DONG Xiujuan,YANG Xiaoping,DU Wei,et al.Analysis of Heredity of Pear Fruit F1 Generation Quality Traits[J].Northern Horticulture,2022,(07):23-29.[doi:10.11937/bfyy.20213745]
梨F1代果实品质性状遗传规律分析
- Title:
- Analysis of Heredity of Pear Fruit F1 Generation Quality Traits
- Keywords:
- Chinese pear; hybrid population F1; genetic rule; correlation
- 文献标志码:
- A
- 摘要:
- 以‘鄂梨2号’‘华梨2号’及其杂交F1代为试材，采用相关性分析以及主成分分析等方法，研究了‘鄂梨2号’与‘华梨2号’对其杂交后代单果质量、果实硬度和果梗粗度等12个果实品质性状遗传的影响，以期为梨遗传育种提供参考依据。结果表明：杂交F1代中单果质量、果实纵径、果实横径等多个果实性状为偏低遗传，果实硬度、可溶性糖含量、可滴定酸含量为超亲遗传。可滴定酸含量变异系数和遗传传递力最大，分别为39.78%和115.91%。果实各性状之间相关性较高，单果质量与果实横径相关性最高。主成分分析把12个果实性状归为5个主成分，累积贡献率为73.197%，‘鄂梨2号’与‘华梨2号’杂交后代果实有向小果遗传的趋势，果梗粗度和单果质量与果实的品质紧密相关。
- Abstract:
- ‘Eli No.2’ and ‘Huali No.2’ were used as experimental materials,the correlation analysis and principal analysis were used，the effects of ‘Eli No.2’ and ‘Huali No.2’ on the inheritance of 12 fruit quality traits such as fruit weight，fruit firmness and fruit stalk thickness were studied，in order to provide reference for pear genetics and breeding.The results showed that the heritability level of several traits such as single fruit weight，fruit longitudinal diameter and transverse diameter were low inheritance，while the heritability level of fruit firmness，soluble sugar content and titratable acid content were super high.The coefficient of variation and genetic transmitting ability of titratable acid content were the highest，which were 39.78% and 115.91%，respectively.The correlation between single fruit traits was high，with the highest correlation between fruit weight and fruit transverce diameter was the highest.The principal component analysis grouped the 12 fruit traits into 5 principal components，with a cumulative contribution rate was 73.197%.Therefore，the fruit of ‘Eli No.2’ and ‘Huali No.2’ hybrid had a tendency to inherit small fruit，and fruit stalk thickness and single fruit weight were closely related to fruit quality.
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备注/Memo
第一作者简介：董秀娟（1997-），女，硕士，现主要从事砂梨育种等研究工作。E-mail：2209754143@qq.com.责任作者：胡红菊（1966-），女，本科，研究员，现主要从事砂梨栽培与育种等研究工作。E-mail：hongjuhu@sina.com.基金项目：〖JP3〗国家重点研发计划资助项目（2019YFD1001404）；〖JP〗农业农村部物种品种资源保护费资助项目（19200397）；国家梨产业技术体系资助项目（CARS-28）。收稿日期：2021-09-08