普通油茶与香花油茶杂交F_(1)代叶片表型性状遗传多样性研究  

Genetic Diversity of Leaf Phenotypic Traits in Progeny of Camellia oleifera and Camellia osmantha

作　　者：梁斌[1] 张幸 叶维军 李月娟[1] 蔡娅 王东雪[1] LIANG Bin;ZHANG Xing;YE Weijun;LI Yuejuan;CAI Ya;WANG Dongxue(Guangxi Forestry Research Institute/Guangxi Forestry Laboratory/Improved Variety and Cultivation Innovation Center of Oil-tea Camellia in Guangxi/Guangxi Key Laboratory of Special Non-wood Forests Cultivation and Utilization,Nanning,Guangxi 530002;Cenxi City Soft-branch Oil-tea Seed Orchard,Cenxi,Guangxi 543200)

机构地区：[1]广西壮族自治区林业科学研究院,广西林业实验室,广西油茶良种与栽培技术创新中心,广西特色经济林培育与利用重点实验室,广西南宁530002 [2]岑溪市软枝油茶种子园,广西岑溪543200

出　　处：《北方园艺》2025年第2期23-29,共7页Northern Horticulture

基　　金：广西创新驱动发展专项资助项目(桂科AA20302021-1);广西科技基地和人才专项资助项目(桂科AD23049004);广西特色经济林培育与利用重点实验室自主资助项目(JA-22-02-01)。

摘　　要：以‘岑软24号’ב香花油茶109号’杂交F_(1)代小苗为试材,采用频率分析、相关性分析和聚类分析等统计学方法,研究F_(1)代145个单株的叶片表型多样性,以期为杂交子代早期鉴定和种质筛选提供参考依据。结果表明:杂交F_(1)代9个叶片表型性状存在不同程度的变异,变异系数范围在8.77%~22.80%。9个叶片表型性状在F_(1)代的中亲优势率为-18.83%~77.14%,超亲优势率为-33.19%~62.75%,其中叶长、叶宽、叶周长、叶面积、叶绿素参考值和蓝色成分值的遗传传递力超过100%。36对相关性分析中,极显著正相关10对、极显著负相关5对、显著正相关1对、显著负相关1对。系统聚类将F_(1)代的145个单株分为4个类群,聚类结果充分反映了各类群的特征。Taking seedlings of hybrid F_(1)generation of‘Cenruan 24’and‘Xianghua Oil Tea 109’as test materials,statistical methods such as frequency analysis,correlation analysis,and cluster analysis were used to study on the leaf phenotypic diversity of 145individual plants in the F_(1)generation,in order to lay the foundation for early identification and germplasm screening of hybrid offspring.The results showed that the phenotypic traits of 9leaves of F_(1)hybrid generation had different degrees of variation,and the coefficient of variation ranged from 8.77%to 22.80%.In F_(1)generation,the advantage rates of the nine leaf phenotypy traits ranged from-18.83%to 77.14%,and heterobletiosis rates ranged from-33.19%to 62.75%.The genetic transmission of leaf length,leaf width,leaf circumference,leaf area,chlorophyll reference value and blue component value exceeded 100%.Among the 36pairs of correlation analysis,there were 10pairs of extremely significant positive correlation,5 pairs of extremely significant negative correlation,1 pair of significant positive correlation and 1pair of significant negative correlation.The 145single plants of F_(1)generation were divided into 4 groups by systematic clustering,and the clustering results fully reflected the characteristics of each group.

关 键 词：油茶 种间杂交 叶表型 杂种优势 遗传多样性 

分 类 号：S794.4[农业科学—林木遗传育种]