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.
Guppy Master Genetic Design Competition entries for 2019
First we have expectional bottom sword. Damn, isn’t that boy handsome gem? Second is beautifully colored speartail. Look at that female! She’s a beauty as well! Third golden double sword! Healthy and beautiful. A pair! You really cannot go much more better in double swords! Fourth – a speartail – so harmonous and gracefull that […]
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 […]
Reflections on russian base body colors theory
In my opinion there are few crucial facts in base body colors article which should be additionally discussed. I won’t go much into details of russian theory in this article assuming that a reader is familiar with them. Genotypes with full or reduced synthesis of given color are build of four parts: MM – means […]
Guppy color genetics by W. Storożew and S. Apriatin
This work has been oryginally translated from russian to polish by Monika Adaszewska and published on Warsaw aquarist forum fawa.pl. Authors: W. Storozhev and S. Apriatin GUPPY GENETIC (translation of a publication nr.1/2009)link to the original document where you can find photos which are currently lacking in a translation http://genetika-guppy.my1.ru/_ld/0/19_12009.pdf GUPPY COLOR GENETICS Entry We […]