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Short Communication | Open Access

Genetic diversity for grain Zn concentration in finger millet genotypes: Potential for improving human Zn nutrition

Ramegowda Yamunarania,1, Geetha Govinda, Venkategowda Ramegowdaa,b, Vokkaliga Thammegowda Harshavardhana, Ambarahalli Guligowda Shankara( )
Department of Crop Physiology, University of Agricultural Sciences, Gandhi Krishi Vignana Kendra, Bangalore 560 065, Karnataka, India
Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA

1 Present address: Department of Plant Pathology, University of Arkansas, Fayetteville, AR 72701, USA.

Peer review under responsibility of Crop Science Society of China and Institute of Crop Science, CAAS.

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Abstract

Nearly half of the world population suffers from micronutrient malnutrition, particularly Zn deficiency. It is important to understand genetic variation for uptake and translocation behaviors of Zn in relevant crop species to increase Zn concentration in edible parts. In the present study, genetic variation in grain Zn concentration of 319 finger millet genotypes was assessed. Large genetic variation was found among the genotypes, with concentrations ranging from 10 to 86 μg g-1 grain. Uptake and translocation studies with Zn/65Zn application in 12 selected low-Zn genotypes showed wide variation in root uptake and shoot translocation, with genotypes GEC331 and GEC164 showing greater uptake and translocation. Genotypes GEC164 and GEC543 showed increased grain Zn concentration. Genotypes GEC331 and GEC164 also showed improved yield under Zn treatment. Appreciable variation in grain Zn concentration among finger millet genotypes found in this study offers opportunities to improve Zn nutrition through breeding.

Keywords

ZincGenetic variationFinger milletMicronutrientHuman nutrition

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The Crop Journal
Volume 4 Issue 3,
June 2016
Pages 229-234
DOI: 10.1016/j.cj.2015.12.001
Cite this article:
Yamunarani R, Govind G, Ramegowda V, et al. Genetic diversity for grain Zn concentration in finger millet genotypes: Potential for improving human Zn nutrition. The Crop Journal, 2016, 4(3): 229-234. https://doi.org/10.1016/j.cj.2015.12.001

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Received: 29 October 2015
Revised: 30 December 2015
Accepted: 02 February 2016
Published: 11 February 2016
© 2016 Crop Science Society of China and Institute of Crop Science, CAAS.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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