Synapsis and meiotic nodules in the Lilium species-hybrid "Black Beauty" prepared using a novel plant chromosome spread technique for ultra-structural and immunocytochemical analyses.

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Synapsis and meiotic nodules in the Lilium sp ...
Jason Gibbs
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Last edited by WorkBot
December 15, 2009 | History

Synapsis and meiotic nodules in the Lilium species-hybrid "Black Beauty" prepared using a novel plant chromosome spread technique for ultra-structural and immunocytochemical analyses.

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A method for spreading meiotic chromosomes was developed for examining synaptonemal complex (SC) formation and meiotic nodules (MN) in the Lilium species-hybrid Black Beauty. Preliminary studies suggest this technique has utility for EM immunocytochemical analyses. Black Beauty only completes 35.2% synapsis. The axial length in pachytene microsporocytes was 3699.5mum in Black Beauty and 4492.2mum in the control L. longiflorum cv. Nellie White. The number of potential synaptic initiations was estimated to be 528 for Black Beauty and 668 for Nellie White. The species-hybrid was estimated to successfully complete only 243 synaptic initiations. The synaptic defect is believed to result from an inability to convert axial associations into SC formation due to failed homology checks. Analysis of MN frequency on the chromosome axis found no difference between Black Beauty and Nellie White. MNs appeared at synaptic forks in higher than expected frequencies. The possible relationship of MNs to synapsis is discussed.

Publish Date
Language
English
Pages
110

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Edition Notes

Advisor: Clare Hasenkampf.

Botany theses.

Thesis (M.Sc.)--University of Toronto, 2005.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 44-01, page: 0232.

GERSTEIN MICROTEXT copy on microfiche (2 microfiches).

The Physical Object

Pagination
110 leaves.
Number of pages
110

ID Numbers

Open Library
OL20238868M
ISBN 10
0494024488

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December 15, 2009 Edited by WorkBot link works
October 26, 2008 Created by ImportBot Imported from University of Toronto MARC record