Exploring novel diversity for biofortification in Elite D-genome synthetic hexaploid wheat (AABBDD)

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Exploring novel diversity for biofortification in Elite D-genome synthetic hexaploid wheat (AABBDD)

Zunera Shabbir, Sadia Latif, Sehrish Talib, Maimoona Hussain, Mohsin Ali, Muhammad Wahab Yasir, Abida Akram, Umar Masood Quraishi
Int. J. Biosci.10( 1), 100-108, January 2017.
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Micronutrient deficiencies otherwise termed as hidden hunger, are serious health concern for more than 2 billion people worldwide including developing and under developed countries. Wheat is an important staple crop because it is a major source of dietary energy and protein for more than one third of world population. Thus, biofortification of wheat can play a vital role to overcome hidden hunger in the countries where wheat is the foremost source of protein and nutrients. We examined 128 Elite D-genome synthetic hexaploid wheats (SHWs) to explore new genetic and phenotypic variability that may be exploited for biofortification of wheat. Grain iron (Fe) ranged between 7.45-70.33 mg kg-1 with an average of 29.56 mg kg-1and grain zinc (Zn) ranged between 5.32-171.38 mg kg-1 with an average of 43.87 mg kg-1. Some accessions (68.111/RGB-U//WARD/3/Ae. tauschii (326), DVERD_2/Ae. tauschii (221), GAN/Ae. tauschii (897) showed exceptionally high iron and zinc contents while maintaining thousand grain weight and number of spikelet per spike. In the study, the effect of the tauschii parent as well as the durum parent of the alleles was observed on the phenotypic traits and on Fe and Zn. These varieties can be used in future for wheat bio-fortification breeding program.


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