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Abstract Detail


Bryological and Lichenological Section/ABLS

Bainard, Jillian D. [1], Newmaster, Steve [2].

Widespread endopolyploidy in mosses.

Endopolyploid species have nuclei of varying DNA contents, which appears to be a common phenomenon in plants. The prevalence of endopolyploidy has not been determined in bryophytes (including mosses and liverworts). Forty moss species and twenty liverwort species were analyzed for the degree of endopolyploidy using flow cytometry. Of the forty moss species, all were endopolyploid (mean cycle value = 0.65 ± 0.038) except for the Sphagnum mosses (mean cycle value = 0). None of the liverwort species were considered to be endopolyploid (mean cycle value < 0.10). As bryophytes are considered to be phylogenetically basal to tracheophytes, understanding the prevalence and role of endopolyploidy in this group is important.

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1 - University of Guelph, Integrative Biology, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
2 - Univeristy of Guelph, Integrative Biology, 50 Stone Rd East, Guelph, Ontario, N1G 2W1, Canada

Keywords:
bryophytes
liverworts
endopolyploidy
DNA content.

Presentation Type: Oral Paper:Papers for Sections
Session: 31
Location: 554A/Convention Center
Date: Tuesday, August 3rd, 2010
Time: 9:15 AM
Number: 31002
Abstract ID:513


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