"11662","9","archive","3170",,,"disk0/00/01/16/62","2020-12-04 09:18:53","2020-12-04 09:18:53","2020-12-04 09:18:53","article",,,"show",,,,"","","","","","","","","","",,,,"Govindaraj","M","","","","","","","Govindaraj","M","","","","",,,,,"","",,,,,"","","ICRISAT (Patancheru)","India","Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement","pub","S1.5.1","CRPS2","crp1.15","public",,,"Pearl Millet, Genetics, Nutrition",,"This study was undertaken as a part of the CGIAR Research Program on A4NH. The authors acknowledge the
funding support from the HarvestPlus Challenge Programme of the CGIAR, and laboratory support provided
by Waite Analytical Services, University of Adelaide, Australia, for grain nutrients analysis of grain samples.
Funding was provided by HarvestPlus","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.","2020-12","published",,"Scientific Reports (TSI)","10","1","Nature Research",,"1-13",,,,,,"doi:10.1038/s41598-020-77818-0",,,,,"TRUE",,"2045-2322",,,,,,"","https://doi.org/10.1038/s41598-020-77818-0","","",,"","",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,,,,
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