Post by cactuschris on Jun 29, 2018 8:01:06 GMT -5
I have been observing some interesting traits that occur when hybridising with Sarracenia purpurea ssp purpurea v heterophylla and see some strange and unexpected results.
The parent heterophylla is completely green, has no pigment in the growing point, flowers or where damage or die back occur. It is the characteristic yellow/green of what I consider heterophylla should be.
The crosses are:
S. Purp heterophylla x rubre gulfensis AF
And
S. ((Leuco AF x rubra jonesii AF) x Suspicion) x purp heterophylla.
In each case the other parents look correct for AF, and in each case the offspring look ok for a purpurea cross in shape. They both show no signs of red pigment in the growing point and no red in damaged or die back areas.
However, some of the seedlings have developed a very faint red veining in the hood. It is very faint, but clear, apparently like those called semi-veinless. The growing points are free of all red colour, damage and die back is clear of red, only the light veining in the hoods makes these different. All plants are grown in full sun at all times.
I can only guess that perhaps:
The purpurea is not truly a full heterophylla, if so this may be true of many of the clones in cultivation
Or
There are some recessive genes that become activated in further crosses
Or
Some other anomaly is occurring.
I have found little or no research on semi-veinless plants, the assumtions from field work seem to be that they are a result of back crosses from AF forms, and yet from my small experience with these crosses I think the possibility that they are an unusual expression of 'not normally visible' genes that only become visible when normal AF is present is a strong possibility.
Has anyone else seen this? or researched it?
chris