Summary
Some of results from morphological and cytological observations and esterase-isozyme studies of a rice-sorghum hybrid are presented in this paper. There is a great diversity of morphological characters and some special characteristics in the progenies of the hybrids of rice with sorghum. The meiosis of pollen mother cells in the early generations of the hybrid was found to be abnormal. One main band coinciding with one found in sorghum but lacking in rice appeared in the majority of the hybrid lines. This band is characteristic of a are the specificities of the distant hybridization of rice and sorghum, and is rarely observed in the intervariety hybrids or hybrids between subspecies of Oryza sativa, indica and japonica. On the basis of these facts we concluded that the hybrids obtained are true hybrids of rice and sorghum.
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Wu Suhsuen, Wang Jingju (1963) Cytological studies on the intergeneric F1 hybrid between Oryza sativa L. × Pennisetum sp. Acta Bot Sin 11:293–307
Wu SH, Wang Jingju, Sun Jingsan, Sai Qigui (1965) On the fertilization of Oryza sativa L. × Sorghum valgare pers. Acta Bot Sin 13:297–313
Hsia Yungshen, Kao Yucheng, Chiang Yucheng (1964) A preliminary report on the intergeneric crosses between paddy rice and gu. Genet Sin 5:41–58
Zu Deming, Dai Lanfang, Chen Shanbao, Song Xianbin, Duan Xiaolan (1979) Diversity and specific performance of progenies from distant hybridization between rice and sorghum. Acta Genet Sin 6:414–420
Zhou Guangyu, Gong Znenznen, Wang Zifen (1979) The molecular basis of remote hybridization — An evidence of the hypothesis that DNA segments of distantly related plants may be hybridized. Acta Genet Sin 6:405–413
Zhou Guangyu, Zeng Yishen, Yang Wanxia (1980) Molecular basis of remote hybridization — The recombination of sorghum DNA sequences with rice genomes during remote hybridization. Acta Genet Sin 7:119–122
Chen Jingquan, Zhang Yaolong (1980) The breeding and utilization of naked seed rice. Acta Genet Sin 7: 185–188
Shao Qiquan, Wu Chunfa, Jiang Xingcun (1980) Cytological study on naked seed rice. Acta Genet Sin 7:366–369
Tang Xihua, Zhu Zhiping, Huang Qingliu (1981) Some aspects of morphological and physiological characters of “nakedseed” rice. Acta Genet Sin 8:350–355
Wang Chengping, Tang Xihua (1982) A new hybrid genus of Graminae (Poaceae). Acta Phytotax Sin 20:179–181
Zhu Fengsui, Fu Junhua, Li Liancheng, Chen Shanbao (1983) A Cytological study on the intergeneric hybrid between rice and sorghum. Sci Agric Sin 4:26–29
Shen Jianhua, Zhou Guangyu (1983) The reassociation kinetic analyses of the repeated sequence DNA of rice, sorghum and their hybrid. Acta Genet Sin 10:28–35
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Communicated by Hu Han
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Deming, Z., Shanbao, C., Xiaolan, D. et al. Genetic variations in the hybrids of rice (Oryza sativa) and sorghum (Sorghum vulgare). Theoret. Appl. Genetics 70, 542–547 (1985). https://doi.org/10.1007/BF00305988
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DOI: https://doi.org/10.1007/BF00305988