Genetic variability in agronomic traits of a germplasm collection of hulless barley
文献类型: 外文期刊
第一作者: Zeng, X. Q.
作者: Zeng, X. Q.
作者机构:
关键词: Hordeum vulgare;Agronomic character;Yield;Lodging resistance
期刊名称:GENETICS AND MOLECULAR RESEARCH ( 影响因子:0.764; 五年影响因子:0.912 )
ISSN: 1676-5680
年卷期: 2015 年 14 卷 4 期
页码:
收录情况: SCI
摘要: Germplasm collections represent an important genetic source for crop improvements. In this study, 220 accessions of hulless barley were collected worldwide and their genetic diversity was investigated. Sixteen agronomic traits, including yield and yield components, grain morphology, leaf size, plant height, and lodging resistance, were assessed under field conditions. All studied traits exhibited large variation. Thousand seed weight determined yield, and was strongly affected by spike length and spike number. Four varieties, Gaoyuan Zao 1, Fu 8-4, Zang 0331, and Harry (WDM00618), showed high resistance to lodging. Significant correlations among the traits were observed, indicating trait interactions. Life cycle had the smallest coefficient of variation (CV) among native, foreign, and improved varieties, whereas the CV of cellulose content was more or less balanced. Among the accessions from domestic and foreign germplasm, the CV for life cycle remained the lowest, whereas those for carbon/nitrogen and spike number per plant were the highest. Interestingly, higher genetic diversity was observed in domestic than in foreign accessions. Together, our findings demonstrate that there is abundant diversity in worldwide hulless barley germplasm collections, which would be useful when introducing their desirable traits into cultivars of hulless barley to improve yield and other agronomic traits.
分类号:
- 相关文献
作者其他论文 更多>>
-
Cloning and characterization of up-regulated HbSINA4 gene induced by drought stress in Tibetan hulless barley
作者:Yuan, H. J.;Nyima, T. S.;Wang, Y. L.;Xu, Q. J.;Zeng, X. Q.;Yuan, H. J.;Nyima, T. S.;Wang, Y. L.;Xu, Q. J.;Zeng, X. Q.;Luo, X. M.
关键词:Barley;Drought stress;Gene cloning;Gene expression;HbSINA4;Hordeum vulgare
-
Genetic relationship between lodging and lodging components in barley (Hordeum vulgare) based on unconditional and conditional quantitative trait locus analyses
作者:Chen, W. Y.;Liu, Z. M.;Deng, G. B.;Pan, Z. F.;Liang, J. J.;Long, H.;Yu, M. Q.;Chen, W. Y.;Liu, Z. M.;Zeng, X. Q.;Tashi, N. M.;Tashi, N. M.
关键词:Barley; Hordeum vulgare L.; Genetic relationship; Lodging; Lodging components; Unconditional and conditional QTL analysis