RE:HYB:Plicata Genetics Update
- To: i*@egroups.com
- Subject: RE:HYB:Plicata Genetics Update
- From: i*@netscape.net
- Date: Fri, 12 Jan 2001 13:37:09 -0000
An update on what I've been finding. There definately some SDB and MDB
where there is plicata "pl" and luminata "plu" alleles on the pumilla
chromosomes. This means several things. One is that with the right
combinations we can get the full range of plicata genotypes with SDB
and MDB. It also means reinterpreting the genotypes. To help with this
I ended up looking at the diploid MTB (minature tall bearded). From
this I have concluded that the stripped pattern as seen in Flea
Circus, Circus Stripes, Autumn Circus etc, are genotype "pla pla plu
plu" Using data provided by Mike Sutton I now clasify luminatas as
being "pl pla plu plu". Fancy plicatas are likely "pl pl pla plu"
Thus glaciata X zonal will produce striped plicatas. Glaciatas X
luminatas will produce some luminatas, so hardy pinks can be used to
increas hardiness of luminatas. The wide zonals "pl plu plu plu" such
as Clarence. Suky, City Lights etc, crossed with luminatas should
produce 5/12 luminata, close to half of the offspring. As Clarence is
very hardy, it would be a good choice. Zonal X luminata will also
produce some luminatas.
I have also seen an interaction of plicata genotypes with the
particular pigments. Thus various anthocyanin pigments will show
slightly differently. For example, the dotted plicatas. Tea Apron
which is "pl pl pla pla" has a lot of dotting, yet Purple Pepper is
heavily dotted. Purple pepper has a much darker violet colour, and
heavier disribution. This interaction seems to produce even more
dramatic differences in other genotypes and may be able to change a
luminata into a broken colour. More research and data is needed. There
also seems to be at least one yellow pigment that is distributed
according to the same patterns and pathways as is affecting the
anthyocanin pigments.