Tolerant Mechanism and Chromosome Location of Gene Controlling Sprouting Tolerance in Aegilops Tauschii Cosson
Tolerant Mechanism and Chromosome Location of Gene Controlling Sprouting Tolerance in Aegilops Tauschii Cosson
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发表时间：
2002
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通讯作者：
Lan;Xiu-jin;Zheng;You-liang;Liu;Deng-cai;Wei;Yu-ming;Yan;Ze-hong;Zhou;Yong-hong
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作者：
Lan;Xiu-jin;Zheng;You-liang;Liu;Deng-cai;Wei;Yu-ming;Yan;Ze-hong;Zhou;Yong-hong
利用四倍体地方品种矮兰麦（Triticum turgidum L.，2n= 28，AABB）和节节麦（Aegllops tauschii，DD，2n = 14）对来自山羊草的穗发芽表现出较强的耐受性。tauschii在花后6个不同时期用4种方法测定了RSP对穗发芽的耐性。采前完整穗在其萌发高峰期的发芽率仅为6.06%。种子的休眠性是决定其耐性的主要因素。结果表明，来源于Ae.节节麦为隐性遗传，受位于2D染色体上的单基因控制。
An artificial amphiploid RSP (2n = 42, AABBDD) between tetraploid landrace Ailanmai (Triticum turgidum L., 2n= 28, AABB) and Aegllops 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 dormancy. It was showed that the tolerance to sprouting in ' RSP' derived from Ae. tauschii was inherited as a recessive trait which was controlled by one gene, located on chromosome 2D.