两个郑58细胞质雄性不育系的鉴定与分析  

Identification and Analysis of Two Cytoplasmic Male Sterile Lines of Zheng58

作　　者：王久红 焦东宝 赵永锋 郭晋杰 黄亚群 陈景堂 祝丽英 WANG Jiu-hong;JIAO Dong-bao;ZHAO Yong-feng;GUO Jin-jie;HUANG Ya-qun;CHEN Jing-tang;ZHU Li-ying(College of Agronomy,Hebei Agricultural University/Hebei Sub-center of National Maize Improvement Center/Key Laboratory for Crop Germplasm Resources of Hebei,Baoding 071001,China)

机构地区：[1]河北农业大学农学院/国家玉米改良中心河北分中心/河北省作物种质资源实验室,河北保定071001

出　　处：《玉米科学》2022年第5期1-6,共6页Journal of Maize Sciences

基　　金：河北省重点研发计划项目(21326325D)。

摘　　要：以雄性不育系郑58cms-M084和郑58cms-Q1261为材料,鉴定其育性稳定性和胞质类型,观察小孢子败育过程和不育性的遗传特性,并对不育系的产量和品质相关性状进行分析。结果表明,两个不育系在不同生态环境下均表现为花药不外露,干瘪皱缩,无花粉粒,属于CMS-S型胞质不育类型。其小孢子均在单核晚期至双核期开始出现崩溃解体现象,到成熟花粉期完全降解消失。两个不育系的穗位高极显著低于郑58,郑58cms-Q1261子粒蛋白质含量极显著高于郑58,其他性状与郑58均无显著差异,表明郑58cms-M084和郑58cms-Q1261均为CMS-S型不育系,不育性状稳定、无明显不良胞质效应,具有一定的利用价值。Two male sterile lines Zheng58cms-M084,Zheng58cms-Q1261 were identified for their fertility stability,cytoplasmic type,microspore abortion and the genetic characteristics of sterility.Meanwhile yield and quality related traits of male sterile lines were analyzed.The results showed that Zheng58cms-M084 and Zheng58cms-Q1261 had stable sterility,and their anthers were shrivelled,thin and not exposed.Their cytoplasm type was classified into CMS-S.The microspores of the two sterile lines began to disintegrate during the late mononuclear stage to the binuclear stage and completely degraded at the mature pollen stage.The ear height of the two sterile lines was significantly lower than that of Zheng58,and the kernel protein content of Zheng58cms-Q1261 was significantly higher than that of Zheng58,while there was no significant difference in other traits.The results indicated that Zheng58cms-M084 and Zheng58cms-Q1261,which belonged to CMS-S with stable sterility,no obvious adverse cytoplasmic effect,have utilization value in production.

关 键 词：玉米 细胞质雄性不育 育性鉴定 胞质分类 

分 类 号：S513.032[农业科学—作物学]