【摘要】 由Wx基因编码的颗粒结合淀粉合成酶控制直链淀粉含量的合成。在Wx基因的 5′端引导区存在一个单核苷酸多态性位点。对 4 2份非糯性的籼稻和粳稻材料的多态性分析结果表明 ,利用分子标记技术可以区分开高直链淀粉含量和中低直链淀粉含量的品种。同时对其在育种实践中的应用进行了探讨更多还原

【Abstract】 The Wx gene encoded the granule-bound starch synthase responsible for the synthesis of amylose in rice A polymorphic single nucleotide at the putative 5′splice site of the Wx leader intron was reported recently The polymorphism was explored using 42 non-waxy Indica and Japonica rice varieties The result showed that the polymorphism could differentiate between higher and lower amylose cultivar The implications of this finding to rice breeding were discussed更多还原