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022			_a1664-8021 (Online)
024	8		_ahttps://doi.org/10.3389/fgene.2022.1045955
040			_aMX-TxCIM
041			_aeng
100	1		_aRoy, C. _919446
245	1	0	_aGenomic approaches for improving grain zinc and iron content in wheat
260			_bFrontiers, _c2022. _aSwitzerland :
500			_aPeer review
500			_aOpen Access
520			_aMore than three billion people worldwide suffer from iron deficiency associated anemia and an equal number people suffer from zinc deficiency. These conditions are more prevalent in Sub-Saharan Africa and South Asia. In developing countries, children under the age of five with stunted growth and pregnant or lactating women were found to be at high risk of zinc and iron deficiencies. Biofortification, defined as breeding to develop varieties of staple food crops whose grain contains higher levels of micronutrients such as iron and zinc, are one of the most promising, cost-effective and sustainable ways to improve the health in resource-poor households, particularly in rural areas where families consume some part of what they grow. Biofortification through conventional breeding in wheat, particularly for grain zinc and iron, have made significant contributions, transferring important genes and quantitative trait loci (QTLs) from wild and related species into cultivated wheat. Nonetheless, the quantitative, genetically complex nature of iron and zinc levels in wheat grain limits progress through conventional breeding, making it difficult to attain genetic gain both for yield and grain mineral concentrations. Wheat biofortification can be achieved by enhancing mineral uptake, source-to-sink translocation of minerals and their deposition into grains, and the bioavailability of the minerals. A number of QTLs with major and minor effects for those traits have been detected in wheat; introducing the most effective into breeding lines will increase grain zinc and iron concentrations. New approaches to achieve this include marker assisted selection and genomic selection. Faster breeding approaches need to be combined to simultaneously increase grain mineral content and yield in wheat breeding lines.
546			_aText in English
650		7	_aBiofortification _2AGROVOC _91731
650		7	_aMarker-assisted selection _2AGROVOC _910737
650		7	_aMalnutrition _2AGROVOC _96463
650		7	_aBreeding _2AGROVOC _91029
650		7	_aQuantitative trait loci mapping _2AGROVOC _929051
650		7	_aSpeed breeding _2ÁGROVOC _929388
650		7	_aZinc _2AGROVOC _91315
650		7	_aIron _2AGROVOC _93544
650		7	_aWheat _2AGROVOC _91310
700	1		_aKumar, S. _929389
700	1		_aRanjan, R.D. _929390
700	1		_aKumhar, S.R. _929391
700	1		_aVelu, G. _8INT2983 _9880 _gGlobal Wheat Program
773	0		_tFrontiers in Genetics _gv. 13, art. 1045955 _dSwitzerland : Frontiers, 2022 _w58093 _x1664-8021
856			_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/22326
942			_cJA _n0 _2ddc
999			_c65768 _d65760