Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat | |
Zhi-Jun Cheng1; Minoru Murata2; Sodmergen3; Xiao-Mei Li4; Hai Nian5; Jian-Min Wan1 | |
刊名 | Journal of Integrative Plant Biology
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2008 | |
卷号 | 50期号:4页码:503-509 |
关键词 | addition lines cell wall chromosome instability common wheat rye |
ISSN号 | 1672-9072 |
英文摘要 | The cytological instability of common wheat-rye addition lines was investigated in the present study. The chromosome numbers of almost all addition lines were considerably stable, but those of CS + 5R were very variable. The rye chromosome added in this line was found to be much shorter than expected. Fluorescent in situ hybridization with 5S rDNA and the centromere-specific probes clearly revealed that the short rye chromosome contains only a short arm of chromosome 5R (5RS). In this line, chromosome numbers of both 5RS and common wheat were changeable. The chromosome numbers ranged from 2n = 36 to 2n = 44 in the cells carrying two 5RS, and ranged from 2n = 31 to 2n = 44 in one 5RS cells. In addition to the chromosome instability, the multicells wrapped in a sac-like structure were frequently observed in the root meristematic tissues of CS + 5RS after the enzyme treatment for chromosome preparation. Genomic in situ hybridization with rye DNA as a probe showed that all cells in sacs investigated were at the interphase stage and contained one or two 5RS chromosomes. An electron microscopic analysis revealed that the cells of CS + 5RS, particularly in sacs, have abnormal (irregular and curved) cell walls. These results indicate that 5RS has (a) specific factor(s) influencing the cell wall development as well as the genome stability. |
学科主题 | 植物学 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.nais.net.cn/handle/2HMLN22E/131232] ![]() |
专题 | 作物科学研究所 |
作者单位 | 1.Institute of Crop Science, Chinese Academy of Agriculture Science, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081; 2.Research Institute for Bioresources, Okayama University, Japan, Kurashiki; 3.College of Life Science, Peking University, Beijing, 100871; 4.Institute of Botany, the Chinese Academy of Sciences, State Key Laboratory of Systematic and Evolutionary Botany, Beijing, 100093; 5.South China Agricultural University, Guangzhou, 300098 |
推荐引用方式 GB/T 7714 | Zhi-Jun Cheng,Minoru Murata,Sodmergen,et al. Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat[J]. Journal of Integrative Plant Biology,2008,50(4):503-509. |
APA | Zhi-Jun Cheng,Minoru Murata,Sodmergen,Xiao-Mei Li,Hai Nian,&Jian-Min Wan.(2008).Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat.Journal of Integrative Plant Biology,50(4),503-509. |
MLA | Zhi-Jun Cheng,et al."Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat".Journal of Integrative Plant Biology 50.4(2008):503-509. |
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