摘要
【目的】分析匍匐型花生种质资源的遗传多样性,为挖掘花生资源中的有利基因提供参考。【方法】统计分析67份匍匐型花生质量性状和农艺性状的遗传参数,利用近红外光谱法对参试材料品质进行测定。【结果】在6个质量性状中,遗传多样性指数变幅在0.08~1.14,在11个数量性状中,总分枝数的遗传多样性指数最低,为3.55,单株产量和百仁重的遗传多样性指数最高,均为4.20。总分枝数的变异系数最大,为46.40%。前4个主成分的累计贡献率为70.30%。将67份供试材料聚为三类,第Ⅰ类群蛋白质、含油量及亚油酸含量处于较高水平,第Ⅱ类群整体性状指标良好,特别是平均单株产量高达77.01g,第Ⅲ类群的油酸含量最高。【结论】67份匍匐型花生种质资源具有丰富的遗传多样性,农艺性状改良潜力较大。
【Objective】Germplasm resources are the material basis of peanut breeding,so this project intends to analyze genetic diversity of creeping peanut germplasm resources in order to provide reference information for mining favorable genes in representative peanut resources.【Methods】The genetic parameters 67 creeping peanut of grading traits and agronomic traits were analyzed,and the quality of the tested materials was analyzed by near infrared spectroscopy.【Results】The genetic diversity index ranged from 0.08 to 1.14,and among the 11 quantitative traits,the genetic diversity index of the total number of branches was the lowest(3.55),and the genetic diversity index of single plant yield and hundred kernel weight was the highest(4.20).The coefficient of variation of the total number of branches was the largest,which was 46.4%.The cumulative contribution rate of the first four principal components of agronomic traits and quality traits was 70.30%.67 tested materials were grouped into three groups.The protein,oil content and linoleic acid content of the first group were at a high level.The overall traits of the second group were good,especially the average yield per plant was as high as 77.01g,and the oleic acid content of the third group was the highest.【Conclusion】The germplasm resources of 67 creeping peanuts have rich diversity,and the potential for improvement of agronomic traits is huge.
作者
汪天玲
侯献飞
施俊杰
孙全喜
贾东海
顾元国
单世华
苗昊翠
李强
Wang Tianling;Hou Xianfei;Shi Junjie;Sun Quanxi;Jia Donghai;Gu Yuanguo;Shan Shihua;Miao Haocui;Li Qiang(Institute of Crop Variety Resources,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Institute of Economic Crops,Xinjiang Academy of Agricultural Sciences,Urumqi 830091;Shandong Peanut ResearchIn stitute,Qingdao Shandong 266100,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2024年第1期42-54,共13页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区重大科技专项“油料作物种质资源收集与优异基因挖掘关键技术研究”(2022A03004-4)
新疆维吾尔自治区天山英才青年科技拔尖人才项目(2022TSYCCX0062)
新疆油料产业技术体系(XJARS-05)
财政部和农业农村部:国家现代农业产业技术体系(CARS-13)。
关键词
匍匐型花生
种质资源
遗传多样性指数
差异性分析
聚类分析
creeping peanuts
germplasm resources
genetic diversity index
difference analysis
clustering
