文献类型: 外文期刊
作者: Qiu, Xianqin 1 ; Zhang, Hao 1 ; Wang, Qigang 1 ; Jian, Hongying 1 ; Yan, Huijun 1 ; Zhang, Ting 1 ; Wang, Jihua 1 ; Tang, 1 ;
作者机构: 1.Yunnan Acad Agr Sci, Flower Res Inst, Yunnan Flower Breeding Key Lab, Kunming 650205, Peoples R China
关键词: evolution;genes;genetic markers;genotypes;molecular taxonomy;nucleotide sequences;phylogenetics;plant morphology;taxonomy;Rosa;APEC countries;Developing Countries;East Asia;Asia;Rosaceae;Rosales;dicotyledons;angiosperms;Spermatophyta;plants;eukaryotes;Rosa.
期刊名称:SCIENTIA HORTICULTURAE ( 影响因子:3.463; 五年影响因子:3.672 )
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收录情况: SCI
摘要: The internal transcribed spacers (ITS) of the nuclear ribosomal DNA and the chloroplast gene matK were used to characterize 39 accessions of wild roses from nine botanical sections in China. Aims of the study were to define the phylogenetic profiles of species and to provide useful information for the classification. Independent and combined phylogenetic analyses for the ITS and matK sequences were performed using maximum parsimony (MP) method, indicating that: (1) six accessions from the section Pimpinellifoliae formed a clade, and Rosa xanthina was separated from others, which reflected these characters of the species in section Pimpinellifoliae on the molecular level; (2) the morphological similarity between sections Synstylae and Chinenses, was confirmed on the molecular level by our analysis. (3) Rosa praelucens from the section Microphyllae formed a clade with all the accessions of the section Cinnamomeae. This finding suggested that further study of the systematic position R. praelucens based on more DNA data. The results showed that a combining phylogenetic analysis was more helpful to clarify origin and classification of species whose systematic position is still uncertain. Moreover, our results will provide helpful evidences for the classification and evolution of genus Rosa. (C) 2012 Elsevier B.V. All rights reserved.
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