• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Genetic Resources and Crop Evolution >Structure of wild annual sunflower (Helianthus annuus L.) accessions based on agro-morphological traits
【24h】

Structure of wild annual sunflower (Helianthus annuus L.) accessions based on agro-morphological traits

机译：基于农业形态特征的一年生野生向日葵（Helianthus annuus L.）种质结构

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Seventy-seven wild sunflower accessions from USA were compared in France (Mauguio) for 13 quantitative characters using multivariate methods, including clustering, principal component and canonical discriminate analyzes to assess the patterns of morphological and climatic variation. Geographic and climatic data from their sampled sites such as latitude, longitude, elevation, rain fall, temperature, number of rain fall days, temperature range, and sunniness were also analyzed and we sought for correlations of climatic variables and morphological traits. Climatic data clustered the accessions into four groups. Principal component analysis was used to summarize the characteristic habits of annual wild sunflower sampled sites in terms of geography and climates, thus we characterized the ecogeographical profiles of wild sunflowers. As we studied the traits in a common environment we speculated whether local adaptation patterns are sustained by our data. Indeed traits shared by accessions that belong to climatic clusters are suggested to be due to local adaptation.
机译：采用多变量方法，包括聚类分析，主成分分析和规范判别分析，以评估形态和气候变化模式，比较了法国（毛古约）来自美国的77种野生向日葵种的13个定量特征。还分析了他们采样地点的地理和气候数据，例如纬度，经度，海拔，降雨，温度，降雨天数，温度范围和日照度，并寻求气候变量与形态特征的相关性。气候数据将种质分为四类。利用主成分分析总结了年度野生向日葵采样地点的地理和气候特征，因此我们对野生向日葵的生态地理特征进行了描述。在研究共同环境中的特征时，我们推测了我们的数据是否能够维持局部适应模式。确实，属于气候集群的种质共有的性状被认为是由于当地的适应。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号