Performance of biofortified spring wheat genotypes in target environments for grain zinc and iron concentrations

Govindan, Velu; Singh, Ravi P.; Espino, Julio Huerta; Peña, Roberto J.; Arun, B.; Mahendru-Singh, Anju; Mujahid, Muhammad Yaqub; Sohu, V. S.; Mavi, G. S.; Crossa, J.; Alvarado, Gregorio; Joshi, Arun Kumar; Pfeiffer, Wolfgang

doi:10.1016/j.fcr.2012.07.018

Cited by 128 publications

(99 citation statements)

References 12 publications

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“…Gomez-Becerra et al (2010b) discovered most of genotypes were not only with high grain Zn and Fe concentrations but also high seed weight in T. dicoccoides, considering no concentration effect due to small grain size. Similar to the previous reports by Cakmak et al (2004) and Velu et al (2012) who discovered no negative linkage of grain Zn and Fe with grain yield, our study also indicated the Fe and Zn concentrations were not correlative with both the seed volume and thousand-kernel weight (TKW) in 12 T. timopheevii ssp. timopheevii accessions (Table 2).…”

Section: Discussionsupporting

confidence: 79%

“…Morgounov et al (2007) reported that there is a significant negative correlation between the concentrations of grain Fe and Zn and the grain yield in modern cultivars. But, there seems to be no correlation between thousand-kernel weight (TKW) and grain Zn content in adapted wheat lines (Velu et al 2012). Gomez-Becerra et al (2010b) discovered most of genotypes were not only with high grain Zn and Fe concentrations but also high seed weight in T. dicoccoides, considering no concentration effect due to small grain size.…”

Section: Discussionmentioning

confidence: 99%

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Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

Liu

Zhang

et al. 2017

Cereal Research Communications

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Grains of 12 accessions of Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii (AAGG, 2n = 4x = 28) and one bread wheat cultivar Chinese Spring (CS) and one durum wheat cultivar Langdon (LDN) grown across two years were analyzed for grain iron (Fe) and zinc (Zn) concentrations. All the 12 tested T. timopheevii ssp. timopheevii genotypes showed significantly higher concentration of grain Fe and Zn than CS and LDN. Aboundant genetic variability of both the Fe and Zn concentrations was observed among the T. timopheevii ssp. timopheevii accessions, averagely varied from 47.06 to 90.26 mg kg -1 and from 30.05 to 65.91 mg kg -1 , respectively. Their grain Fe and Zn concentrations between years exhibited a significantly positive correlation with the correlation coefficients r = 0.895 and r = 0.891, respectively, indicating the highly genetic stability. Flag leaf possessed twice or three times higher concentrations for both Fe and Zn than grain, and a significantly high positive correlation appeared between the two organs with r = 0.648 for Fe and r = 0.957 for Zn concentrations, respectively, suggesting flag leaves might be indirectly used for evaluating grain Zn and Fe contents. Significant correlations occurred between grain Fe and Zn concentrations, and between grain Zn concentration and the two agronomic traits of plant height and number of spikelets per spike. Both the concentrations were not related to seed size or weight as well as NAM-G1 gene, implying the higher grain Fe and Zn concentrations of T. timopheevii ssp. timopheevii species are not ascribed to concentration effects of seed and the genetic control of NAM-G1 gene. There might be some other biological factors impacting the grain's Zn and Fe concentrations. These results indicated T. timopheevii ssp. timopheevii species might be a promising genetic resource with high Fe and Zn concentrations for the biofortification of current wheat cultivars. Keywords IntroductionIt has been reported that micronutrient malnutrition, particularly deficiencies in Fe and Zn, afflicts a very large proportion of the world's people. The World Health Organization estimated that more than 2 billion people have deficiencies in Zn and Fe, resulting in overall poor health, anemia, increased morbidity and mortality rates, and low worker productivity (Hotz and Brown 2004;Welch and Graham 2004;Bouis 2007;Cakmak 2008;Salim-Ur-Rehman et al. 2010). Currently, the phenomena which are termed "hidden hunger" (FAO 2002), generally occur in developing countries, where most people rely on cereal grain as their staple food.Bread wheat (Triticum aestivum L.) is one of the most important staple food crops, providing 28% of world's edible dry matter (Cakmak 2008). So, the composition and nutritional quality of wheat grain have a significant impact on human health and wellbeing worldwide (Chatzav et al. 2010;Wang et al. 2011). In the past, a great effort has been made for improving wheat grain yield and resistance to leaf diseases (He et al. 2004). However, little attention was given to microm...

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

Liu

Zhang

et al. 2017

Cereal Research Communications

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show abstract

“…The significance of Genotype and Environment interaction suggests that genotypes behaved differently in different environment. Similar kind of results earlier reported by Oikeh et al, (2004), Velu et al, (2012), Suwarto and Nasrullah (2011) and Prasanna et al, (2011). …”

Section: Analysis Of Variancesupporting

confidence: 81%

Genotype × Environment Interactions and Stability Analysis for Grain Iron and Zinc Concentrations in Rice (Oryza sativa L.) Genotypes

Ajmera¹,

Kumar²,

Ravindrababu³

2017

Int.J.Curr.Microbiol.App.Sci

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“…Plant breeders screen existing crop varieties and accessions in global germplasm banks, including both adapted and non-adapted material such as landraces and wild relatives. Initial research indicated that selection of lines with diverse vitamin and mineral profiles could be exploited for genetic improvement [3,4,5,6,7,8,9,10,11,12,13,14,15]. When lines with these traits are identified, they are used in early-stage product development and parent building.…”

Section: Harvestplus Breeding Approachmentioning

confidence: 99%

Progress update: Crop development of biofortified staple food crops under HarvestPlus

Andersson¹,

Saltzman²,

Virk³

et al. 2017

AJFAND

119

130

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Performance of biofortified spring wheat genotypes in target environments for grain zinc and iron concentrations

Cited by 128 publications

References 12 publications

Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

Genotype × Environment Interactions and Stability Analysis for Grain Iron and Zinc Concentrations in Rice (Oryza sativa L.) Genotypes

Progress update: Crop development of biofortified staple food crops under HarvestPlus

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