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当前位置: 首页 > 文章 > 云南割手密创新种质F2的主成分聚类分析及其评价 植物遗传资源学报 2019 (3)
Position: Home > Articles > 云南割手密创新种质F2的主成分聚类分析及其评价 Journal of Plant Genetic Resources 2019 (3)

云南割手密创新种质F2的主成分聚类分析及其评价

作  者：
俞华先;田春艳;经艳芬;安汝东;郎荣斌;边芯;董立华;周清明;杨李和;孙有芳;桃联安
单  位：
云南省农业科学院甘蔗研究所瑞丽育种站
关键词：
割手密;创新种质;相关分析;主成分分析;聚类分析
摘  要：
云南割手密是甘蔗育种中比较宝贵的野生种质资源.对68份云南割手密F2创新种质材料的9个主要工农艺性状进行主成分分析,并以前3个主成分为基础,分别作聚类分析和二维排序图.结果表明:68份云南割手密F2创新种质的变异系数为10.57%~35.30%,11月份理论含糖量和单产的变异系数超过30%,说明11月份理论含糖量和单产性状的变异潜力较高.主成分分析结果表明,单茎重产量因子、锤度糖分因子和丛有效茎含糖量这3个主因子提供了原始性状80.8292%的信息;在欧氏距离为10.00处将68份材料分为4类,各个类群具有不同的特点,在甘蔗杂交育种上可以根据不同类群的特点加以利用;二维排序表明云割F211-50、云割F211-56、云割F211-40、云割F211-66、云割F211-77、云割F211-10、云割F211-19、云割F211-85、云割F211-45、云割F211-37、云割F211-25、云割F211-23、云割F211-18等13份材料的3个主成分构成因子协调性最好,可在育种中加以利用.
作  者：
YU Hua-xian;TIAN Chun-yan;JING Yan-fen;AN Ru-dong;LANG Rong-bin;Bian Xin;DONG Li-hua;ZHOU Qing-ming;YANG Li-he;SUN You-fang;TAO Lian-an;Ruili Breeding Station,Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences;
单  位：
YU Hua-xian%TIAN Chun-yan%JING Yan-fen%AN Ru-dong%LANG Rong-bin%Bian Xin%DONG Li-hua%ZHOU Qing-ming%YANG Li-he%SUN You-fang%TAO Lian-an%Ruili Breeding Station,Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences
关键词：
Saccharum spontaneum L.;;germplasm innovation;;correlation analysis;;principal component;;cluster analysis
摘  要：
Yunnan Saccharum spontaneum L. serves as valuable wild germplasm resource can be used in sugarcane breeding. The quantitative characters of 68 F2 Yunnan Saccharum spontaneum L. were investigated using the principal of numerical classi?cation,and the PCA(de?ne) of 10 quantitative characters were analyzed.Scatter plot was drawn based on the ?rst 3 principal components(PC) and clustering analysis was carried out based on the genetic coef?cients. The results showed that the coef?cient variation of the quantitative characters ranged from 10.57% to 35.30%. The theoretical sugar content and yield in November had a high coef?cient of variation over 30%,indicating a high variation potential. Principle component analysis indicated that the ?rst 3 PC accounted for 80.8292% of variation among the materials,followed by single stem weight yield factor,brix sugar factor and cluster effective stem sugar yield factor. These 68 innovative materials could be divided into 4 categories at D=10.00. Each group had different characteristics,which could be referred for castor breeding with different purposes. The scatter plot of the former three principal components indicated the coef?cients of the ?rst three PCs were higher in YGF211-50,YGF211-56,YGF211-40,YGF211-66,YGF211-77,YGF211-10,YGF211-19,YGF211-85,YGF211-45,YGF211-37,YGF211-25,YGF211-23,YGF211-18,and these accessions could be used in the breeding.

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