华南农业大学学报2017，Vol.38Issue(3)：32-38,7.DOI:10.7671/j.issn.1001-411X.2017.03.006
蓖麻种质资源主要农艺性状的遗传多样性分析
Genetic diversity analysis of main agronomic traits in Ricinus communis germplasm resources
摘要
Abstract
[Objective] To study the genetic diversity of castor (Ricinus communis)germplasm resources, reveal the characteristic and distribution of excellent germplasm, and provide a theoretical basis for castor germplasm resources innovation and breed improvement.[Method]Fourty castor germplasm resources from China and abroad were used as material, and 20 traits were assessed by the clustering method and principal component analysis.The effects of castor quantitative characters on yield per plant were analayzed.[Result]The results of cluster analysis showed 40 germplasm resources belonged to five groups (I-V).Group I was the parents of progenies with large raceme, group II was the parents of progenies with large seed size and high yield potential, group III was the parents of progenies with small seed size, more branch and capsule, group IV was the parents of progenies with high yield, and group V was the parents of progenies with both large raceme and seed size.According to the results of principal component analysis, thirteen quantitative traits were classified to five major factors, namely bearing height of primary raceme, effective capsule number, capsule number of primary raceme, hundred-grain weight and effective raceme number of single plant.The cumulative contribution was about 87.06%, and the bearing height of primary raceme was the essential factor.[Conclusion]Fourty germplasm resources possess rich germplasm types and different traits, and might be used as excellent germplasm materials for breeding in future.关键词
蓖麻/种质资源/遗传多样性/聚类分析/主成分分析Key words
Ricinus communis/germplasm resource/genetic diversity/cluster analysis/principal component analysis分类
农业科技引用本文复制引用
郭丽芬,代梦媛,高梅,邓剑川,李文昌..蓖麻种质资源主要农艺性状的遗传多样性分析[J].华南农业大学学报,2017,38(3):32-38,7.基金项目
云南省重点新产品开发专项项目(2016BB005) （2016BB005）
云南省国际科技特派员项目(2015IA017) （2015IA017）
