[1]邵初阳,何晓兰,徐照龙,等.甜高粱种质资源多样性及主要农艺参数聚类分析[J].江苏农业学报,2015,(05):984-994.[doi:doi:10.3969/j.issn.1000-4440.2015.05.007]
　SHAO Chu-yang,HE Xiao-lan,XU Zhao-long,et al.Genetic diversity of sweet sorghum germplasm resources and clustering of major agronomical traits[J].,2015,(05):984-994.[doi:doi:10.3969/j.issn.1000-4440.2015.05.007]
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甜高粱种质资源多样性及主要农艺参数聚类分析()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年05期
页码:
984-994
栏目:
遗传育种·生理生化
出版日期:
2015-10-31

文章信息/Info

Title:
Genetic diversity of sweet sorghum germplasm resources and clustering of major agronomical traits
作者:
邵初阳1; 何晓兰2; 徐照龙2; 张大勇2; 黄益洪2; 卫培培2; 许玲2; 刘晓庆2; 郭士伟2; 彭陈2; 葛婷婷2; 王为3
(1.山东农业大学生命科学院,山东泰安271018;2.江苏省农业科学院农业生物技术研究所/江苏省农业生物学重点实验室，江苏南京210014;3.江苏沿海地区农业科学研究所,江苏盐城224002)
Author(s):
SHAO Chu-yang1; HE Xiao-lan2; XU Zhao-long2; ZHANG Da-yong2; HUANG Yi-hong2; WEI Pei-pei2; XU Ling2; LIU Xiao-qing2; GUO Shi-wei2; PENG Chen2; GE Ting-ting2; WANG Wei3
(1.College of Life Science, Shandong Agricultural University, Tai’an 271018, China;2.Institute of Agro-biotechnology, Jiangsu Academy of Agricultural Sciences/ Key Labortory of Agricultural Biology of Jiangsu Province, Nanjing 210014,China;3.Institute of Agricultural Sciences in the Coastal Area of Jiangsu Province, Yancheng 224002, China)
关键词:
甜高粱; 农艺性状; 相关性; 主成分分析; 遗传多样性; 聚类分析
Keywords:
sweet sorghum; agronomic trait; correlation; principal component analysis; genetic diversity; clustering analysis
分类号:
S513.024
DOI:
doi:10.3969/j.issn.1000-4440.2015.05.007
文献标志码:
A
摘要:
对在南京地区种植的88份国内外甜高粱种质资源的株高、茎粗、茎节数、茎秆鲜质量、整株榨汁率、整株锤度及始花期7个主要数量农艺性状进行了调查与测定，并进行了相关性、遗传多样性、主成分分析及聚类分析。这些种质资源各性状变异系数为 22.62%～52.51%，遗传多样性指数为 1.83～2.03。从7个性状中提取出2个主成分进行主成分分析，贡献值分别为64.947%和18.285%。第1主成分与株高、茎粗、茎节数、茎秆鲜质量及始花期的相关性都较高，第2主成分与出汁率和锤度相关系数较高。聚类分析可将88份甜高粱资源分为6个类群，从Ⅱ和Ⅲ类群中可以选出适合密植的早熟中秆材料，如甜选35、甜选37及甜选39等；从Ⅳ和Ⅴ类群中可选出植株高大、锤度高的晚熟材料，如甜选160、宁甜选6及黑穗芦稷等；从Ⅵ类群可以选出生育期适中的材料，如甜选33、甜选61及甜选133等。表明供试的88份甜高粱种质资源具有丰富的遗传多样性。
Abstract:
Seven major agronomic traits, including plant height, stem diameter, node number per stem, plant fresh weight, juice yield per plant, brix and first-flowering date, of eighty-eight domestic and foreign sweet sorghum cultivars planted in Nanjing area, were measured. The correlation, genetic diversity, principal components analysis and clustering were analyzed. The coefficients of variation and genetic diversity index of all agronomic characters ranged from 22.62%-52.51% and 1.83-2.03， respectively. Two principal components (PCs) were extracted from seven agronomic traits by principal component analysis, and their contributions were 64.947% and 18.285%， respectively. PCⅠ showed higher correlations with five agronomic traits of plant height, stem diameter, node number per stem, plant fresh weight and first-flowering date, however, PCⅡ exhibited closer relationships with juice yield per plant and brix. Eighty-eight sweet sorghum cultivars were classified into six groups by clustering analysis. Early maturing cultivars suitable for compact planting were selected from groups Ⅱ and Ⅲ including Tianxuan35, Tianxuan37,Tianxuan39. Cultivars with moderate growth durations were selected from VI group, such as Tianxuan33, Tianxuan61, Tianxuan133. And late-maturing cultivars with higher biomass and brix were selected form groups Ⅳ and Ⅴ, such as Tianxuan160, Ningtianxuan6, Heisuiluji. The results indicated that the genetic diversity was abundant in 88 sweet sorghum germplasms.

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备注/Memo

备注/Memo:
收稿日期：2015-04-23 基金项目：江苏省农业科技自主创新基金项目[CX(14)2001]；江苏省农业科学院优秀科学家计划启动经费 作者简介：邵初阳（1994-），男，山东青岛人，本科，研究方向为植物生物学与生物技术育种。 通讯作者：何晓兰，(E-mail)lanygrass@aliyun.com
更新日期/Last Update: 2015-10-31