Evaluation of genetic diversity and relationships in orchardgrass (Dactylis glomerata L.) germplasm based on SRAP markers
文献类型: 外文期刊
作者: Zeng, Bing 2 ; Zhang, Xin-Quan 1 ; Lan, Ying 2 ; Yang, Wu-Yun 3 ;
作者机构: 1.Sichuan Agr Univ, Anim Sci & Technol Coll, Dept Grassland Sci, Yaan 625014, Peoples R China
2.SW Univ Rongchang, Dept Anim Sci, Chongqing 402460, Peoples R China
3.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China
关键词: genetic diversity;genetic relationship;germplasm;orchardgrass;sequence-related amplified polymorphism;POPULATIONS;BRASSICA
期刊名称:CANADIAN JOURNAL OF PLANT SCIENCE ( 影响因子:1.018; 五年影响因子:1.242 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The present study is the first report of characterizing the levels and patterns of genetic diversity in 60 orchardgrass accessions from four continents by sequence-related amplified polymorphism (SRAP) markers. Twenty-one primer pairs were used to produce 480 bands, of which 405 (84.38%) were polymorphic. The genetic similarity coefficients (GS) varied from 0.5863 to 0.9686 among the 60 collections, with an average of 0.7891. The genetic diversity of orchardgrass from China and the United States of America were found to be higher than that found in other countries. The dendrogram and principal component analysis realized from these markers clustered the materials into four main groups. The cluster analysis showed that orchardgrass from Australia was different from other collections in genetic diversity. Accessions from the same continent were classified into the same group, indicating that the genetic diversity of orchardgrass and the entire genetic basis of cultivars used in a continent is narrow. Furthermore, cluster analyses suggested that there is correlation between karyotype and morphological characterizations according to the analysis of the five subclusters that clustered from the first group. The information given by SRAP markers was concordant with the morphological variability and karyotype. This showed SRAP marker system could be used efficiently in the study of genetic variability and the evolutionary history of orchardgrasses. Based on the analysis of genetic diversity and relationships, the appropriate strategies for collection and conservation of germplasm resources can be developed and this in turn would help breeding of orchardgrass.
- 相关文献
作者其他论文 更多>>
-
Effect of Naphthalene Acetic Acid on Adventitious Root Development and Associated Physiological Changes in Stem Cutting of Hemarthria compressa
作者:Li, Jun-Lin;Zhang, Xin-Quan;Ma, Ying-Mei;Peng, Yan;Huang, Lin-Kai;Yang, Wen-Yu;Wan, Yan;Zhu, Yong-Qun
关键词:
-
Synthetic hexaploid wheat enhances variation and adaptive evolution of bread wheat in breeding processes
作者:Wan, Hong-Shen;Yang, Wu-Yun;Li, Jun;Wan, Hong-Shen;Yang, Wu-Yun
关键词:adaptive evolution;Aegilops tauschii;introgression;synthetic hexaploid wheat;wheat breeding
-
Effect of Naphthalene Acetic Acid on Adventitious Root Development and Associated Physiological Changes in Stem Cutting of Hemarthria compressa
作者:Li, Jun-Lin;Zhang, Xin-Quan;Ma, Ying-Mei;Peng, Yan;Huang, Lin-Kai;Yang, Wen-Yu;Wan, Yan;Zhu, Yong-Qun
关键词:




