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Characterization of genome in tetraploid StY species of Elymus (Triticeae: Poaceae) using sequential FISH and GISH
Liu, Ruijuan ; Wang, Richard R. -C. ; Yu, Feng ; Lu, Xingwang ; Dou, Quanwen
2017-08-01
发表期刊GENOME
摘要Genomes of ten species of Elymus, either presumed or known as tetraploid StY, were characterized using fluorescence in situ hybridization (FISH) and genomic in situ hybridization (GISH). These tetraploid species could be grouped into three categories. Type I included StY genome reported species-Roegneria pendulina, R. nutans, R. glaberrima, R. ciliaris, and Elymus nevskii, and StY genome presumed species-R. sinica, R. breviglumis, and R. dura, whose genome could be separated into two sets based on different GISH intensities. Type I genome constitution was deemed as putative StY. The St genome were mainly characterized with intense hybridization with pAs1, fewer AAG sites, and linked distribution of 5S rDNA and 18S-26S rDNA, while the Y genome with less intense hybridization with pAs1, more varied AAG sites, and isolated distribution of 5S rDNA and 18S-26S rDNA. Nevertheless, further genomic variations were detected among the different StY species. Type II included E. alashanicus, whose genome could be easily separated based on GISH pattern. FISH and GISH patterns suggested that E. alashanicus comprised a modified St genome and an unknown genome. Type III included E. longearistatus, whose genome could not be separated by GISH and was designated as St(1)Y(1). Notably, a close relationship between S-1 and Y-1 genomes was observed.
出版者CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/28274
专题中国科学院西北高原生物研究所
推荐引用方式
GB/T 7714
Liu, Ruijuan,Wang, Richard R. -C.,Yu, Feng,et al. Characterization of genome in tetraploid StY species of Elymus (Triticeae: Poaceae) using sequential FISH and GISH[J]. GENOME,2017.
APA Liu, Ruijuan,Wang, Richard R. -C.,Yu, Feng,Lu, Xingwang,&Dou, Quanwen.(2017).Characterization of genome in tetraploid StY species of Elymus (Triticeae: Poaceae) using sequential FISH and GISH.GENOME.
MLA Liu, Ruijuan,et al."Characterization of genome in tetraploid StY species of Elymus (Triticeae: Poaceae) using sequential FISH and GISH".GENOME (2017).
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