| 引用本文: | 马道承, 杨有兴, 陈文浪, 万秀勇, 潘淑民, 文国荣, 王凌晖.20个赤苍藤种质资源表型性状的遗传多样性分析及综合评价[J].广西植物,2023,43(11):2091-2105.[点击复制] |
| MA Daocheng, YANG Youxing, CHEN Wenlang, WAN Xiuyong, PAN Shumin,
WEN Guorong, WANG Linghui.Genetic diversity analysis and comprehensive evaluation of phenotypic characters in 20 germplasm resources of Erythropalum scandens[J].Guihaia,2023,43(11):2091-2105.[点击复制] |
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| 20个赤苍藤种质资源表型性状的遗传多样性分析及综合评价 |
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马道承1, 杨有兴2, 陈文浪1, 万秀勇2, 潘淑民1, 文国荣2, 王凌晖1*
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1. 广西大学 林学院, 南宁 530004;2. 南宁市农业科学研究所, 南宁 530021
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| 摘要: |
| 分析木本蔬菜赤苍藤不同种质资源的表型性状特点,为筛选出叶大、枝条生长旺盛的赤苍藤优良种源奠定基础,该研究以来自越南及中国3省(区)(广西、广东、福建)的20个赤苍藤种源为对象,对12个叶性状及4个枝条性状进行测定及计算,对各性状进行描述统计、方差分析及性状相关性分析,采用主成分分析法计算各种源主成分得分并对各种源进行聚类,对不同赤苍藤种源表型性状进行统计、分类及评价。结果表明:(1)各赤苍藤种源间大多数叶、枝条性状存在显著或极显著差异。种源内各性状变异系数变化幅度不尽相同。种源间各性状变异系数变化幅度依次为叶功能性状(15.42%～70.01%)>枝条性状(20.57%～71.71%)>叶形态性状(3.39%～20.01%); 种源内表型变异更突出。(2)就性状间相关性而言,叶形态性状及叶功能性状指标间多为极显著相关,新枝数量与节间数、新叶数极显著相关,但与叶形态性状的相关关系不明显。(3)16个表型性状共可提取4个主成分,累计贡献率达85.528%。4个主成分分别体现出叶的形态、枝叶萌发生长、叶形状及叶干物质积累及枝条增粗状况。(4)对20个种源进行聚类分析可分为三大类,一类为叶大、生长良好的种源,一类为叶较小、枝条生长旺盛的种源,还有一类种源综合表现不突出。各大类种源中的小类在地理分布上较为接近。(5)福建安溪及福清的种源可选择为大叶种源; 广西大新、上思和桂平的种源可选择为枝条生长旺盛种源。综合来看,中国福建安溪种源综合表现最佳,其次为中国福建福清、中国广东海丰、中国广西南宁、越南茶陵。广西昭平、宜州的两种源综合表现最差,不适宜广西南宁地区引种栽培。部分种源中存在生长表现突出的优良单株,可将此类植株开发为无性系,进行更深入的种源试验。该研究结果为赤苍藤种源表型性状分析及广西南宁引种初步表现提供了科学依据,为筛选、培育高产赤苍藤品种奠定了基础。 |
| 关键词: 赤苍藤, 木本蔬菜, 种质资源, 表型性状, 遗传多样性, 综合评价 |
| DOI：10.11931/guihaia.gxzw202211002 |
| 分类号:Q945; Q948 |
| 文章编号:1000-3142(2023)11-2091-15 |
| 基金项目:广西林业科技项目(桂林科研 [2021]16号); 2022年广西壮族自治区财政林木良种繁育补助项目“木本蔬菜种质资源调查收集与基因库建立”; “南宁树木园林下木本蔬菜种植技术研究与示范”项目(南宁树木园科字2018-1号); 广西研究生教育创新计划资助项目(YCSW2022015)。 |
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| Genetic diversity analysis and comprehensive evaluation of phenotypic characters in 20 germplasm resources of Erythropalum scandens |
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MA Daocheng1, YANG Youxing2, CHEN Wenlang1, WAN Xiuyong2, PAN Shumin1,
WEN Guorong2, WANG Linghui1*
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1. College of Forestry, Guangxi University, Nanning 530004, China;2. Nanning Institute of Agricultural Sciences, Nanning 530021, China
1. College of Forestry, Guangxi University, Nanning 530004, China; 2. Nanning Institute of Agricultural Sciences, Nanning 530021, China
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| Abstract: |
| In order to analyze the phenotypic character of different germplasm resources of woody vegetable Erythropalum scandens and lay a foundation for selecting excellent E. scandens resources with large leaf and vigorous branch. In this study, 20 provenances from Vietnam and three provinces(regions)in China(Guangxi, Guangdong and Fujian)were selected as the research objects. Twelve leaf character and four branch characters were measured and calculated. Descriptive statistics, variance analysis and correlation analysis were performed, and the phenotypic characteristics of different E. scandens resources were counted, classified and evaluated. The results were as follows:(1)There were significant or extremely significant differences in most leaf and branch characters among different resources. The rangeabilities of the coefficient variation(CV)of all characters within provenances were not the same. The rangeability order of the coefficient variation of all characters among different resources was leaf functional character(15.42%～70.01%)> branch character(20.57%-71.71%)> leaf morphological character(3.39%～20.01%). Phenotypic variation within provenance was more prominent.(2)In terms of correlation between leaf morphological character and functional characteristic, there was a significant correlation between number of new branches, number of internodes and number of new leaves, but there was no significant correlation between number of new branches and leaf morphological characters.(3)Four principal components could be extracted from 16 phenotypic characters, and the total contribution rate was 85.528%. Four principal components reflected leaf morphology, leaf germination and growth, leaf shape, dry matter accumulation and branch thickening, respectively.(4)Cluster analysis of 20 resources could be divided into three categories, one had large leaves and good growth condition, one had small leaves and vigorous branches, and the other one was not outstanding in comprehensive performance. The geographical distribution of the subgroups of the major resources was close to each other.(5)Anxi and Fuqing in Fujian could be selected as resources with large leaves; Daxin, Shangsi and Guiping in Guangxi could be selected as resources with strong branches. In conclusion, the provenances of Anxi in Fujian has the best comprehensive performance, followed by Fuqing, Haifeng, Nanning and Chaling. Zhaoping and Yizhou has the worst comprehensive performance and they are not suitable for cultivation in Nanning. In some resources, there are excellent single plants with outstanding growth performances, which could be developed into clones for further provenance tests. This study provides a scientific basis for the analysis of phenotypic characters and the initial performance of different E. scandens germplasm resources in Nanning, and lay a foundation for screening and breeding high-yield E. scandens varieties. |
| Key words: Erythropalum scandens, woody vegetable, germplasm resources, phenotypic character, genetic diversity, comprehensive evaluation |
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