The Silky Dik-Dik Resource - No Posting Please

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. . . . New Year
2017 - n/a

. . . . Valentines Day
2017 - Valentines themed designs + Imperfect leopard release 62, 63, 64, 65, 66, 67

. . . . St. Patrick's Day
2017 - First Dominant White Silky 91

. . . . April Fools
2017 - Release of the tailless mutation 102, 103

. . . . Spring
2017 - Release tortoise gene 107, 108, 109, 110, 111, 112

. . . . Summer
2017 - African Animals 144, 145, 146, 147, 148

. . . . Halloween/Fall
2017 -

. . . . Winter Holiday
2017 -

. . . . Anniversary! (Dec 23)
2017 -

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Guide to Breeding and Correctly Using Dik-Dik Genetics

. . . . The Basics
Silky Dik-Dik genetics are designed to function realistically. Many aspects of it are based on equine genetics, as those are easily and frequently understood. Genes are represented by letters and separated by spaces. Each one has a different effect on the phenotype of the silky. Each gene has two copies, called alleles. For example, if a silky has Aa, A is one allele, and a is the other. During breeding, one allele from each parent gets passed onto the offspring.
When both alleles are the same (AA or aa), it is considered homozygous. When the alleles are different, it is considered heterozygous. Silkies have both dominant and recessive genes. Dominant genes express whether the silky is heterozygous or homozygous for that gene. Recessive genes are only expressed when the gene is homozygous (ex; soft, ss). If a recessive gene is heterozygous, the individual is known as a carrier(ex; soft carrier, Ss). A carrier can also be a silky who has a gene, but does not express it, such as soft on bay. Sometimes, genes have a variety of expression dependent on dominance. For example, the homozygous expression of the spotted gene creates more spots than the heterozygous expression.

Eye color in silkies will not be outlined by genetics. The artist chooses one of the parent's eye colors.
Tail length and genotype otherwise will be rolled for using proper genetics. See the guide below.

. . . . Understanding Genetics in Breeding
The most important thing to understand is how genes pass. As I said above, one allele from each parent gets passed down to the offspring. An easy way to help yourself determine possible genetic outcomes of offspring is to use a Punnett Square.



The simplest Punnett Square shows the possible outcomes when crossing one specific gene. You can take each gene in the genotype and cross them one and combine them in order to determine what genes you can expect in offspring. When completing a breeding, artists will work this way, assign a number 1-4 to each box, and use a random number generator to decide which outcome to use.

In the example to the left, two heterozygous Aa individuals were crossed. Each allele was given it's own section along the outside of the square. The alleles were then matched up into possible outcomes.

You can either do your Punnett Square by hand or use an online generator!
This one can be used to combine mulitple genes at once, but each gene can only be represented by one letter. You would have to adjust your code.
This one allows you to use more than one letter for your gene, but you have to work one at a time.

. . . . Rolling Rules
To Roll Twins: RNG is set up 1-10. If 5 is rolled, the resulting offspring will be twins.
Male or Female: RNG is set up 1-2 or a coin flip is used. 1/heads=male 2/tails=female
Punnett Square Numbering: Top left=1 Top Right=2 Bottom Left=3 Bottom Right=4
Eye Color: No rolling rules
XXY Syndrome: If (and only if) male is rolled for, set up RNG for 1-1000. If 500 is rolled, the silky will be XXY and sterile.
Tailless: If other parent is short tail or tailless, set up RNG 1-100. If 1, 25, 50, 75, or 100 is rolled the offspring will be tailless.

. . . . Breeding Example I
Let's say you are breeding a seal bay roan shield with long short tail with a red roan with short tail. Your breeding pair is Ee Asa Rnrn Shsh Mm x ee AsAw Rnrn MM.
Basically, the artist who completes the breeding will first complete a Punnett Square for each gene. Each possible outcome will be assigned a number 1-4. Then, rng will be used to pick which box will be used for the offspring.






To the left, I have completed the necessary squares and assigned numbers to the boxes. Each numbered square contains one allele from the male and one allele from the female, making it a possible gene for the offspring. I set up a random number generator to pick a number 1 through 4.

For the E allele, I rolled box 4.
For the A allele, I rolled box 2.
For the Rn allele, I rolled box 3.
For the Sh allele, I rolled box 2.
For the tail, I rolled box 1.

This would mean that the resulting offspring would have the genotype: ee Asa RnRn shsh MM.
Gender is determined by flipping a coin, or a similar generator. I set up rng to roll between 1 and 2, where 1=male and 2=female. I rolled 1, so the offspring is a male.

To conclude, the offspring is a male red roan with a short tail.
RNG will also be used to determine if you roll twins. The artist sets up RNG to roll between 1 and 10, where 5=twins. If the roll is positive for twins, the artist will simply re-roll each step to determine gender and genotype.