Basic Color Genetics - Revision history

BCAdmin at 18:36, 16 August 2025

2025-08-16T18:36:51Z

BCAdmin at 14:58, 10 March 2024

2024-03-10T14:58:30Z

← Older revision		Revision as of 14:58, 10 March 2024
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	The Agouti gene has three variable Alleles. Agouti is the most dominant followed by Tan, and then Self is the most recessive.		The Agouti gene has three variable Alleles. Agouti is the most dominant followed by Tan, and then Self is the most recessive.

	Agouti ~~locus's~~ - expresses the ~~"wild color"~~ which is the banding of the individual hairs. Agouti is the most ~~Dominant~~ of the three Alleles present on Gene Marker ~~"A"~~. Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring ~~or portion of the Rabbit~~ , and the ~~Solid~~ color of the ~~pheomelanin on the bottom~~.		Agouti locus’s - expresses the “wild color” which is the banding of the individual hairs. Agouti is the most Dominate of the three Alleles present on Gene Marker “A”. Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring too, and Chinchilla, also called Squirrel, or depending on the base pigment color that presents along with Agouti these base patterns have different names, I will cover this more when we get to the B loci. Other Agouti based colors that have the banding modified by other genes, markers, and modifiers, are Red, Steel, Harlequin and Ermine
	~~A few Color Patterns~~ that are ~~tan based are~~ ,~~Tan~~, ~~Marten, Otter.~~		Agouti gives a peppering of the darkest color on the tip of the hair shaft and will look black, choclate, lilac or blue over the rabbit , and the Solid color of the pheomelanin in the middle band fading to a grey color at the base of the shaft. on the bottom.
			A few Color Patterns that are tan based are ,Tan, Marten, Otter.
	~~Their is~~ a ~~third loci~~ on ~~this gene. "a" is~~ the ~~most recessive Allele on~~ the ~~"A"~~ ~~locus~~, in ~~order for it to be expressed it has to be Homozygous which mean both alleles on~~ the ~~gene have~~ to ~~have~~ the ~~recessive "a". If~~ the ~~animal has two recessive alleles it will have a solid colored hair~~ shaft. ~~If any other Allele from~~ the ~~"A" locus is present it will dominate the "a" and cancel it out~~.
	~~The "aa" locus expresses itself as a "self" colored rabbit, a "self " colored rabbit is as usually solid color rabbit~~ that ~~is expressive it's base color as controlled by the B locus , and sometimes modified by the D and "e" locus which we will cover in detail later. Some examples of Self colored rabbits ,~~ are ~~Black~~, ~~Chocolate~~, ~~Lilac~~, ~~Blue, and Tort rabbits~~.



			Tan coloration is self Eumelanin on top , and pheomelanin on bottom. The pattern is typically the Eumelanin across the back and ears and face, and the pheomelanin circling the eyes, on the belly from chin to under tail, and the inside of the ears. "at" is dominate to self "a" , but recessive to "A" agouti. similar to how harlequin breaks up the color into distinct patches , "at" is expressing the solid color of the eumelanin on the top portion of the Rabbit , and the Solid color of the pheomelanin on the bottom. A few Color Patterns that are tan based are ,Tan, Martian, Otter.

			Their is a third loci on this gene. "a" is the most recessive Allele on the "A" locus, in order for it to be expressed it has to be Homozygous which mean both alleles on the gene have to have the recessive "a". If the animal has two recessive alleles it will have a solid colored hair shaft. If any other Allele from the "A" locus is present it will dominate the "a" and cancel it out. The "aa" locus expresses itself as a "self" colored rabbit, a "self " colored rabbit is as usually solid color rabbit that is expressive it's base color as controlled by the B locus , and sometimes modified by the D and "e" locus which we will cover in detail later. Some examples of Self colored rabbits , are Black, Chocolate, Lilac, Blue, and Tort rabbits.

98.97.85.21: /* Basic Color Genetics */

2023-12-20T05:04:40Z

Basic Color Genetics

← Older revision		Revision as of 05:04, 20 December 2023
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	The Agouti gene has three variable ~~Alles~~. Agouti is the most ~~dominate~~ followed by Tan, and then Self is the most recessive.		The Agouti gene has three variable Alleles. Agouti is the most dominant followed by Tan, and then Self is the most recessive.

	Agouti locus's - expresses the "wild color" which is the banding of the individual hairs. Agouti is the most ~~Dominate~~ of the three Alleles present on Gene Marker "A". Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring op portion of the Rabbit , and the Solid color of the pheomelanin on the bottom.		Agouti locus's - expresses the "wild color" which is the banding of the individual hairs. Agouti is the most Dominant of the three Alleles present on Gene Marker "A". Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring or portion of the Rabbit , and the Solid color of the pheomelanin on the bottom.
	A few Color Patterns that are tan based are ,Tan, ~~Martian~~, Otter.		A few Color Patterns that are tan based are ,Tan, Marten, Otter.

	Their is a third loci on this gene. "a" is the most recessive Allele on the "A" locus, in order for it to be expressed it has to be Homozygous which mean both alleles on the gene have to have the recessive "a". If the animal has two recessive alleles it will have a solid colored hair shaft. If any other Allele from the "A" locus is present it will dominate the "a" and cancel it out.		Their is a third loci on this gene. "a" is the most recessive Allele on the "A" locus, in order for it to be expressed it has to be Homozygous which mean both alleles on the gene have to have the recessive "a". If the animal has two recessive alleles it will have a solid colored hair shaft. If any other Allele from the "A" locus is present it will dominate the "a" and cancel it out.

BCAdmin: /* E-Extension */

2023-12-08T04:39:19Z

E-Extension

← Older revision		Revision as of 04:39, 8 December 2023
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	[[File:Geneiticx3 E loci.jpg\|thumb\|E loci]]		[[File:Geneiticx3 E loci v002.jpg\|thumb\|E loci]]

	The Extension gene has five separate markers that control the extend of the band of an Agouti rabbit. Ed dominate black the rabbit will appear self as it will extend the color at B to entire hair follicle, Es steel is the second most dominate color, this extends the color at the B loci almost to the tip on an agouti rabbit, so the follicle will be soil 3/4 of the way to the tip with just the tip showing a red/yellow/white coloring. , E-regular extension, this will preset the hair as it is, and Agouti rabbit will have banded color along the hair shaft, and a self or tan rabbit will have a soil hair coloration. ej-Japanese harliquen is a co-dominate recessive gene that expresses patches of alternating color, or Bridling on Agouti coats. ee-is non-extension, it is the opposite of dominate black and hide the color at B on Agouti rabbit extending the tip color to the base . and blocking out all Eumelanin.		The Extension gene has five separate markers that control the extend of the band of an Agouti rabbit. Ed dominate black the rabbit will appear self as it will extend the color at B to entire hair follicle, Es steel is the second most dominate color, this extends the color at the B loci almost to the tip on an agouti rabbit, so the follicle will be soil 3/4 of the way to the tip with just the tip showing a red/yellow/white coloring. , E-regular extension, this will preset the hair as it is, and Agouti rabbit will have banded color along the hair shaft, and a self or tan rabbit will have a soil hair coloration. ej-Japanese harliquen is a co-dominate recessive gene that expresses patches of alternating color, or Bridling on Agouti coats. ee-is non-extension, it is the opposite of dominate black and hide the color at B on Agouti rabbit extending the tip color to the base . and blocking out all Eumelanin.

BCAdmin: /* E-Extension */

2023-12-08T04:19:30Z

E-Extension

← Older revision		Revision as of 04:19, 8 December 2023
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	e Tort/ non-extension the opposite of the Steels with the light part of the Agouti hairs extended to the base. Non-extension strips out the eumelanin from the agouti coat and presents as a yellow/red solid colored rabbit, but it is		e Tort/ non-extension the opposite of the Steels with the light part of the Agouti hairs extended to the base. Non-extension strips out the eumelanin from the agouti coat and presents as a yellow/red solid colored rabbit, but it is
	common for these rabbits to still show the creamy/white underbelly that distinguishes the Agouti.		common for these rabbits to still show the creamy/white underbelly that distinguishes the Agouti.
			A Tort is a Self colored rabbit at A, " aa" and it expressed as a Reddish solid coat since the pheomelanin masks the Color at A, but they tend to express the eumelanin with darker points. similar to the Himalayan points, their Nose, Ears,
	A Tort is a Self colored rabbit at A, " aa" and it expressed as a Reddish solid coat since the pheomelanin masks the Color at A, but they tend to express the eumelanin with darker points. similar to the Himalayan points, their Nose, Ears, Feet and Tail will be shaded darker.		Feet and Tail will be shaded darker.

	====Mutations in the melanocortin 1 receptor (MC1R) gene are associated with coat colours in the domestic rabbit (Oryctolagus cuniculus)====		====Mutations in the melanocortin 1 receptor (MC1R) gene are associated with coat colours in the domestic rabbit (Oryctolagus cuniculus)====

96.94.236.94: /* D-Density */

2023-12-04T20:34:31Z

D-Density

← Older revision		Revision as of 20:34, 4 December 2023
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	d is recessive and Dilutees the color .		d is recessive and Dilutees the color .

	A frameshift mutation in the melanophilin gene causes the dilute coat colour in rabbit (Oryctolagus cuniculus) breeds		====A frameshift mutation in the melanophilin gene causes the dilute coat colour in rabbit (Oryctolagus cuniculus) breeds====
	L Fontanesi 1, E Scotti, D Allain, S Dall'olio		L Fontanesi 1, E Scotti, D Allain, S Dall'olio
	Affiliation		Affiliation

96.94.236.94: /* E-Extension */

2023-12-04T20:34:12Z

E-Extension

← Older revision		Revision as of 20:34, 4 December 2023
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	e Tort/ non-extension the opposite of the Steels with the light part of the Agouti hairs extended to the base. Non-extension strips out the eumelanin from the agouti coat and presents as a yellow/red solid colored rabbit, but it is common for these rabbits to still show the creamy/white underbelly that distinguishes the Agouti.		e Tort/ non-extension the opposite of the Steels with the light part of the Agouti hairs extended to the base. Non-extension strips out the eumelanin from the agouti coat and presents as a yellow/red solid colored rabbit, but it is
			common for these rabbits to still show the creamy/white underbelly that distinguishes the Agouti.

	A Tort is a Self colored rabbit at A, " aa" and it expressed as a Reddish solid coat since the pheomelanin masks the Color at A, but they tend to express the eumelanin with darker points. similar to the Himalayan points, their Nose, Ears, Feet and Tail will be shaded darker.		A Tort is a Self colored rabbit at A, " aa" and it expressed as a Reddish solid coat since the pheomelanin masks the Color at A, but they tend to express the eumelanin with darker points. similar to the Himalayan points, their Nose, Ears, Feet and Tail will be shaded darker.

			====Mutations in the melanocortin 1 receptor (MC1R) gene are associated with coat colours in the domestic rabbit (Oryctolagus cuniculus)====
			L Fontanesi 1, M Tazzoli, F Beretti, V Russo
			Affiliations 1DIPROVAL, Sezione di Allevamenti Zootecnici, Faculty of Agriculture, University of Bologna, Via F.lli Rosselli 107, Villa Levi - Coviolo, 42100 Reggio Emilia, Italy. luca.fontanesi@unibo.it
			PMID: 16978179 DOI: 10.1111/j.1365-2052.2006.01494.x
			https://pubmed.ncbi.nlm.nih.gov/16978179/

96.94.236.94: /* D-Density */

2023-12-04T20:32:59Z

D-Density

← Older revision		Revision as of 20:32, 4 December 2023
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	d is recessive and Dilutees the color .		d is recessive and Dilutees the color .

			A frameshift mutation in the melanophilin gene causes the dilute coat colour in rabbit (Oryctolagus cuniculus) breeds
			L Fontanesi 1, E Scotti, D Allain, S Dall'olio
			Affiliation
			1Division of Animal Sciences, Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Fanin 46, 40127, Bologna, Italy; Centre for Genome Biology, University of Bologna, 40126, Bologna, Italy.
			PMID: 24320228 DOI: 10.1111/age.12104
			https://pubmed.ncbi.nlm.nih.gov/24320228/

	===E-Extension===		===E-Extension===

96.94.236.94: /* =A-Agouti */

2023-05-11T16:13:12Z

=A-Agouti

← Older revision		Revision as of 16:13, 11 May 2023
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	Genotype is the black and white formula on the gene that makes a color. Phenotype ignores the genetics and says "it just looks like this one so that is how I will describe it". The standard uses Phenotype. But it is important to understand genotype when breeding.		Genotype is the black and white formula on the gene that makes a color. Phenotype ignores the genetics and says "it just looks like this one so that is how I will describe it". The standard uses Phenotype. But it is important to understand genotype when breeding.

	===A-Agouti==		===A-Agouti===

	~~lowed~~ by Tan, and then Self is the most recessive.
			The Agouti gene has three variable Alles. Agouti is the most dominate followed by Tan, and then Self is the most recessive.

	Agouti locus's - expresses the "wild color" which is the banding of the individual hairs. Agouti is the most Dominate of the three Alleles present on Gene Marker "A". Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring op portion of the Rabbit , and the Solid color of the pheomelanin on the bottom.		Agouti locus's - expresses the "wild color" which is the banding of the individual hairs. Agouti is the most Dominate of the three Alleles present on Gene Marker "A". Agouti presents as individually stripped hairs , with bands along each hair shaft. This will create a color ring when you blow into the coat. Standard basic Agouti colors are Chestnut also called castor, sandy, copper ,ect depending on what breed you are referring op portion of the Rabbit , and the Solid color of the pheomelanin on the bottom.

96.94.236.94: /* ="A" Agouti */

2023-05-11T16:10:22Z

="A" Agouti

← Older revision		Revision as of 16:10, 11 May 2023
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	Genotype is the black and white formula on the gene that makes a color. Phenotype ignores the genetics and says "it just looks like this one so that is how I will describe it". The standard uses Phenotype. But it is important to understand genotype when breeding.		Genotype is the black and white formula on the gene that makes a color. Phenotype ignores the genetics and says "it just looks like this one so that is how I will describe it". The standard uses Phenotype. But it is important to understand genotype when breeding.

	==="A" Agouti==		===A-Agouti==

	lowed by Tan, and then Self is the most recessive.		lowed by Tan, and then Self is the most recessive.