Uncovering key genomic regions for agronomical traits and stress tolerance in sorghum [Sorghum bicolor (L.) Moench] through meta-QTL analysis
Article
Article Title | Uncovering key genomic regions for agronomical traits and stress tolerance in sorghum [Sorghum bicolor (L.) Moench] through meta-QTL analysis |
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ERA Journal ID | 5302 |
Article Category | Article |
Authors | Verma, Shruti, Quaiyum, Zeba, Prasad, Bishun Deo, Sahni, Sangita, Naik, Yogesh Dashrath, Mane, Rushikesh Sanjay, Eerapagula, Ramesh, Mahato, Ajay Kumar, Jha, Sonam, Rangari, Sagar Krushnaji, Mishra, Soumya, Sharma, V. K., Bhutia, K. L. and Thudi, Mahendar |
Journal Title | Cereal Research Communications |
Number of Pages | 14 |
Year | 2024 |
Publisher | Springer |
Akademiai Kiado Zrt. | |
Place of Publication | Hungary |
ISSN | 0133-3720 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s42976-024-00585-5 |
Web Address (URL) | https://link.springer.com/article/10.1007/s42976-024-00585-5 |
Abstract | Sorghum [Sorghum bicolor (L.) Moench] is a crucial food and fodder crop worldwide, particularly significant in the current era of climate change due to its capacity to withstand abiotic stresses such as drought and heat. Despite its resilience, the growth and production of sorghum are highly impacted by various stresses. Identifying consensus genomic regions and high confidence QTLs will enhance trait improvement through genomics assisted breeding. Towards this direction, in this study, we performed Meta-QTL analysis deploying 235 QTLs responsible for biotic stresses (sorghum shoot fly and ergot disease), abiotic stresses (drought and salinity), yield and other agronomic traits reported earlier. We constructed a high-density genetic map comprising 1257 markers spanning a distance of 2214.77 cM. Additionally, we have identified 26 Meta-QTLs in sorghum. The average confidence interval of reported Meta-QTLs underwent 2.56 fold refinement compared to the initial QTLs, resulting in identifying both well-known functionally characterized genes and several potential novel candidate genes for the investigated traits. Tissue-specific in silico expression analysis of defense-related genes, such as Sobic.002G013800 (Meta-QTL 2.1), Sobic.005G053800 (Meta-QTL 5.1), Sobic.005G062600 (Meta-QTL 5.1), Sobic.005G075100 (Meta-QTL 5.1) and Sobic.007G027100 (Meta-QTL 7.3), revealed that they were significantly upregulated in several tissues during different stress conditions. These findings provide novel insights into the molecular responses to agronomic traits, biotic and abiotic stresses, significantly advancing our understanding towards enhanced genetic mapping and marker-assisted selection for improvement in sorghum. |
Keywords | Climate change; Confidence interval; Consensus map; Gene expression |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 409901. Agricultural engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Dr. Rajendra Prasad Central Agricultural University, India |
Tirhut College of Agriculture, India | |
Centre for DNA Fingerprinting and Diagnostics, India | |
Centre for Crop Health | |
Dr. Fort Valley State University, United States |
https://research.usq.edu.au/item/zv07q/uncovering-key-genomic-regions-for-agronomical-traits-and-stress-tolerance-in-sorghum-sorghum-bicolor-l-moench-through-meta-qtl-analysis
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