当前位置: 首页 > 文章 > 江南油杉球果种子特性种源变异分析 中南林业科技大学学报 2016,36 (2) 19-24
Position: Home > Articles > Analysese of genetic variation of fruit and seed on Keteleeria cyclolepis Journal of Central South University of Forestry & Technology 2016,36 (2) 19-24

江南油杉球果种子特性种源变异分析

作  者:
王润辉;胡德活;郑会全;晏姝;蒋燚;朱积余
单  位:
广东省林业科学研究院;广西壮族自治区林业科学研究院
关键词:
球果;种子;遗传变异;江南油杉
摘  要:
江南油杉是我国珍贵用材树种,其资源分布日益减少。为了更有效的评价江南油杉种质资源的遗传多样性,选择广东、江西境内的五个种源地开展球果和种子形态特征差异性的研究。方差分析结果表明,球果和种子的形态性状差异在种源间均达极显著水平,多重比较进一步证明种源间差异的真实存在;球果和种子形态性状间的相关分析显示,球果短径与三个种子性状间均存在极显著地表型和遗传相关。主成分分析和聚类分析等多元统计分析揭示了五个种源的相似性情况,与行政区划不同,广东的南雄种源与江西的大余种源和崇义种源间的相似性大,这可能与三地的地理位置相邻空间隔离较小有关。
译  名:
Analysese of genetic variation of fruit and seed on Keteleeria cyclolepis
作  者:
WANG Run-hui;HU De-huo;ZHENG Hui-quan;YAN Shu;JIANG Yi;ZHU Ji-yu;Guangdong Academy of Forestry;Guangxi Academy of Forestry;
关键词:
cones;;seeds;;genetic variation;;Keteleeria cyclolepis
摘  要:
Keteleeria cyclolepis Flous is the rare timber species in China, but its distribution becomes smaller and smaller. For the sake of evaluation of the diversity of Keteleeria cyclolepis, five provenances within Guangdong and Jiangxi provinces were applied to study the phenotypical variation of cone and seed. Results from ANOVA indicated that phenotypical differeces of both cone and seed reached highly significant level. Multiple comparison also approved that. Correlation between all the five traits showed that cone diameter had significant correlation with seed wing length, seed wing width and Thousand-grain weight. The similarity between the five provenances was revealed by principal components analysis and cluster analysis. Unlike administrative zoning, provenance of nanxiong(nx) from Guangdong province and provenances of Dayu(dy) and chongyi(cy) from Jiangxi province possessed more similarity, perhaps because of the smaller geographical isolation.

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