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您的检索式：作者名="Chaocai Sun"
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| 1 | Development of photon beam position feedback system based on two PBPMs at HLS显示文摘In this paper,in order to stabilize the position and angle of the light source point,a new photon beam position feedback system based on the Photon Beam Position Monitors was developed on Hefei Light Source,and used to correct the position drift and angle variation of the light source at the same time.On introducing the feedback principle,the transfer function matrix is calibrated,indicating that the new system is workable and effective. | GU Liming SUN Baogen XUAN Ke YANG Yongliang LU Ping ZHOU Zeran CHENG Chaocai XU Hongliang | 2013 | Nuclear Science and Techniques2013，24，2： | 1 |
| 2 | Breeding dominant genic male sterility restorer line of Brassica napus L.显示文摘To facilate breeding process of Brassica napus,a microspore culture and molecular marker-assisted screening combined system were proposed in this research.At early flowering stage,F1 offspring of hybridized combination HY15 A×HF06 was used as donor for microspore culture to analyze effects of colchicine concentration on embryogenic and diploid rates of microspore.Treatment with 50 mg/L colchicine resulted in embryogenic rate of3.56 embryos/bud,which was substantially higher than control(0.78 embryos/bud).A total of 1,387 embryos and 862 single plants were obtained after induction culture.Ploidy detection was performed for the regenerated plants by flow cytometry.Diploid rates of microspores treated with 50 mg/L and 70 mg/L colchicine were 17.2%and 21.0%respectively,which was significantly higher than control(10.5%).Totally 108 single plants that doubled successfully were randomly selected and screened using molecular marker BE10.Approximately 54 of108 plants generated a 305 bp amplification product,whereas the other 54 plants showed a 398 bp band,thereby satisfying 1:1 separation ratio(x0.052=0.0093).These coincided with field identification results.Findings of this study indicated that homozygous breeding material could be obtained by microspore culture in a short time,thereby remarkably accelerate breeding. | Junying Zhang Jianxia Jiang Liyong Yang Meiyan Jiang Yanli Li Weirong Wang Chaocai Sun Jifeng Zhu Xirong Zhou | 2020 | Oil Crop Science2020，5，2： | 0 |
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