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为了探讨小麦TaCRE1基因与次生根、分蘖的关系,本研究选用40份农艺性状差异较大的小麦品种,检测和鉴定该基因等位变异,并分析其对不同时期的小麦次生根、分蘖的影响。结果表明,冬前及拔节期次生根数和分蘖数与最终有效分蘖相关性较好。TaCRE1基因等位变异对冬前及拔节期次生根和分蘖数影响显著,具有B型等位基因的品种的次生根、分蘖数的均值显著高于具有A型等位基因品种。相关分析结果表明,TaCRE1等位基因变异与冬前、拔节期次生根数、分蘖数以及有效分蘖数均值都呈显著或极显著正相关,证实TaCRE1基因等位变异对上述生长阶段次生根、分蘖发育及有效分蘖作用较大。
In order to investigate the relationship between wheat TaCRE1 gene and secondary root and tillering, 40 wheat cultivars with different agronomic traits were selected to detect and identify the allelic variation of this gene and its effects on secondary root and tillering of wheat in different periods . The results showed that the correlation between secondary root number and tillering number and final effective tillering was good before winter and jointing stage. The allelic variation of TaCRE1 gene had a significant effect on the number of secondary roots and tillers in winter and jointing stages. The average number of secondary roots and tillers in cultivars with type B alleles was significantly higher than those with type A alleles. Correlation analysis showed that the TaCRE1 allele had a significant or highly significant positive correlation with the number of secondary root, tiller number and effective tiller number before winter and jointing stages. It was confirmed that allelic variation of TaCRE1 had no significant effect on the secondary root, tillering Development and effective tiller effect.