Molecular marker of rice number of grain per ear gene NOG1 and application thereof

The invention belongs to the field of rice molecular breeding, and particularly relates to a molecular marker of rice number of grain per ear gene NOG1 and application thereof. The rice number of grain per ear gene NOG1 is proliferated through a primer with the nucleotide sequence as shown in SEQ ID NO: 1-2 to obtain the nucleotide sequence shown as SEQ ID NO: 3. The marker is designed aiming at the function variation sequence of NOG1 gene and is a gene function marker, so that no inheritance exchange occurs, and the marker does not need to be subjected to phenotype identification. The beneficial alleles of NOG1 locus in the rice can be accurately and efficiently identified by utilizing the molecular marker, and the molecular marker can be widely applied to assistant selective breeding ofrice and allele molecular identification of NOG1 locus in the rice. 本发明属于水稻分子育种领域，具体涉及种水稻每穗粒数基因NOG1的分子标记及其应用，通过核苷酸序列如SEQ ID NO：1-2所示的引物扩增水稻每穗粒数基因NOG1得到或如SEQ ID NO：3所示的核苷酸序列；上述的标记是针对NOG1基因的功能变异序列设计的，为基因功能标记，故不存在遗传交换，不需要作表型鉴定，利