Advances in breeding for high grain zinc in rice

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dc.creatorSwamy, B.P. Mallikarjuna
dc.creatorRahman, Mohammad Akhlasur
dc.creatorInabangan-Asilo, Mary Ann
dc.creatorAmparado, Amery
dc.creatorManito, Christine
dc.creatorChadha-Mohanty, Prabhjit
dc.creatorReinke, Russell
dc.creatorSlamet-Loedin, Inez H.
dc.date2016-12
dc.date2024-12-19T12:54:49Z
dc.date2024-12-19T12:54:49Z
dc.date.accessioned2026-06-27T04:15:22Z
dc.descriptionZinc (Zn) is one of the most essential micronutrients required for the growth and development of human beings. More than one billion people, particularly children and pregnant women suffer from Zn deficiency related health problems in Asia. Rice is the major staple food for Asians, but the presently grown popular high yielding rice varieties are poor supplier of Zn in their polished form. Breeding rice varieties with high grain Zn has been suggested to be a sustainable, targeted, food-based and cost effective approach in alleviating Zn deficiency. The physiological, genetic and molecular mechanisms of Zn homeostasis have been well studied, but these mechanisms need to be characterized from a biofortification perspective and should be well integrated with the breeding processes. There is a significant variation for grain Zn in rice germplasm and efforts are being directed at exploiting this variation through breeding to develop high Zn rice varieties. Several QTLs and gene specific markers have been identified for grain Zn and there is a great potential to use them in Marker-Assisted Breeding. A thorough characterization of genotype and environmental interactions is essential to identify key environmental factors influencing grain Zn. Agronomic biofortification has shown inconsistent results, but a combination of genetic and agronomic biofortification strategies may be more effective. Significant progress has been made in developing high Zn rice lines for release in target countries. A holistic breeding approach involving high Zn trait development, high Zn product development, product testing and release, including bioefficacy and bioavailability studies is essential for successful Zn biofortification
dc.identifierhttps://hdl.handle.net/10568/165207
dc.identifier.urihttp://hdl.handle.net/123456789/26741
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceSwamy, B. P. Mallikarjuna; Rahman, Mohammad Akhlasur; Inabangan-Asilo, Mary Ann; Amparado, Amery; Manito, Christine; Chadha-Mohanty, Prabhjit; Reinke, Russell and Slamet-Loedin, Inez H. 2016. Advances in breeding for high grain zinc in rice. Rice, Volume 9, no. 1
dc.titleAdvances in breeding for high grain zinc in rice
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)