镇江地区5个粳稻品种产量因素及穗粒数相关基因差异分析  

Difference Analysis of Yield Factors and Spikelet Number-Related Genes of Five Japonica Rice Varieties in the Zhenjiang Region

作　　者：殷从飞 史培华[1] 张建祥 赵艳岭[1] 崔晓霞 李敏 许金诺 陆建康[2] YIN Cong-fei;SHI Pei-hua;ZHANG Jian-xiang(School of Agronomy and Horticulture,Jiangsu Vocational College of Agriculture and Forestry,Jurong,Jiangsu 212400)

机构地区：[1]江苏农林职业技术学院农学园艺学院,江苏句容212400 [2]江苏中江种业股份有限公司,江苏南京211504

出　　处：《安徽农业科学》2025年第5期14-17,共4页Journal of Anhui Agricultural Sciences

基　　金：江苏省高职院校青年教师企业实践培训资助项目(2023Q-YSJ035);江苏农林职业技术学院校企合作项目(2020kj022,2023kj15);江苏农林职业技术学院亚夫科技创新与服务项目(2023kj01)。

摘　　要：研究镇江地区5个不同品种粳稻在产量及其构成因素上的差异,并分析穗粒数相关基因序列对产量的影响。对镇稻11、宁粳3、宁粳6、武运粳24和武运粳23品种进行田间试验,结果显示,武运粳23在一次枝梗数和穗粒数上表现优异,产量最高。相关性分析显示,参试品种株高与产量呈显著负相关,而一次枝梗数和穗粒数与产量呈显著正相关。基因比较分析结果显示,关键基因DEP1、Ghd7、Gn1a、OsGA20ox1和NOG1在参试品种与高产品种之间存在氨基酸变异,但在参试品种内部无序列差异。5个参试品种中,在镇江地区推广武运粳23能够获得更高的产量效益。We investigated the differences in yield and its component factors among five different Japonica rice varieties in the Zhenjiang re-gion and analyzed the impact of spikelet number related gene sequences on yield.Field experiments were conducted on the varieties of Zhendao 11,Ningjing 3,Ningjing 6,Wuyunjing 24,and Wuyunjing 23.Results showed that Wuyunjing 23 exhibited excellent performance in terms of primary branch number and spikelet number per panicle,yielding the highest production.Correlation analysis revealed that plant height was significantly negatively correlated with yield,while primary branch number and spikelet number per panicle were significantly positively corre-lated with yield.Comparative gene analysis indicated that key genes DEP1,Ghd7,Gn1a,OsGA20ox1,and NOG1 exhibited amino acid varia-tions between the tested varieties and high-yield varieties,but there were no sequence differences within the tested varieties.Among the five tested varieties,Wuyunjing 23 in the Zhenjiang region could achieve higher yield benefits.

关 键 词：粳稻 产量 一次枝梗数 穗粒数 序列比较 

分 类 号：S511.22[农业科学—作物学]