Author:
Calayugan Mark Ian C.,Formantes Andrea Kariza,Amparado Amery,Descalsota-Empleo Gwen Iris,Nha Chau Thanh,Inabangan-Asilo Mary Ann,Swe Zin Mar,Hernandez Jose E.,Borromeo Teresita H.,Lalusin Antonio G.,Mendioro Merlyn S.,Diaz Ma. Genaleen Q.,Viña Celia B. dela,Reinke Russell,Swamy B. P. Mallikarjuna
Abstract
AbstractThe development of micronutrient dense rice varieties with good agronomic traits is one of the sustainable and cost-effective approaches for reducing malnutrition. Identification of QTLs for high grain Fe and Zn, yield and yield components helps in precise and faster development of high Fe and Zn rice. We carried out a three-season evaluation using IR05F102 x IR69428 derived doubled-haploid population at IRRI. Inclusive composite interval mapping was carried out using SNP markers and Best Linear Unbiased Estimates of the phenotypic traits. A total of 23 QTLs were identified for eight agronomic traits and grain Fe and Zn concentration that explained 7.2 to 22.0% PV. A QTL by environment interaction analysis confirmed the stability of nine QTLs, including two QTLs for Zn on chromosomes 5 and 12. One epistatic interaction for plant height was significant with 28.4% PVE. Moreover, five QTLs were identified for Fe and Zn that harbor several candidate genes, e.g. OsZIP6 on QTL qZn5.1. A number of QTLs were associated with a combination of greater yield and increased grain Zn levels. These results are useful for development of new rice varieties with good agronomic traits and high grain Zn using MAS, and identification of genetic resources with the novel QTLs for grain Zn.
Publisher
Springer Science and Business Media LLC
Reference70 articles.
1. Khush, G. S. What it will take to Feed 5.0 Billion Rice consumers in 2030. Plant. Mol. Biol. 59(1), 1–6, https://doi.org/10.1007/s11103-005-2159-5 (2005).
2. Ricepedia, Rice as a crop. [Online] Available from, http://ricepedia.org/rice-as-a-crop/rice-productivity (2019).
3. Pradhan, P., Fischer, G., van Velthuizen, H., Reusser, D. E. & Kropp, J. P. Closing Yield Gaps: How Sustainable Can We Be? PLoS One 10(6), e0129487, https://doi.org/10.1371/journal.pone.0129487 (2015).
4. Tripathy., S. K., Dash, M., Behera, S. K., Ithape, D. M. & Maharana, M. Nutrient rich quality rice- a journey to healthy life. Adv. Plants Agric. Res. 7(5), 364–367 (2017).
5. Tripathi, D. K. et al. Micronutrients and their diverse role in agricultural crops: advances and future prospective. Acta Physiol. Plant. 37, 139, https://doi.org/10.1007/s11738-015-1870-3 (2015).
Cited by
52 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献