摘要
对华农本地早×宜昌橙的Ｆ１、Ｆ２代杂种，在５个性状上的分离、重组进行了观察分析。结果表明，多胚性受显性基因控制，华农本地早与宜昌橙分别处于显性杂合和隐性纯合状态；种子子叶颜色受一个主基因控制，白色子叶时绿色子叶为显性；嫩梢颜色的遗传基础较为复杂，绿色嫩梢对紫色嫩梢有显性作用；翼叶大小与树体抗寒能力为受多基因控制的数量性状。
The Segregation of five morphological and physiological traits mainly in the F1 andF2 progenies of Huanong Bendiza(Citrus reticulata Blanco)× Ichang papeda(C. ichangensisSwingle)was investigated and analysed.The Results revealed that the polyembryony of ci-trus was copfirmed to be controlled by dominant genes,Huanong Bendizao is dominant he-terozygous,while Ichang papeda is recessive homozygous at these loci;The cotyledon colorof citrus seeds was found to be controlled by one major gene, white color being dominantover green color. The inheritance of young-shoot color is more complicated,with green colorbeing partially dominant over purple color;The winged-petiole size of citrus leaf and thecold-tolerncdof citrus were considered to be quantitative traits.
出处
《中国柑桔》
1994年第4期3-6,共4页
South China Fruits
基金
国家自然科学基金
关键词
华农本地早
宜昌澄
杂交后代
性状分离
Huanong Bendizao:Ichang papeda
Progeny
Character segregation
