检索结果-南通市图书馆

Evolutionary importance of the relationship between cytogeography and climate:New insights on creosote bushes from North and South America

引用

Plant Diversity 2022年第5期44卷 492-498页

作者： Romina Vidal-Russell mariana tadey Romana Urfusova Tomás Urfus Cintia Paola Souto Laboratorio Ecotono-INIBIOMA(CONICET-UNComahue) Quintral1250BarilocheRío NegroArgentina Department of Botany Faculty of ScienceCharles UniversityBenátská212800PragueCzech Republic

Relationships between genome size and environmental variables suggest that DNA content might be adaptive and of evolutionary importance in *** genus Larrea provides an interesting system to test this hypothesis,since it shows both intra-and interspecific variation in genome *** has an amphitropical distribution in North and South American deserts,where it is most *** tridentata in North America shows a gradient of increasing autopolyploidy;while three of the four studied South American species are diploids,Larrea divaricata,Larrea nitida,Larrea ameghinoi,and the fourth is an allopolyploid,Larrea *** downloaded available focal species’georeferenced records from seven data *** used these records to extract biologically relevant environmental variables from WorldClim at 30 arc seconds scale,to have a broad characterization of the variable climatic conditions of both regions,and a climatic envelope for each *** estimated relative DNA content index and relative monoploid genome values,by flow cytometry,of four most abundant Larrea species throughout their respective *** we winnow the bioclimatic dataset down to uncorrelated variables and sampled locales,to analyse the degree of association between both intra-and interspecific relative DNA content and climatic variables that are functionally relevant in arid environments using Pearson correlations,general linear and mixed effects *** the genus Larrea,relative DNA content increases with rising temperature and decreases with rising *** the intraspecific level,all four species show relative DNA content variation across climatic *** is a genus that shows genome size variation correlated with *** results are also consistent with the hypothesis that extreme environmental pressures may have facilitated repeated whole genome duplication events in North America,while in South America,reticulate evolution,as allopolyploidizati

关键词： DNA content Drylands Genome size Jarilla Larrea Zygophyllaceae

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：