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Author Sýkorová, E. ♦ Cartagena, J. ♦ Horáková, M. ♦ Fukui, K. ♦ Fajkus, J.
Source SpringerLink
Content type Text
Publisher Springer-Verlag
File Format PDF
Copyright Year ©2003
Language English
Subject Domain (in DDC) Social sciences ♦ Sociology & anthropology
Abstract Telomere-associated regions represent boundaries between the relatively homogeneous telomeres and the subtelomeres, which show much greater heterogeneity in chromatin structure and DNA composition. Although a major fraction of subtelomeres is usually formed by a limited number of highly repeated DNA sequence families, their mutual arrangement, attachment to telomeres and the presence of interspersed unique or low-copy-number sequences make these terminal domains chromosome specific. In this study, we describe the structures of junctions between telomeres and a major subtelomeric repeat of the plant Silene latifolia, X43.1. Our results show that on individual chromosome arms, X43.1 is attached to the telomere either directly at sites corresponding to nucleosome boundaries previously mapped in this sequence, or via other spacer sequences, both previously characterized and newly described ones. Sites of telomere junctions are non-random in all the telomere-associated sequences analysed. These data obtained at the molecular level have been verified using in situ hybridization to metaphase chromosomes and extended DNA fibres.
ISSN 16174615
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2003-02-13
Publisher Place Berlin/Heidelberg
e-ISSN 16174623
Journal Molecular and General Genetics MGG
Volume Number 269
Issue Number 1
Page Count 8
Starting Page 13
Ending Page 20

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Source: SpringerLink