【摘 要】
：
Genetic diversity and relationships of wild goat grass (Aegilops tauschii Cosson) from Iran and Xinjiang,west China,as well as its weedy type from the Yellow Ri
【机 构】
：
Crop Research Institute,Life Science College,The Ministry of Education Key Laboratory for Biodiversi
论文部分内容阅读
Genetic diversity and relationships of wild goat grass (Aegilops tauschii Cosson) from Iran and Xinjiang,west China,as well as its weedy type from the Yellow River region of Shaanxi and Henan provinces in China were analyzed by simple sequence repeat (SSR) fingerprints.A high level of genetic diversity in Aegilops tauschii accessions from Iran was observed,and the richness of genetic diversity was followed by accessions from Shaanxi,Henan,and Xinjiang.The weedy type of Aegilops tauschii showed a close genetic relationship with the wild type from different regions in Iran.The results indicated that the weedy Aegilops tauschii found in the Yellow River region was most likely introduced from lran-the diversity center of Aegilops tauschii.The weedy Aegilops tauschii populations found in the Yellow River region may be brought into the central part of China as a weed species together with common wheat (Triticum aestivum L.) from the West during various periods of time in history.This finding has provided strong evidence for the introduction of common wheat from the West into China via the Silk Road,and also demonstrated the important role of the Silk Road in the exchange of agri-culture and other relevant technologies between China and the West.
其他文献
With the self-made equipment, the behavior of the splashed slag coating was studied by the thermo-simulation. The influence of TFe, basicity and heating rate of
With the expression theorem of convex polyhedron, this paper gives the general expres sion for the solutions in standard linear programming problems. And the ca
The effect of ZrO2 content on the fracture toughness, flexural strength and Vickers hardness as well as the erosive wear resistant properties of zirconia toughe
In atmospheric data assimilation systems, the forecast error covariance model is an important component. However, the parameters required by a forecast error co
In this paper, a theoretical model of multi-level, non-spherical scatterers is develotped for fully polarimetric scattering from tree canopy in SAR imaging at C
The theorems for testing the local activity in one-port cellular neural/nonlinear network (CNN) cells with four local state variables are presented. Using the t
The slag-resistance and microstructural changes after the slag tests of MgAlON spinel containing different amount of nitrogen were studied by means of crucible
In this paper, the stabilization of a linear SISO plant with variable operating condition is considered. The plant is described by a linear interpolation of pro
Protective effect of inosine against cell death after photochemically induced focal cerebral ischemia was investigated in adult rats.Intraperitoneal injection o
Cloning pigs by somatic cell nuclear transfer (SCNT) has wide applications in basic research,human medicine and agricultural production.To improve cloning effic