hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Origin of Sports Discussion

Dr. Zonneveld,
       The 'Amber Tiara' was indeed part of a tissue culture batch. It is a highly unstable cultivar producing a very large percentage of sports. It probably is the most prolific yet. Four of its sports are already registered, and I have another as does Carol Brashear. In addition to these periclinal forms, it produces a remarkable number of sectorials and mericlinals. I would guess that one division out of five will have a sport in it. The other two plants I saw twinspots in were not tissue cultured.
       Before this discussion moves on, we should address the other type of sport which in your third article in the AHS Journal you say is caused by mitotic recombination. This would be blue plants sporting to green. In another article, you state that a blue/green chimera is impossible, so we will stick to complete changes. Your example here is the group of all-green sports said to have come from 'Halcyon'. You state clearly that each is different from the other. I must remind you that little is actually known about the origin of these plants not even where they sported. Do you have information on the origins of these plants you could share with us? Because you chose them as examples for your "Rule of Thumb" I assume you must. Please fill us in. If blue plants do actually sport to green forms, why would this be mitotic recombination and not a nuclear mutation affecting the gene that controls the wax composition? 
       For the record, I should say that I have never seen a blue plant produce an all-green division. Has anyone else among those reading these posts?
                                                                                                    .......Bill Meyer

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index