Feb 27, 2023 · Despite the wide range of Mendelian color phenotypes available in the pet trade, ball pythons remain an overlooked species in pigmentation research. Here, we investigate the genetic basis of the recessive piebald phenotype, a pattern defect characterized by patches of unpigmented skin (leucoderma).

Our strategy for identifying genomic signals associated with python pigmentation biology parallels the method described by Bodnar and Bradley to decode the genetic program underlying developmental phenotypes during drosophila embryogenesis.

Dec 2, 2024 · Research on ball python genetics is crucial for understanding the underlying mechanisms behind their diverse coloration and patterns. An international research team, including Professor Doug Menke from UGA, identified the tfec gene, which plays a critical role in reptile pigmentation.

Two chemical substances influencing skin pigmentation interact according to a reaction-diffusion model. This system is responsible for the formation of patterns that are reminiscent of the pelage of zebras, jaguars, and giraffes.

Observed variation in pigmentation and color morphological phenotypes provides evidence for genetic modulation of these phenotypes. (a) Homozygous cinnamon (codominant), heterozygous banana...

Mar 26, 2025 · The motley and stripe alleles modify the coloration pattern. The wild-type pattern of the corn snake (Fig. 1A) consists of dorsal and lateral red blotches on an orange background, whereas the ventral scales exhibit black and white checkers. The Motley phenotype (Fig. 1B) is characterized by elongated dorsal blotches that tend to fuse together at the edges and reduced and less well-defined ...

May 6, 2022 · Modeling flower pigmentation patterns using physical simulation ofers the potential for several advantages over texture mapping. These models may, for instance, be used to au-tomatically create a diverse population of flowers by slightly modifying their parameters, geometries, and initial conditions.

1 day ago · The A gene regulates the presence or absence of anthocyanin pigmentation throughout the plant and a is epistatic to D, which regulates the pattern of axil ring pigmentation 45. Axil pigmentation ...

Sep 12, 2020 · Instead of a variable, you can use literal values in patterns (like "quit", 42, or None). This allows you to write: A pattern like ["get", obj] will match only 2-element sequences that have a first element equal to "get".

Nov 8, 2016 · It supports constraint-based frequent sequential pattern mining. Here is an example that shows how to mine a sequence database while respecting an average constraint for the prices of the patterns found.