389/fpls.2021.743838 Text en Copyright © 2021 Wang, Upadhyaya, Zheng, Liu, Singh, Gowda, Kumar, Zhu, Wang and Li. 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 Wang, Lihua Upadhyaya, Hari D. Zheng, Jian Liu, Yanlong Singh, Shailesh Kumar Gowda, C. L. L. Kumar, Rajendra Zhu, Yongqun Wang, Yi-Hong Li, Jieqin Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title | Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title_full | Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title_fullStr | Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title_full_unstemmed | Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title_short | Genome-Wide Association Mapping Identifies Novel Panicle Morphology Loci and Candidate Genes in Sorghum |
title_sort | genome-wide association mapping identifies novel panicle morphology loci and candidate genes in sorghum |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8525895/ https://www.ncbi.nlm.nih.gov/pubmed/34675951 http://dx.doi.org/10.3389/fpls.2021.743838 |
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