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《Journal of Nuclear Agricultural Sciences》 2006-01
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PHENOTYPIC CHARACTERIZATION OF PARTIAL GENETIC MATERIAL TRANSFER IN F_3 AND BC_1 HYBRIDS DERIVED FROM THE GENERIC CROSS OF SORGHUM AND UPLAND RICE

ZHAO Feng-wu~(1) LI Hui-min~2 SONG Cong-min~1 LIU Dong-cheng~2 ZHANG Ai-min~2 (1.Dry Farming Institute,Hebei Academy of Agriculture and Forestry Sciences,Hengshui,Hebei,053000;2.The State Key Laboratory of Plant Cell and Chromosome Engineering/Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing 100101)  
A generic hybridization of both cross and backcross has been made between sorghum(S.bicolor) and upland rice(O.sativa).Two new characters,tip awn and yellow stigma not observed in parents,presented in F_1 and could be inherited stably to F_2,F_3 and BC_1 generation.Wild segregation did happen on the characters of plant height(PH),head length(HL),head type(HT) and tillers/plant(TP) and plants with white color seeds same to the male were also observed in F_3.There was no difference for the characters of PH and TP between BC_1 and the male confirmed by t-test,indicating the obvious effect of backcross on them.Multi-ovaries were also recorded in the generation of BC_1.Results proved that the cross and backcross could induce variation and could generate new characters,being effective to develop germplasm with short stalk,high quality and multiple ovaries.Main characteristics of offspring similar to the female and a few characters similar to the male implied that only partial male's genetic material transferred to progenies in the cross.
【Fund】: 国家自然科学基金(30471058);; 河北省省校合作基金(042201109)资助项目
【CateGory Index】: S514;S511.6
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