Photoperiod-sensitive genie male sterile (PSGMS) rice is a very useful germplasm for hybrid rice development. It was first found as a spontaneous mutant in a japonic a cultivar 'Nongken 58' . pms3 on chromosom...Photoperiod-sensitive genie male sterile (PSGMS) rice is a very useful germplasm for hybrid rice development. It was first found as a spontaneous mutant in a japonic a cultivar 'Nongken 58' . pms3 on chromosome 12 was determined to be the locus where the original PSGMS mutation occurred, changing the normal cultivar Nongken 58 to PSGMS Nongken 58S. Large amounts of RAPD and AFLP analyses were also conducted for the fine mapping of the pms3 genomic region, which resulted in 4 molecular markers linked to pms3. Although these markers somewhat increased the marker density of this region, the pms3 locus is still located in a marker-sparse region.展开更多
A series of naphthylmethyl polyethylenepolyamine have been synthesized in this work.Its complexation with zinc salts in different solvents and the type of formation of the complex were investigated by means of fluores...A series of naphthylmethyl polyethylenepolyamine have been synthesized in this work.Its complexation with zinc salts in different solvents and the type of formation of the complex were investigated by means of fluorescence spectra.The results showed that naphthylmethyl polyethylenepolyamine is a good fluorescence chemical sensor for the testing of foreign zinc ion.A 1:2 stoichiometric complex was found in the solution of compound 3 with zinc acetate.But a 1:1 complex was formed when it reacted with zinc chloride in solution. An obvious excimer emission could be observed in the fluorescence spectrum of compound 3 with zinc chloride.展开更多
基金Project supported by the National Program of High Technology Development of China and the Rockefeller Foundation.
文摘Photoperiod-sensitive genie male sterile (PSGMS) rice is a very useful germplasm for hybrid rice development. It was first found as a spontaneous mutant in a japonic a cultivar 'Nongken 58' . pms3 on chromosome 12 was determined to be the locus where the original PSGMS mutation occurred, changing the normal cultivar Nongken 58 to PSGMS Nongken 58S. Large amounts of RAPD and AFLP analyses were also conducted for the fine mapping of the pms3 genomic region, which resulted in 4 molecular markers linked to pms3. Although these markers somewhat increased the marker density of this region, the pms3 locus is still located in a marker-sparse region.
文摘A series of naphthylmethyl polyethylenepolyamine have been synthesized in this work.Its complexation with zinc salts in different solvents and the type of formation of the complex were investigated by means of fluorescence spectra.The results showed that naphthylmethyl polyethylenepolyamine is a good fluorescence chemical sensor for the testing of foreign zinc ion.A 1:2 stoichiometric complex was found in the solution of compound 3 with zinc acetate.But a 1:1 complex was formed when it reacted with zinc chloride in solution. An obvious excimer emission could be observed in the fluorescence spectrum of compound 3 with zinc chloride.
