摘要
以新疆厚皮甜瓜‘76-2’的60Co-γ射线诱变酸味突变自交系和‘黄皮脆’形成的P1、P2、F1与F2为试验材料,通过4个世代联合分析法研究果实中糖含量、酸含量和糖酸比的遗传特点。结果表明:酸味突变自交系ב黄皮脆’组合的糖含量性状遗传受两对等加性主基因+加性显性多基因模型(E-4)控制,主基因遗传率为88.8%,多基因遗传率为6.94%;酸含量性状遗传受一对加性—显性主基因+加性—显性上位性多基因(D-0)模型控制,主基因遗传率为26.68%,多基因遗传率为72.77%;糖酸比性状遗传受两对加性—显性—上位性+加性—显性多基因混合遗传模型(E-1)控制,主基因遗传率为82.86%,多基因遗传率为16.02%。
Four generations of P1, P2, F1 and F2 were used to study the inheritance of melon sugar content, sour content and sugar acid ratio traits in mutation inbred line with sour taste （76-2 by 60Co-γ irradiation） and ‘Huangpicui＇ by joint analysis method of multiple generations. The results showed that the sugar content was controlled by two pairs of equal additive major genes plus additive-dominant polygene （ E- 4 model）. The major gene heritability is 88.8% , the polygene heritability is 6.94%. The inheritance of sour content fitted one pair of additive dominance major gene plus additive dominance-epitasis polygene （ D - 0 model）. The major gene heritability is 26.68% , the polygene heritability is 72. 77%. Sugar acid ratio trait fitted two pairs of additive-dominance-epitasis major genes plus additive-dominant polygene （ E - 1 model）. The major gene heritability is 82. 86% ; The polygene heritability is 16. 02%.
出处
《园艺学报》
CAS
CSCD
北大核心
2009年第7期989-996,共8页
Acta Horticulturae Sinica
基金
国家现代农业产业技术体系建设专项项目
国家‘十一五’科技支撑计划项目(2006BAD01A7-6-04)
关键词
甜瓜
糖酸比
遗传
melon
sugar acid ratio
genetic
