Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat

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	Effects on Genome Constitution and Novel Cell Wall Formation Caused by the Addition of 5RS Rye Chromosome to Common Wheat
	Zhi-Jun Cheng 1; Minoru Murata 2; Sodmergen 3; Xiao-Mei Li 4; Hai Nian 5; Jian-Min Wan 1
刊名	Journal of Integrative Plant Biology
	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://111.203.20.206/handle/2HMLN22E/106184]
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.