SHENG Yunyan,CHEN Kenong,JIAO Shiqi,et al.Genetic Inheritance Analysis on Melon Fruit Mass in F2 Generation[J].Northern Horticulture,2016,40(07):9-12.[doi:10.11937/bfyy.201607003]
甜瓜F2代群体果实性状的遗传分析
- Title:
- Genetic Inheritance Analysis on Melon Fruit Mass in F2 Generation
- Keywords:
- melon; single fruit weight; fruit thickness; fruit color; major plus polygene; inheritance analysis
- 文献标志码:
- A
- 摘要:
- 以果实性状差异较大的来源于美国的厚皮甜瓜ms-5和黑龙江省薄皮甜瓜HM-1为亲本，构建P1、P2、F1和F2群体，采用植物数量性状主基因-多基因混合模型对甜瓜果实单果重、果肉厚度和果肉颜色进行遗传分析。结果表明：单果重受到2对加性-显性多基因模型控制；果肉厚度受到1对主基因控制；果肉颜色受到2对加性-显性-上位效应多基因控制。主基因在F2代群体中遗传率分别为7379%、7390%、8885%。控制这3个性状的遗传率在F2代中表现较高，说明适合早代进行选择，受环境影响小。
- Abstract:
- Two parental lines which were ms-5 from American thickness peel melon and Chinese thin peel melon HM-1 were used to cross P1,P2,F1 and F2 generation.Using mixed major gene plus polygene inheritance model to investigate the inheritance of fruit mass.The results showed single fruit weight was controlled by two pairs of additive-dominant major gene model，fruit thickness was controlled by one major gene model and fruit color was controlled by two major additive-dominant-epistatic polygene model effect.And the habitability of major genes in F2 population were estimated as 73.79%，73.90%，88.85%，respectively.It indicated that fruit mass were more suitable to conduct selection in early generation as less influence by environment.
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备注/Memo
第一作者简介：盛云燕（1979-），女，博士，副教授，研究方向为甜瓜分子育种。E-mail：shengyunyan12345@163.com.基金项目：〖JP2〗国家自然基金资助项目（31401892）；教育部归国留学科研资助项目；黑龙江八一农垦大学博士科研启动资助项目〖JP3〗（2031011003）。