Thanks for the data. When looking at a specific , such as inheritence
of cartenoid pigments, we have to ignore all the anthocyanin and
pattern of distribution as irrelevant. Thus an amber or a brown, or a
red etc all have inherited cartenoids. For anyone wanting to look more
closely, at the cartenoids in a flower petal, place petal in boiling
water. Of actually, place petal in a dish and pour boiling hot water on
it. The anthocyanin will wash out (water soluble) and the cartenoids
are left. If anthocyanis are very heavy, a couple of washes are
necessary.
Likewise, pattern of distribution of pigments is also
irrelevant.
So, of the 16 seedlings from crossing Sly Fox to a cultivar
having
cartenoid pigment, all 16 have inherited cartenoids. As expected
from
crossing a white to a yellow with the repression of yellow being a
recessive.
To test chi-square fit, you would subtract 17 from 17
and do some math
on result , which is zero, and end up with zero
probability that it
is"not" a recessive. In statistics you always test for
results against
your hypothes, disproving the oposite (ie that the
repression of yellow
is a dominant) thus by inference proving your idea. A
strange way, but
t he way it is done.
Another way of looking at
data is as a binomial distributiopn. That is,
if repression of cartenoid
is a dominant then half of seedlings
would have cartenoids and half
wouldn't.20a proability of 1/2 or .5 for
each seedling. On this basis .
your would expect 8 of seedlings to have
cartenoid and 8 not. So getting
16 of 16 is like flipping a coin and
getting 16 heads in a row Proability
of this is 0.0000152587890625 .
So we can safely say that the
repression of cartenoids is a recessive,
in Sly Fox.
Most blues and
whites are rrC, and I have made many crosses of this
type and have never
gotten a seedling with cartenoid pigment. It is
very immprobable that Lady
Celesta is anything other then a rrC.
So yellow has to either be a
result of stray pollen or other accident ,
or a recessive yellow as what I
call alternative yellow.
As for variagata pattern of anthocyanin on
seedling, Linda is correct.
The variagata distribution of anthocyanin
could have been hidden in
either parent. In Sly Fox because pattern gene
for variagata could be
present but not seen as it doesn't have any
anthocyanin, or in Lady
Celesta as it doesn't show as it is all
anthocyanin.
Hope this makes sense.
Chuck Chapman
Re: HYB
TB Photo: SLY FOX x CELESTE correction
Posted by: "Margie
Valenzuela"
IrisLady@comcast.net
iris85737
Fri
Jul 17, 2009 7:52 am (PDT)
So far, I've only had 2
maiden blooms from this cross. The rest
of the seedlings should have their
maiden bloom this coming spring, so
there really is not any other siblings
to compare that specific cross
with at this time.
However, I've had
other maiden blooms from SLY FOX. All these were
maiden blooms as well and
not all of their siblings have bloomed yet
either.
From my 2009
notes:
BENGAL TIGER x SLY FOX produced 3 yellows with white veining
around the
beard.
SLY FOX x TROPICAL BUTTERFLY produced 1 medium
grey/blue-brown self.
SLY FOX x BURST produced 4 yellows. 3 pure
yellows,
and 1 with honey/rust standards and a honey/rust rim on the
falls.
BROADWAY X SLY FOX had 5 maiden blooms this spring late in the
season -
most had heat damage as we were into 100 plus degree heat when
they
bloomed.
This cross produced 2 yellow selfs;
1 yellow
sibling with brown veining around the beard;
1 sibling had light yellow
standards with rusty-brown blue/purple blend
falls edged with a yellow
rim;
AND *** 1 very similar to the 'rich yellow' SLY FOX x LADY CELESTE
seedling, only it's a light lemon yellow, with a smaller circle around
the beard but in white (brown veining on shoulders & around the
beard),
AND has the identical (same honey color) ringed wash on the falls
only
somewhat lighter in color.
T
hose 2 'look-a-like'
half-siblings could easily pass themselves off as
siblings. None of these
seedlings reproduced a red beard, all had
yellow or orange
beards.
Maybe some of this information may help???
~ Margie
V.
