甘肃省不同居群中国沙棘表型多样性分析
Analysis of phenotypic diversity of Hippophae rhamnoides subsp.sinensis by different populations in Gansu Province
党军 1王艳莉 2田青 3朱珠 2马永龙 1史柠瑞 1石蓉蓉 1李永梅1
作者信息
- 1. 甘肃农业大学林学院,甘肃 兰州 730070
- 2. 甘肃农业大学林学院,甘肃 兰州 730070;甘肃省枸杞无害化栽培工程研究中心,甘肃 兰州 730070
- 3. 甘肃省农业科学院,甘肃 兰州 730070
- 折叠
摘要
[目的]了解甘肃省不同居群野生中国沙棘表型分化程度、变异规律及多样性特征.[方法]以收集的49份甘肃省野生中国沙棘资源为研究对象,对14个表型性状进行了系统分析.[结果]中国沙棘14个表型性状在不同居群间都表现出不同程度的差异,平均变异系数大小为甘南(19.35%)>榆中(18.24%)>通渭(17.11%);叶性状间呈极显著正相关关系(P<0.01),与其他性状相关性不显著(P>0.05),千粒质量与枝长表现为极显著相关关系(P>0.01);主成分分析表明:不同居群中国沙棘表型多样性来源贡献率为:枝长>千粒质量>叶长>果纵径>果横径;聚类分析显示,不同居群间野生沙棘的表型性状在地理分布上具有不连续性.[结论]3个不同居群的野生中国沙棘均具有丰富的表型变异和环境适应能力(CV>10%),具有很大的开发潜力和利用价值.
Abstract
[Objective]To understand the degree of differentiation,variation and diversity characteris-tics of Hippophae rhamnoides subsp.sinensis in different populations in Gansu Province.[Method]Forty-nine wild Chinese H.rhamnoides subsp.sinensis resources collected in Gansu Province were systemati-cally analyzed.[Result]The 14 phenotypic traits of Chinese H.rhamnoides subsp.sinensis showed differ-ent degrees of difference among different populations,and the average coefficient of variation was Gannan(19.35%)>Yuzhong(18.24%)>Tongwei(17.11%).There was a significant positive correlation be-tween leaf traits(P<0.01),but no significant correlation with other traits(P>0.05),and the correlation between 1 000 grain weight and branch length was highly significant(P<0.01).Principal component analy-sis showed that the contribution rate of the source of phenotypic diversity of H.rhamnoides subsp.sinensis in different populations was:branch length>thousand grain weight>leaf length>fruit longitudinal diam-eter>fruit transverse diameter.Cluster analysis showed that the phenotypic traits of wild H.rhamnoides subsp.sinensis among different populations had a discontinuity in geographical distribution.[Cnclusion]The three wild Chinese wild H.rhamnoides subsp.sinensis with different populations have rich phenotypic variation and environmental adaptability(CV>10%),which have great development potential and utiliza-tion value.
关键词
中国沙棘/相关性分析/主成分分析/聚类分析Key words
Hippophae rhamnoides subsp.sinensis/correlation analysis/principal component analysis/cluster analysis引用本文复制引用
基金项目
甘肃省林业和草原局林草科技创新与合作项目(kjcx2021004)
甘肃农业大学公招博士科研启动项目(GAU-KYQD-2020-5)
甘肃省青年科技基金计划项目(20JR5RA007)
甘肃农业大学科技创新基金项目(GAU-XKJS-2018-100)
出版年
2024
NETL
NSTL
万方数据