DSpace Kyoto University
Japanese | English 

Kyoto University Research Information Repository >
Primate Research Institute >
Journal Articles >

Access count of this item: 98

Please use this identifier to cite or link to this item: http://hdl.handle.net/2433/160349

Full text link:

File Description SizeFormat
j.parint.2012.07.007.pdf679 kBAdobe PDFView/Open
Title: Evolution of sex chromosomes ZW of Schistosoma mansoni inferred from chromosome paint and BAC mapping analyses.
Authors: Hirai, Hirohisa kyouindb researcher_resolver
Hirai, Yuriko
Loverde, Philip T
Author's alias: 平井, 啓久
Keywords: Schistosoma manson
Chromosome paint
BAC mapping
Sex chromosome
Issue Date: Dec-2012
Publisher: Elsevier Ireland Ltd.
Journal title: Parasitology international
Volume: 61
Issue: 4
Start page: 684
End page: 689
Abstract: Chromosomes of schistosome parasites among digenetic flukes have a unique evolution because they exhibit the sex chromosomes ZW, which are not found in the other groups of flukes that are hermaphrodites. We conducted molecular cytogenetic analyses for investigating the sex chromosome evolution using chromosome paint analysis and BAC clones mapping. To carry this out, we developed a technique for making paint probes of genomic DNA from a single scraped chromosome segment using a chromosome microdissection system, and a FISH mapping technique for BAC clones. Paint probes clearly identified each of the 8 pairs of chromosomes by a different fluorochrome color. Combination analysis of chromosome paint analysis with Z/W probes and chromosome mapping with 93 BAC clones revealed that the W chromosome of Schistosoma mansoni has evolved by at least four inversion events and heterochromatinization. Nine of 93 BAC clones hybridized with both the Z and W chromosomes, but the locations were different between Z and W chromosomes. The homologous regions were estimated to have moved from the original Z chromosome to the differentiated W chromosome by three inversions events that occurred before W heterohcromatinization. An inversion that was observed in the heterochromatic region of the W chromosome likely occurred after W heterochromatinization. These inversions and heterochromatinization are hypothesized to be the key factors that promoted the evolution of the W chromosome of S. mansoni.
Rights: © 2012 Elsevier Ireland Ltd. Published by Elsevier Ireland Ltd.
この論文は著者最終稿です。内容が印刷版と異なることがありますので、引用の際には出版社版をご確認ご利用ください。This is the Accepted Author Manuscript. Please cite only the published version.
URI: http://hdl.handle.net/2433/160349
DOI(Published Version): 10.1016/j.parint.2012.07.007
PubMed ID: 22831897
Appears in Collections:Journal Articles

Export to RefWorks

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Powered by DSpace 3.2.0 and JAIRO Crawler-List version 1.1
All items in KURENAI are protected by original copyright, with all rights reserved, unless otherwise indicated.