Each district experiment considers to make clear, the space is lured change breeding is collect the hi-tech breeding new approach of space technology and union of photograph of agricultural breeding technology, have accelerate breeding process apparently, shorten breeding is periodic, improve the function such as breeding benefit.
2, the space is lured change breeding mechanism considers to gain new headway. The conference thinks, the space is lured change breeding mechanism considered to obtain welcome progress. The method that Sichuan saves institute of technology of nucleus of technology of biology of agricultural academy of sciences to use AFLP element to label is lured to paddy space become choppy body and this close undertaking that gene group contrast is analysed, find out extract of DNA of sex of choppy system much condition, through a series of bringing content is chosen, found DNA of sex of 5 many condition belt, research of function of gene of choppy to beginning body and paddy hybrid advantage are used have important sense. Institute of paddy of academy of sciences of Guangdong province agriculture changes through earthing up the space of short 64S to lure to paddy effect research, the mutation individual plant that acquired post comparing to earth up short 64S to increase apparently from inside SP3 generation is, undertake to individual plant of 10 SP3 mutation SSR is analysed, its mutation frequency is 18.97%-36.21% , it is on average 28.97% . The data of Miaowei of Chinese rose tube that 4 airship carry heredity of the Chinese Academy of Sciences and the bramble tube young plant that development biology studies to so 3 airship carry China and China, research discovers cell of body of bead of bramble and appearance of cell of lamina of seedling of Chinese rose tube, chloroplast, line exceeds small structure to produce bigger change. The SOD in lamina of seedling of tube of the Chinese rose after the space is handled, CAT and POD3 are planted the active with enzymatic protection all has increase, third the content of 2 aldehyde drops. The bramble after the space is handled and ground contrast, chinese rose and ground contrast undertake RAPD element mark detect, all enlarge adds area of many condition sex, dimensional condition causes the change on plant DNA level likely. They still use the tomato seed territory that station of space of Russia peace sign carries 6 years to cultivate, undertake RAPD detects, the result makes clear: 40 make thing randomly in, 31 enlarge that make thing add DNA belt consistent, the DNA area that 9 enlarge that make thing add indicate much condition gender. The tomato that the space carries and contrast compare enlarge to add belt all appear difference, and the belt between the tomato that the space carries different also. Contrast with the ground quite, the DNA mutation rate of 5 plant in the tomato that the space carries is the oldest, degree of 3 plant mutation is the smallest. Conclusion is long the mutation that dimensional flight can cause level of DNA of tomato heredity material to go up.
Previous 1 2 34 5 6 Next