In this part of a Transparent scale series we will discuss influence of this gene on tail fin shape.See part I and part II to be updated about the previous content. There are some really strong evidences that Transparent scale is not able to shorten swords extensions in guppies. Despite this there are still opinions […]
gene examples
Moscow variegation
As works towards famous yet elusive Polish Pink Guppy progress I have some interesting variegated phenotypes appeared. Shining factors marks on peduncle and tail fin seems to me to show relation between guanophores and melanophores within Var expression. Appearance of variegation within phenotype seems to vary greatly. There are many factors which influence this subtle […]
Transparent scale part II
In this post: Transparent scale part I I have stated a hypothesis about gene known as Transparent scale. It was: “Transparent scale gene affects tail fin shape by changing the guanine synthesis levels. In my own line of roundtails from time to time broad tails has started to pop up. I have compared delta tail […]
Japan blue
Japan blue is easly identified by blue coloration of peduncle. Probably comes from feral population of Poecilia reticulata living in Japan waters. It is y-linked. Some breeders belive it is possible to jump it on X chromosome – others belive it is not possible. It is worth mentioning that population very similar in look to […]
Magenta
Very interesting gene. Autosomal dominant. It highlights metallic shine. It causes poliferation of melanophores – and probably that is how it influence metallic colors as well (melanophores and guanophores – responsible for shiny cover – seems to stay in strong connection, not only in case of this gene). It creates effect of pearl mass on […]
Half black
Well as the name suggest half of the body is black. From my experience it seems x-linked. There are rumors about Y-linked version.
Variations in well established lines.
I have the line with which I am working for some time now. Lately interesting phenotype has popped up. It is belived that golden is a single recessive mutation (gene was described long time ago). Fish need some tinkering here and there. I have two golden females so I guess it will be fun :). […]
Asian blau
Asian blau. Called blue cheat. It is a dominant gene, which is pretty interesting. In heterozygotous state it lowers synthesis of red erythrophores and probably in much lower level also yellow xantophores. It also slightly modifies guanine presence. In homozygotous state effect is much more visible as it almost completly removes red erythrophores and yellow […]
Transparent scale part I.
In my hobby hatchery I play with few genes that can be called supressors. Supressor gene means lower expression of a certain trait. In this little series I will present supressors of tail fin. So genes that supress tail shape – from big tail fin to short tail fin – in my breeding program from […]