文献类型： 外文期刊

作者： Huang, Haijiao ¹ ; Gao, Xiaoli ¹ ; Li, Yang ¹ ; Tian, Pengjia ¹ ; Nima, Yangzong ¹ ; Laba, Zhaxi ¹ ; Ci, Zhen ¹ ; Wei, Xinhong ¹ ; Qu, Ji ¹ ; Guan, Weixing ¹ ; Liao, Wenhua ¹ ;

作者机构： 1.Tibet Acad Agr & Anim Husb Sci, Lhasa 850000, Peoples R China

关键词： nutritional diversity; germplasm; barley; China; crop improvement

期刊名称：BIOINFORMATION （ 影响因子：1.9； 五年影响因子：1.7 ）

ISSN： 0973-8894

年卷期： 2020 年 16 卷 4 期

页码：

收录情况： SCI

摘要： Barley (Hordeum vulgare L.) is an important agricultural crop. Various studies on the genetic diversity, biochemical and molecular attributes on the species are known. However, information on nutritional variability in a large panel of barley cultivars is limited. Therefore, it is of interest for a quantitative analysis of vitamins, amino acids and dietary fibers in 245 barley of Tibet region in China. The coefficient of variation analysis revealed strong variation of vitamins (VB1>VB2>VE), essential amino acids (valine, histidine, methionine, lysine), nonessential amino acids (Proline, tyrosine, cysteine), dietary fibers, (cellulose>lignin). Principal component analysis detected three clusters of cultivars, each with specific characteristics. However, the most nutritional cultivars were found in Cluster 3, which encompassed 52 cultivars. Distinctly, six cultivars (ZQ2000, BJX230, BJX229, BJX249, BJX191 and BJX265) were identified with highest nutritional values. Overall, our study reveals a large nutritional diversity in barley cultivars from Tibet and represents an important reference for the exploitation of these germplasm in crop improvement and breeding programmes.