Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement
Improving essential nutrient content in staple food crops through biofortification breeding can overcome the micronutrient malnutrition problem. Genetic improvement depends on the availability of genetic variability in the primary gene pool. This study was aimed to ascertain the magnitude of variabi...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/171311 |
| _version_ | 1855532575992315904 |
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| author | Govindaraj, Mahalingam Rai, Kedar N. Kanatti, Anand Upadhyaya, Hari D. Shivade, Harshad Rao, Aluri S. |
| author_browse | Govindaraj, Mahalingam Kanatti, Anand Rai, Kedar N. Rao, Aluri S. Shivade, Harshad Upadhyaya, Hari D. |
| author_facet | Govindaraj, Mahalingam Rai, Kedar N. Kanatti, Anand Upadhyaya, Hari D. Shivade, Harshad Rao, Aluri S. |
| author_sort | Govindaraj, Mahalingam |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Improving essential nutrient content in staple food crops through biofortification breeding can overcome the micronutrient malnutrition problem. Genetic improvement depends on the availability of genetic variability in the primary gene pool. This study was aimed to ascertain the magnitude of variability in a core germplasm collection of diverse origin and predict pearl millet biofortification prospects for essential micronutrients. Germplasm accessions were evaluated in field trials at ICRISAT, India. The accessions differed significantly for all micronutrients with over two-fold variation for Fe (34–90 mg kg−1), Zn (30–74 mg kg−1), and Ca (85–249 mg kg−1). High estimates of heritability (> 0.81) were observed for Fe, Zn, Ca, P, Mo, and Mg. The lower magnitude of genotype (G) × environment (E) interaction observed for most of the traits implies strong genetic control for grain nutrients. The top-10 accessions for each nutrient and 15 accessions, from five countries for multiple nutrients were identified. For Fe and Zn, 39 accessions, including 15 with multiple nutrients, exceeded the Indian cultivars and 17 of them exceeded the biofortification breeding target for Fe (72 mg kg−1). These 39 accessions were grouped into 5 clusters. Most of these nutrients were positively and significantly associated among themselves and with days to 50% flowering and 1000-grain weight (TGW) indicating the possibility of their simultaneous improvement in superior agronomic background. The identified core collection accessions rich in specific and multiple-nutrients would be useful as the key genetic resources for developing biofortified and agronomically superior cultivars. |
| format | Journal Article |
| id | CGSpace171311 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1713112025-10-28T10:12:08Z Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement Govindaraj, Mahalingam Rai, Kedar N. Kanatti, Anand Upadhyaya, Hari D. Shivade, Harshad Rao, Aluri S. trace elements grain pearl millet nutrition nutrients germplasm biofortification iron zinc Improving essential nutrient content in staple food crops through biofortification breeding can overcome the micronutrient malnutrition problem. Genetic improvement depends on the availability of genetic variability in the primary gene pool. This study was aimed to ascertain the magnitude of variability in a core germplasm collection of diverse origin and predict pearl millet biofortification prospects for essential micronutrients. Germplasm accessions were evaluated in field trials at ICRISAT, India. The accessions differed significantly for all micronutrients with over two-fold variation for Fe (34–90 mg kg−1), Zn (30–74 mg kg−1), and Ca (85–249 mg kg−1). High estimates of heritability (> 0.81) were observed for Fe, Zn, Ca, P, Mo, and Mg. The lower magnitude of genotype (G) × environment (E) interaction observed for most of the traits implies strong genetic control for grain nutrients. The top-10 accessions for each nutrient and 15 accessions, from five countries for multiple nutrients were identified. For Fe and Zn, 39 accessions, including 15 with multiple nutrients, exceeded the Indian cultivars and 17 of them exceeded the biofortification breeding target for Fe (72 mg kg−1). These 39 accessions were grouped into 5 clusters. Most of these nutrients were positively and significantly associated among themselves and with days to 50% flowering and 1000-grain weight (TGW) indicating the possibility of their simultaneous improvement in superior agronomic background. The identified core collection accessions rich in specific and multiple-nutrients would be useful as the key genetic resources for developing biofortified and agronomically superior cultivars. 2020 2025-01-29T12:57:59Z 2025-01-29T12:57:59Z Journal Article https://hdl.handle.net/10568/171311 en Open Access Springer Govindaraj, Mahalingam; Rai, Kedar N.; Kanatti, Anand; Upadhyaya, Hari D.; Shivade, Harshad; and Rao, Aluri S. 2020. Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement. Scientific Reports 10: 21177. https://doi.org/10.1038/s41598-020-77818-0 |
| spellingShingle | trace elements grain pearl millet nutrition nutrients germplasm biofortification iron zinc Govindaraj, Mahalingam Rai, Kedar N. Kanatti, Anand Upadhyaya, Hari D. Shivade, Harshad Rao, Aluri S. Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title | Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title_full | Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title_fullStr | Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title_full_unstemmed | Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title_short | Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| title_sort | exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement |
| topic | trace elements grain pearl millet nutrition nutrients germplasm biofortification iron zinc |
| url | https://hdl.handle.net/10568/171311 |
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