基于形态学标记的茄子种质资源遗传多样性分析  

Analysis of Genetic Diversity of Eggplant Germplasm Resources Based on Morphological Markers

作　　者：郑于莉 刘燕 姚慧静 周刚 袁鹤 张新杰 ZHENG Yu-li;LIU Yan;YAO Hui-jing(Baotou Science and Technology Research Institute of Agriculture and Animal Husbandry,Baotou,Inner Mongolia 014013)

机构地区：[1]包头市农牧科学技术研究所,内蒙古包头014013

出　　处：《安徽农业科学》2021年第21期128-132,共5页Journal of Anhui Agricultural Sciences

基　　金：内蒙古农牧业科学院青年创新基金(2018QNJJN12)。

摘　　要：为拓宽茄子遗传基础,加快选育适合内蒙古地区种植的茄子新品种,对65份茄子种质资源的20个形态学性状进行遗传多样性分析,结果表明:20个性状在供试材料之间存在丰富的遗传变异,变异范围在16.40%~102.68%,果形、单果重、果实纵径、果实横径、果形指数等与果实有关的性状均表现出较高的遗传变异;果皮色、果萼颜色、首花节位与茎色呈极显著正相关,果形与果肉色、果顶形状呈极显著正相关;单果重与果顶形状、果形呈极显著负相关;聚类结果较分散,大致可分为5个大类9个亚类,近缘野生茄和栽培茄与其近缘野生茄划分明显。In order to broaden the genetic basis of eggplant and speed up the breeding of new eggplant varieties suitable for planting in Inner Mongolia,this study used 65 eggplant germplasm resources as test materials to analyze the genetic diversity of 20 morphological traits.The results showed that there are abundant genetic variation among the tested materials.The variation range is between 16.40%and 102.68%.Fruit-related traits such as fruit shape,single fruit weight,fruit length,fruit width,and fruit shape index show high genetic variation;peel color,calyx color,first flower node position and stem color are extremely significant positive correlation,fruit shape,fruit flesh color and the shape of the top of the fruit is very significantly positively correlated;the weight of a single fruit is highly negatively correlated with the shape of the top and the shape of the fruit;the clustering results are relatively scattered and can be roughly divided into 5 categories and 9 subcategories.There is a clear distinction between wild eggplant and cultivated eggplant and its relative wild eggplant.

关 键 词：茄子 种质资源 形态学性状 遗传多样性 

分 类 号：S602.4[农业科学—园艺学]