Genotypic variation in Fe concentration of barley grain
Genotypic variation in Fe concentration of barley grain
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DOI：
10.1080/00380768.2004.10408583
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发表时间：
2004-12-01
影响因子：
2
通讯作者：
Takeda, K
中科院分区：
文献类型：
--
作者：
Ma, HF;Higashitani, A;Takeda, K
人类缺铁是全世界最普遍的微量营养素缺乏症。为了筛选高铁品种，对冈山大学生物资源研究所大麦种质中心274份标准大麦品种和美洲大麦核心种质135份大麦籽粒铁含量的遗传变异进行了研究。大麦籽粒中铁含量变化较大，SV为24.6~63.3 mg kg(-1)，BCCAM大麦为21.0~83.0 mg kg(-1)。铁含量不受大麦品种关键性状、籽粒行型、有壳或无壳大麦的影响。大麦品种的铁含量也与产地无关。约90%的全铁存在于无壳颗粒中。这些结果为选育富铁品种和研究铁含量的基因变异机制提供了基础数据。
Iron deficiency in humans is the most prevalent micronutrient deficiency worldwide. To screen for high Fe cultivar, genotypic variation in Fe concentration of barley grain was investigated in two collections of barley: 274 standard varieties selected at the Barley Germplasm Center of the Research Institute for Bioresources, Okayama University (SV) and 135 varieties from the Barley Core Collection of Americas (BCCAM). The Fe concentration of barley grain showed large variation, ranging from 24.6 to 63.3 mg kg(-1) in SV, from 21.0 to 83.0 mg kg(-1) in BCCAM barleys. The Fe concentration was not affected by the key characters of barley varieties, kernel row types, and hulled or hull-less. The Fe concentration was also not related to the place of origin of the barley variety. About 90% of total Fe was localized in the grain without hull. These results provide fundamental data for breeding Fe-rich cultivars and for studying the mechanisms involved in genotypic variation in Fe concentration.