Tolerant Mechanism and Chromosome Location of Gene Controlling Sprouting Tolerance in Aegilops Tauschii Cosson |
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| Authors: | LAN Xiu-Jin ZHENG You-liang LIU Deng-cai WEI Yu-Ming YAN Ze-hong ZHOU Yong-hong |
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| Institution: | Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830 |
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| Abstract: | An artificial amphiploid RSP (2n = 42, AABBDD) between tetraploid landrace Ailanmai(Triticum turgidum L., 2n= 28, AABB) and Aegilops tauschii (DD, 2n = 14) expressed high tolerance to preharvest sprouting which derived from Ae. tauschii. Tolerance to preharvest sprouting of RSP was examined by four ways in six varying periods after anthesis. The germination percentages of preharvest intact spikes were only 6.06 % in its high peak period of germination. Its tolerance was mainly decided by the seed a recessive trait which was controlled by one gene, located on chromosome 2D. |
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| Keywords: | Aegilops tauschii Breeding Wheat Tolerance to sprouting Gene Location |
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