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棉花学报  2015 

EPSPS外源基因对陆地棉农艺性状和纤维品质的影响

DOI: 10.11963/issn.1002-7807.201505014, PP. 489-493

Keywords: 棉花,EPSPS,外源基因,农艺性状,纤维品质

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Abstract:

以G6-1至G6-19等19个转基因抗草甘膦除草剂棉花种质为材料,以其非转基因背景亲本中棉所49为对照,研究EPSPS外源基因导入对陆地棉农艺性状和纤维品质的影响,结果表明外源基因的导入对棉花纤维上半部平均长度、马克隆值、断裂伸长率和断裂比强度等品质性状有显著影响;对于棉花衣分和铃重等农艺性状亦有显著的影响,衣分变异范围为30.5%~42.7%,T1和T2相关性分析表明衣分的变异为可遗传性变异,铃重最高为6.5g,最低为4.6g,两者相差40%。因此,转基因棉花育种研究不仅要注重目标性状的转育,还要注重非目标性状的筛选。

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