This 45″ 2010 female Low-white Pied-sided Bloodred is currently eating frozen/thawed adult mice. She has low expression of white, but many of our Medium-white examples of this morph sprang from one or both parents having low-white expression. That said, most of this female’s progeny will have low-white expression.
More about Pied-sided Bloodred mutants ~~~~~~~~~~~~~>
Pied-sided Bloodred (aka: p/s bloodreds)
Low White Expression Note: Expect DIFFUSED and BLOODRED to be incorrectly but synonymously used in the hobby Most Commonly used Name: Pied-sided Bloodred Mode of Genetic Inheritance:Selective Variation + Recessive Morph Type:Single recessive mutation & selective variation
Eye Color: Black pupil & body ground colored iris
Go to Historyfor more details about the DIFFUSED / BLOODRED base mutation of this compound morph.
At this time, this author suspects that P/S Bloodreds owe their atypical white lateral and facial markings to polygenetic traits versus simple recessive mutation. It is sometimes difficult to determine the inheritance of a trait or mutation when expression of the atypical feature is highly variable. In other words, are the Bloodred siblings of P/S Bloodreds not P/S Bloodreds OR are they P/S Bloodred mutants that are at the lowest end of the 0-to-10 scale for white expression? When proving the mode of inheritance via evaluation of MendelianPhenotype Proportions in a single brood of snakes, visual expression is crucial. Hence, if the expression of white in this morph can be so extremely variable, when citing the ratio of visual mutants compared to visual non mutants, the very description of inheritance can be in doubt. I therefore honestly don’t know if P/S Bloodreds owe their distinctive pied-sided white appearance to a recessive mutation OR polygenic trait modifications.
Aside from the random lateral white feature that is obvious in most members of this morph – compared to standard Bloodreds – is the extreme diffusion – even if they don’t demonstrate any of the randomly distributed white patches on the sides. On most – even in the absence of lateral white patches – there is an obvious line of demarcation between the dorsal and lateral pattern fields – just above the half-way point on the sides (dorso–laterally). This stark break line between dorsal and lateral markings also begs questions about the lateral white being a mutation OR variable expression of polygenetics.
What to expect:
As neonates, P/S Bloodred corns are often heavily patterned (sides are generally faded or lacking typical lateral markings). Some exhibit black (or partially black) scales bordering some of the pattern blotches, and most of them have head patterns that are notably unlike those of typical corns. Like most SMR Bloodreds, P/S Bloodreds diffuse dramatically through maturity, thereby rendering adults that are nearly devoid of head markings, side markings, (any visible dorsal markings will be very faint). There will be NO belly checkering, but ventral coloration can be all red, all white, or red and white (no black). Many of the early Bloodred corns in the early 1990s were overly inbred and therefore suffered poor fertility (not to mention – the progeny of many of the first generations were stubbornly lizard lovers, refusing to eat pinky mice). Thankfully, through out-crossing in our projects to improve or change colors and patterns, like virtually all Bloodreds, P/S Bloodreds do not rank high in the realms of sterility or reluctance to eat rodents. In fact, there are some seasons in which Bloodreds are among the best feeders of our corn snake neonates.
The amount and random distribution of white that will be on Low White Expression members of this morph are difficult to quantify. As more are produced, the percentage of white on the three classes of this morph (Low white, Medium white, and High white) will be possible to grade. Virtually all P/S Bloodreds randomly demonstrate the shocking white blotches only on the lower sides of their bodies – predominantly in the first half of their bodies. Some will have one (or a few) white scales (or partially white scales) on their faces. It is still rare for a SMR P/S Bloodred to have white on the sides that isdisjunctto the belly white (not touching the belly color field).
