tag:blogger.com,1999:blog-7010409378436372090.post231867664810450652..comments2024-03-24T05:22:46.517-04:00Comments on Musings of a Biologist and Dog Lover: Guess the Genotype #58Stephaniehttp://www.blogger.com/profile/08840844954903338887noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-7010409378436372090.post-88922193160915819832014-03-09T22:47:22.466-04:002014-03-09T22:47:22.466-04:00he wasn't a blue brindle, as he had dark pigme...he wasn't a blue brindle, as he had dark pigment, IMHO, he was probably a crème brindle. Greyhoundloverhttps://www.blogger.com/profile/08974971735966292768noreply@blogger.comtag:blogger.com,1999:blog-7010409378436372090.post-53328491033318006522012-06-19T17:47:22.721-04:002012-06-19T17:47:22.721-04:00That's true, Ella. It's a bit different fo...That's true, Ella. It's a bit different for dogs like this borzoi, though. Closed registries do make it easier to guess at what sort of color a dog will likely be and the genes behind it, if nothing else.Stephaniehttps://www.blogger.com/profile/08840844954903338887noreply@blogger.comtag:blogger.com,1999:blog-7010409378436372090.post-40156296491420984392012-05-29T02:40:54.250-04:002012-05-29T02:40:54.250-04:00For working huskies with an open studbook, the onl...For working huskies with an open studbook, the only thing that makes them a husky is that they run like hell - kind of like border collies only need eye like a border collie to qualify in their registry. So, they can have hodgepodge or even unknown pedigrees when it's working ability and not "blood purity" that qualifies the breed so strange genes could easily creep in regularly.Ellamennopeehttps://www.blogger.com/profile/07872808520360560298noreply@blogger.comtag:blogger.com,1999:blog-7010409378436372090.post-490856123045542622012-04-20T00:53:50.639-04:002012-04-20T00:53:50.639-04:00Thanks for the information. It can sometimes be di...Thanks for the information. It can sometimes be difficult to find out if certain genes have been confirmed in a breed or not. I still would like a genotypes explanation for coloration in a husky, for example. <br /><br />In addition, technically a dog has to be expressing either grizzle or sable to be a full-body brindle like Kobold appears to be under all of that white. Brindle is a gene that overlays black stripes over a base, and that base can be any of the genes on the Agouti locus: sable, agouti, tan point/saddled tan, or even recessive black (though the stripes wouldn't be visible). It all has to do with how the different canine color alleles interact with eachother. Some act with others, partially cover others, or sometimes even completely obscure them. In fact, all dogs genetically have some variant of the Agouti locus, no matter what their phenotype might be. My black Labrador could be sable under all of that black, you just can't tell because the dominant black gene is covering up the Agouti locus. I've been intending to work through the canine color genetics and do some explanation on what genes act with what others in which ways, since I've known even some very well versed people to become confused when it comes to how genes interact. <br /><br />Thanks also for the link. I found Kobold's pedigree through it and, lo and behold, he's described as a blue brindle! He doesn't appear to be in the picture, but dark blues can be quite hard to distinguish from blacks. This goes to show that these guesses are, indeed, only guesses and I can and will sometimes be wrong. I especially love to look at pedigrees as they can be very telling as to what a dog may be carrying.Stephaniehttps://www.blogger.com/profile/08840844954903338887noreply@blogger.comtag:blogger.com,1999:blog-7010409378436372090.post-3248121053571557462012-04-03T16:23:54.201-04:002012-04-03T16:23:54.201-04:00the genetic tests have now shown Grizzle/Sable to ...the genetic tests have now shown Grizzle/Sable to be in the gene,I doubt Kobold was a grizzle/Sable tho, i remember his breeder referring to his twin brother as a silver brindle. We refer to the grizzle version of dominant black as chinchilla, but also have a 'grizzled/domino/sable' colour in the breed also. We do have a sabling gene (black tipping) like a collie sable, as well as the grizzle/sable in the breed :)<br /><br />a picture pedigree of his brother is here<br />http://www.theborzoifiles.net/details.php?id=66904&gens=6Mielikki's Hunthttps://www.blogger.com/profile/03318742138744615477noreply@blogger.com