%0 Journal Article
%T Comparison of Grain Zinc and Iron Concentration between Synthetic Hexaploid Wheats and Their Parents
%A Bo Zhang
%A Wenjie Chen
%A Baolong Liu
%A Lianquan Zhang
%A Deyong Zhao
%A Yuancan Xiao
%A Dengcai Liu
%A Huaigang Zhang
%J Agricultural Sciences
%P 1433-1439
%@ 2156-8561
%D 2014
%I Scientific Research Publishing
%R 10.4236/as.2014.514154
%X Deficiencies
of iron (Fe) and zinc (Zn) in human food afflict a large proportion of the
world¡¯s population. Wheat is a major food source of minerals. One way to
enhance bread wheat¡¯s ability to enrich these minerals would be to take
advantage of diversity of wild species by creating synthetic hexaploid wheat
(SW). In this study, two minerals (Fe and Zn) concentrated in the grain of <i>Aegilops
tauschii </i>Coss. (2n = 2x = 14, DD), <i>Triticum turgidum</i> L. (2n = 4x =
28, AABB), and 33 lines of their corresponding SW (2n = 2x = 42, AABBDD) were
evaluated. The results showed that Fe concentration was decreased in most of SW
lines compared with their parental <i>Aegilops tauschii </i>accessions, while
Zn concentration was greatly increased in most of SW lines compared with their
parental <i>Aegilops tauschii </i>accessions. <i>Aegilops tauschii</i> had
stronger Fe enrichment than <i>Triticum turgidum </i>while they expressed the
same ability for Zn enrichment. The genotypic variance based on their
physiological performance was analyzed. SW lines showed less genotypic variance
of Fe and Zn concentration than <i>Aegilops tauschii</i>. SW lines showed less
genotypic variance of Fe concentration than <i>Triticum turgidum</i> L. lines
while they had more genotypic variance of Zn concentration than <i>Triticum
turgidum</i> L. lines. Regardless of the fact that the traits expressed in wild
relatives of wheat may not predict the traits that will be expressed in SW
lines derived from them, production of SW could be a powerful method creating
genotypes with enhanced trait expression.
%K &lt
%K i&gt
%K Aegilops tauschii&lt
%K /i&gt
%K Allopolyploidzization
%K Synthetic Wheat
%K Micronutrient
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52408