Genetic clan — E · S/–

Black, Blue, Lavender & Mottled Brahma

The black clan groups every variety whose base is extended black (E) — the allele that suppresses all phaeomelanin (red/gold) and produces solid, uniform eumelanin (black) across the entire bird. From this foundation, two independent dilution routes produce blue and lavender; a separate modifier adds mottling. All birds in this clan at Wolfhoeve carry the silver gene (S). White also belongs here — produced by dominant white (I) over the extended black base, with the black genetically present but visually suppressed.

How the Black clan works

The extended black allele (E) at the e-locus is dominant over all other e-locus alleles. A bird carrying even one copy of E will show solid black plumage unless a dilution or suppressor gene is present. At Wolfhoeve all black clan birds are homozygous (E/E) for genetic predictability.

Two independent dilution routes:

Blue (Bl gene, chromosome 11) — a single dominant dilution. One copy (Bl/bl+) produces even slate-blue; two copies (Bl/Bl) produce irregular splash. Blue breeds as 50% blue, 25% black, 25% splash from two blue parents. Blue is dose-dependent and does not breed true.

Lavender (lav gene, chromosome 26) — an autosomal recessive. Two copies (lav/lav) are required for expression. Lavender produces a softer, more uniform, pinkish grey-lilac dilution than blue — it affects both the feather structure and pigment deposition differently, producing a characteristic "dirty" or "silky" sheen. Lavender breeds true from lav/lav × lav/lav crosses.

Mottling (mo gene) — a separate recessive modifier that adds a white spot to the tip of every feather. Mottling increases with each moult. It can be combined with black, blue, or lavender independently.

White — dominant white (I gene) suppresses the expression of pigment in the feather, producing a white bird over the extended black genetic background. The bird is genetically black but phenotypically white.

Clan foundation

E/Eextended black — solid black base
S/–silver gene — all birds carry S

Dilution route 1 — Blue series

bl+/bl+no blue — solid black
Bl/bl+one copy — even slate-blue
Bl/Bltwo copies — irregular splash

Dilution route 2 — Lavender

lav/lavhomozygous recessive — grey-lilac; breeds true

Additional modifier

mo/momottling — white tip on each feather, any base
I/–dominant white — suppresses all pigment expression

Full breeding analysis at chickencolorstandards.com.

Varieties we breed

Eight varieties across the extended black base — the full range from solid black to white, through blue, lavender, splash, and three mottled combinations.

Black

Established
E · S/– · bl+/bl+ Standard: EE, British Poultry Standards, NBS/Avicultura; established in multiple countries

Solid, deep black throughout, with a green-black gloss in strong light — particularly on the hackle and tail. The Brahma's large surface area, broad feathering, and upright posture make all-black plumage exceptionally striking. There is nowhere for a color defect to hide: any brassing, purple barring, or white in the flights is immediately visible. On a well-maintained, fully feathered giant Brahma, black is one of the most powerful color varieties in any breed.

Sexual dimorphism: No significant dimorphism in color. Both sexes should be solid black. Roosters develop a more pronounced green gloss on hackle and tail.
At Wolfhoeve: Black is our type anchor for the black clan — we select our best-structured birds in black first, then use them to support other programs in the clan. Black also serves as a reference point for evaluating blue evenness, since poorly developed blues are easy to identify when compared against a solid black standard.
View genotype on chicken-colors.info →

White

Recognized
E · S/– · I/I or I/i+ Standard: APA, EE, British Poultry Standards, NBS/Avicultura

The dominant white gene (I) suppresses the expression of all pigment in the feather cortex, producing a bird that appears pure white. The genetic background is extended black — the bird is genetically black but phenotypically white. On the giant Brahma frame — broad, deep, upright, with heavily feathered feet — an all-white bird has a sculptural, almost architectural quality. The feathers should be pure white with no cream, no blue tinge, and no stray black feathers. Any visible black indicates incomplete expression of the dominant white gene, which can occur in heterozygous birds (I/i+).

Sexual dimorphism: No dimorphism. Both sexes are solid white. Roosters may develop faint straw-yellow tinge on hackle in some lines, which is considered a fault.
At Wolfhoeve: We maintain white from our dominant white hen, which is the source of the I gene across several programs in the black clan and Co clan. Homozygous dominant white (I/I) birds breed true for white; heterozygous birds (I/i+) occasionally throw colored offspring.
View genotype on chicken-colors.info →

Blue

Established
E · S/– · Bl/bl+ Standard: EE, British Poultry Standards, NBS/Avicultura; established in multiple countries

One copy of the blue dilution gene softens black to an even, cool slate-blue. The Bl gene reduces the density of melanin granules in the feather barbules, producing a uniform diluted tone rather than the irregular pattern of splash. A well-developed blue should be even across the entire bird — no darker patches on the hackle, no lighter patches on the body — with a slight lacing visible on each feather as a secondary effect of the uneven distribution of diluted pigment within the barbule structure. The blue should be a medium slate, neither too dark (approaching black) nor too pale (approaching splash).

Sexual dimorphism: Both sexes show the same even blue dilution. Roosters typically develop darker blue on hackle and tail; hens show more visible lacing.
At Wolfhoeve: Blue breeds as 50% blue, 25% black, 25% splash from two blue parents. We select blue birds for evenness across the body and for the secondary lacing effect, which indicates good gene expression. We use blue × blue crosses to produce all three genotypes simultaneously for selection.
View genotype on chicken-colors.info →

Splash

Established
E · S/– · Bl/Bl Standard: EE, British Poultry Standards; established in multiple countries

Homozygous blue (Bl/Bl) produces the splash phenotype: the even dilution of blue breaks down into an irregular, high-contrast pattern of white areas interspersed with blue-grey patches and streaks. The pattern is caused by the extreme reduction of melanin granules in the Bl/Bl genotype — so few granules remain that their distribution becomes random and clumped. No two splash birds look alike. The effect on a giant Brahma is visually complex — the bird reads differently from every angle as the irregular pattern interacts with the feather structure and cushion.

Sexual dimorphism: Both sexes show splash. Roosters often have more concentrated blue-grey areas on hackle and tail; hens show more evenly distributed splash across the body.
At Wolfhoeve: Splash is produced by our blue × blue crosses. We select splash birds for clarity of pattern — the blue patches should be distinct against the white ground, not muddy or greyish overall — and for the same type criteria as all other black clan birds.
View genotype on chicken-colors.info →

Lavender

Rare
E · S/– · lav/lav Standard: Recognized in several European standards; rare in Brahma

The lavender gene (lav/lav) produces a uniform, soft grey-lilac dilution of black — distinct from blue in several ways. Lavender dilution is softer and more uniform than blue, without the secondary lacing effect. It also has a characteristic "silky" or "powdery" visual quality due to its effect on the feather barbule structure. Lavender breeds true from lav/lav × lav/lav: unlike blue, which segregates each generation, lavender is a stable homozygous recessive that produces 100% lavender offspring from two lavender parents. The color is particularly striking on a giant Brahma — the large, even surface of the breed amplifies the uniform, haze-like quality of the dilution.

Sexual dimorphism: Both sexes show lavender equally. Roosters develop a slightly deeper tone on hackle and tail; the overall impression is the same in both sexes.
At Wolfhoeve: Lavender is rare in Brahma. We are consolidating it in our black clan, with a focus on maintaining the even, uniform expression of the dilution while preserving type. Because lav is recessive, carrier birds (lav/+) are invisible — we identify them through progeny testing and maintain them as a source for the lav/lav program.
View genotype on chicken-colors.info →

Black Mottled

Established
E · S/– · bl+/bl+ · mo/mo Standard: EE, British Poultry Standards, NBS/Avicultura

The mottling gene (mo/mo) adds a clean white spot to the tip of every feather across a solid black base. The white should be a bright, clear spot — not cream, not diffuse — and should be surrounded by the full black of the feather body without any intermediate grey zone. The mottling typically increases with each successive moult: first-year birds may show 15–20% white; by the third year, 40% or more. The progression is one of the most distinctive qualities of mottled varieties. On a giant Brahma, the scale and density of the pattern across the large body surface produces an effect unlike any other breed.

Sexual dimorphism: Both sexes show mottling equally. The progression with age is the same in both. Roosters show the pattern most dramatically on the breast and hackle; hens display it most evenly across the whole body.
At Wolfhoeve: Black Mottled is one of our more established varieties. We select for spot clarity, spot size consistency, and evenness of distribution across the body. We reject birds where the spots are cream rather than white, or where the mottling is concentrated in one area and absent from another.
View genotype on chicken-colors.info →

Blue Mottled

Rare
E · S/– · Bl/bl+ · mo/mo Standard: Rare; recognized in some European standards

Mottling applied to blue: the slate-blue feather body is tipped with the same clean white spot as in black mottled. The contrast is softer — cool blue-grey interrupted by bright white — producing a more subtle and airy effect than the high-contrast black mottled. The blue and white interact with the Brahma's large, flat feather surface to produce a feathering that looks almost mosaic-like at close range. As with all mottled varieties, the white proportion increases with each moult.

Sexual dimorphism: Both sexes show blue mottled equally. The pattern and progression are identical to black mottled, only on the blue base.
At Wolfhoeve: Blue Mottled is a long-term program at Wolfhoeve. It requires both the blue dilution and the mottling gene to be consolidated simultaneously, which takes more generations than either modifier alone. We are approximately three years from producing birds that meet our type and color standards for this variety.
View genotype on chicken-colors.info →

Lavender Mottled

Rare
E · S/– · lav/lav · mo/mo Standard: Rare worldwide; among the most unusual Brahma varieties possible

Two dilution layers stacked on the extended black base: lavender dilutes black to grey-lilac, and then mottling adds white tips on top. The result is an extraordinarily delicate bird — pale grey-purple feathers each tipped with a clean white spot, across the entire body. The overall effect is hazy and soft, with the white tips adding structure and definition to the otherwise uniform lavender tone. This is among the rarest color combinations possible in Brahma and one of the most visually distinctive.

Sexual dimorphism: Both sexes show lavender mottled equally. The mottling pattern progresses with age in the same way as other mottled varieties.
At Wolfhoeve: Lavender Mottled is a long-term program that requires consolidating two separate recessive genes (lav and mo) simultaneously while maintaining type. Both genes must be homozygous for expression. This is a multi-year project that we are working toward. We are currently in the early stages of the lavender consolidation; mottling will be introduced once the lavender line is stable.
View genotype on chicken-colors.info →

Breeding the Black clan

The black clan is genetically the most complex in the flock because it contains two independent dilution routes (blue and lavender) plus mottling, each of which can be combined. Managing the separation between these programs requires careful pen planning and genotype tracking across generations.

Blue and lavender must never be crossed inadvertently: a blue/lavender double-dilute bird shows neither blue nor lavender cleanly but an intermediate that is difficult to classify and breed from predictably. We keep lavender birds in a separate pen from all blue-series birds.

Dominant white (I) is present in the flock through our white hen, which contributes to both the black clan white program and the Buff White Columbian program in the Co clan. Because I is dominant, any cross involving the white hen will produce 50% white offspring if she is heterozygous — this must be accounted for in planning hatches where white offspring are not the target.

In all long-term programs — blue mottled, lavender mottled — we select type first, color second. Birds from these programs that show excellent type but imperfect color are retained as breeding stock. Birds with excellent color but poor type are culled. This is non-negotiable for a long-horizon program: type loss is much harder to recover than color imprecision.

Genetics tool

For blue series calculations, lavender carrier identification, and multi-gene cross planning in the black clan, visit chickencolorstandards.com.

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