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

Re: HYB: more pink

Just a little more grist for the pink theorists: 1) when the tangerine factor 
is present in two doses in diploids, the plants are not pink. Anybody know 
what happens when it is present in three doses in triploids? 2) what about 
pink and yellow blends like Black Hills Gold in which there are yellow areas 
and pink areas on the same petal. Surely all the cells are four dose (or are 
they?) genotypes and should be pink.

The relationship between anthocyanins and carotinoid pigments is easily over 
simplified. While brown and red may be the result of an interaction of the 
two classes of pigments, they are not the only result.  Two sibling varieties 
Kevin's Theme and Cosmic Wave differ only in presence of carotinoids in KT 
and the lack in of carotinoids in CW. In CW the anthocyanin  expresses as 
blue, but in KT it expresses as blue violet. The wonder of their parent Edith 
Wolford is that the interaction appears to not take place and the falls are 
blue in spite of the fact that yellow is theoretically present in the falls.

Please take Dr. Werckmeister with a grain of salt. His mechanistic 
explanations of genetics are often a stretch e.g. the notion that whites with 
a pulp leaf base have a filter of some sort at the base of the flower that 
prevents purple coloring getting to the flower. Or how about the idea that a 
cross between a pure dominant and a pure recessive will occasionally produce 
a seedling in which has somehow gotten four doses of the recessive gene.

Fred Kerr

[Non-text portions of this message have been removed]

-------------------------- eGroups Sponsor -------------------------~-~>
Create your business web site your way now at Bigstep.com.
It's the fast, easy way to get online, to promote your business,
and to sell your products and services. Try Bigstep.com now.

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