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18个樱桃番茄自交系数量性状的配合力和遗传力分析
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引用本文:赵宇飞,王晓敏,袁东升,刘珮君,郑福顺,胡新华,付金军,高艳明,李建设.18个樱桃番茄自交系数量性状的配合力和遗传力分析[J].西北农业学报,2019,28(12):2011~2018
DOI:10.7606/j.issn.1004-1389.2019.12.013
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作者单位
赵宇飞,王晓敏,袁东升,刘珮君,郑福顺,胡新华,付金军,高艳明,李建设 (1.宁夏大学 农学院银川 7500212.宁夏设施园艺(宁夏大学)技术创新中心银川 7500213.宁夏现代设施园艺工程技术研究中心银川 7500214.宁夏优势特色作物现代分子育种重点实验室银川 750021 5.宁夏巨丰种苗有限责任公司银川 750021) 
基金项目:宁夏回族自治区自然科学基金(NZ15021);宁夏回族自治区农业育种专项(NXNYYZ20150303)。
中文摘要:优异番茄自交系是品种选育的基础,配合力和遗传力是评价自交系育种价值的重要指标。以18个樱桃番茄自交系为材料,采用NC Ⅱ不完全双列杂交,配制成56个组合,对单花序果数、单果质量、果实纵径、果实横径、果形指数、果梗洼大小、硬度、可溶性固形物质量分数及果肉厚共9个数量性状进行配合力和遗传力的分析。结果表明:母本60021、60803、60805和父本60450、60849的一般配合力相对效应值较高;60283×60447和60803×60450的特殊配合力相对效应值最高;9个数量性状均受基因的加性效应控制,可以稳定遗传后代;单果质量、果实纵径、果梗洼大小、果肉厚的遗传力均较高,受环境影响较小,早期世代进行选择,效果明显。本研究可为宁夏地区樱桃番茄亲本的选择、优势杂交组合配制及新品种的选育提供参考依据。
中文关键词:樱桃番茄  数量性状  配合力  遗传力
 
Combining Ability and Heredity of Quantitative Traits with 18 Inbred Lines of Cherry Tomato
Abstract:Excellent tomato inbred lines are the basis of variety breeding,the important indexes of evaluating the breeding value of inbred lines are combining ability and heredity.In this study,56 combinations of 18 cherry tomato inbred lines were adopted by NC Ⅱ incomplete bi-serial hybridization,combining ability and heredity of 9 quantitative traits,such as the single inflorescence number,single fruit mass,vertical diameter,transverse diameter,fruit shape index,size of corky area around pedicel scar,hardness,soluble solids mass fraction,flesh thickness were analyzed.The results showed that the female parents 60021,60803,60805 and the male parents 60450 and 60849 were higher general combining ability,the combinations of 60283×60447 and 60803×60450 had the highest relative effect value of the special combining ability.All nine quantitative traits were controlled by additive gene effect,which could be passed on steadily to offspring.The single fruit mass,vertical diameter,size of corky area around pedicel scar and the flesh thickness had higher heredity,and less affected by the environment,and early selection will be effective.This study provides reference for the parents’ selection,dominant hybrid combinations preparation and varieties breeding of cherry tomato in Ningxia province.
keywords:Cherry tomato  Quantitative trait  Combining ability  Heredity
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