Yeah, it's hard to tell how the genetics worked to create a yellow albino. A kind of mutation, I think it's the only thing we can say.
Red Eyed Yellow Lab
- Thread starter Cowgrl4life
- Start date
I think fish have multiple pigment types. A yellow albino could result from a lack of melanin. I'm not usualhttp://en.wikipedia.org/wiki/Amelanismly a fan of wikipedia, but it'll do here. http://en.wikipedia.org/wiki/Amelanism
Amelanism in other vertebrates
Other vertebrates, such as fishes, amphibians, reptiles and birds, produce a variety of non-melanin pigments. Disruption of melanin production does not affect the production of these pigments. Non-melanin pigments in other vertebrates are produced by cells called chromatophores. Within this categorization, xanthophores are cells that contain primarily yellowish pteridines, while erythrophores contain primarily orangish carotenoids. Some species also possess iridophores or leucophores, which do not contain true pigments, but light-reflective structures that give iridescence. An extremely uncommon type of chromatophore, the cyanophore, produces a very vivid blue pigment.[4] Amelanism in fishes, amphibians, reptiles and birds has the same genetic etiology as in mammals: loss of tyrosinase function. However, due to the presence of other pigments, other amelanistic vertebrates are seldom white and red-eyed like amelanistic mammals.Without melanocortin 1 receptor to signal euemlanin production in melanocytes, this Labrador retriever has a yellow coat. His eyes and skin are normal.
From what I understand, the see through guppies (http://goldfishgarage.blogspot.com/2010/01/see-thru-guppy-images-from-philip.html) resulted from eliminating various different pigment types.
Lisa
Amelanism in other vertebrates
Other vertebrates, such as fishes, amphibians, reptiles and birds, produce a variety of non-melanin pigments. Disruption of melanin production does not affect the production of these pigments. Non-melanin pigments in other vertebrates are produced by cells called chromatophores. Within this categorization, xanthophores are cells that contain primarily yellowish pteridines, while erythrophores contain primarily orangish carotenoids. Some species also possess iridophores or leucophores, which do not contain true pigments, but light-reflective structures that give iridescence. An extremely uncommon type of chromatophore, the cyanophore, produces a very vivid blue pigment.[4] Amelanism in fishes, amphibians, reptiles and birds has the same genetic etiology as in mammals: loss of tyrosinase function. However, due to the presence of other pigments, other amelanistic vertebrates are seldom white and red-eyed like amelanistic mammals.Without melanocortin 1 receptor to signal euemlanin production in melanocytes, this Labrador retriever has a yellow coat. His eyes and skin are normal.
From what I understand, the see through guppies (http://goldfishgarage.blogspot.com/2010/01/see-thru-guppy-images-from-philip.html) resulted from eliminating various different pigment types.
Lisa
