In addition you need to think about how two or three or more pairs of genes wiil affect each other. Another one of the old rat varieties, historically known as argente, and one of the most easily recognisable. The common color variations include brown, black, tan, gray, and white with both lighter and darker shades as well. The term genotype refers to the actual genetic makeup of a rat.
The fancy rat rattus norvegicus domestica is the domesticated form of rattus norvegicus, the. In my opinion, the result from the above pairing would be almost the same as the previous pairing with a slightly lower percentage of visual opal isabel s in the nest. Population genetics in animal breeding a series of books in agricultural science by pirchner, franz and a great selection of related books, art and collectibles available now at. Much of the data on this site comes from various genetics articles, rat fancy journalsnewsletters, and books published over the years. This smut is caused by genetic modifiers that have been successfully bred out of fawn silvers, leaving us with a clean gold color. While these are my main focus, i breed other varieties that compliment my main lines. The field of genetics has changed considerably since the first edition of genetics for cat breeders was published in 1971. I have done a lot of research on rat genetics and come up with some of my own assumptions. Featuring rat varieties blazed, silver fawn and agouti brown wolfysilver. Also known as silver fawn in the uk usually app a pink eyed agouti. To be a rich orange fawn, evenly ticked with silver guard hairs. Mink rat coat colour can vary from a warm dark grey brown to a warm light grey brown colour that can some times be confused as blue, till you see the colours up against each other. For instance a white rat that is genetically an albino may look just like a pink eyed white rat that is not albino, but whose color has been faded out from dilutions.
I have compiled everything i have learned from my own breeding and the information i have collected from various websites, books and other breeders. Description and physical characteristics of rats all. The main word youll find when trying to describe a silver fawn is orange. Amber is a light version of silver fawn silver fawn rat owned by gina hendricks, bred by linda. Silver oxford university press 1995 adapted for the web by. Ohhhh yes more than thought about it the trouble is there are literally s of colour combos and id have to code them all in.
Genetics of the old english game bantams is the must have book that all poultry enthusiast, hobbyists, and breeders should read. Rats can display patches of white that range from a small chest spot to a belly blotch to white with a pigmented head and beyond. To breed a burmese rat that looks like that, you need to cross them with very, very pale siamese, or ideally siamesebred himalayans, which are unfortunately not very easy to find. Agouti, with at least one copy of the fading yellow gene, and one copy of the chinchilla spotting gene acscsfy. A rat such as a blue with ruby eyes may be carrying other dilutes or may be affected by modifiers that lighten eye color and often coat color as well. You can learn about gregor mendel from pretty much any biology book or a web search. The new genetics download book free computer books download. Here youll find current best sellers in books, new releases in books, deals in books, kindle ebooks, audible audiobooks, and so much more. Rabbit coat color genetics information pertaining to the 2 d locus rabbit color genes carried by domestic rabbits. My recessive blazed are some of my very best genetics. Fawn arr not recommended to carry bb since it will lighten the body color.
Genetics by ann storey, national fancy rat society handbook, a pro rat a publication 1991, pp 3035. For more rat genetics, see the afrma rat genetics book, specific articles listed with the various. Rusting is commonly seen in black, russian blue and mink. They took a lot of work to get the temperaments right. Occasionally mock silver fawns have been bred, which are genetically american mink combined with red eye. The affected guard hairs will be scattered throughout the coat, and in some varieties this is desired, such as silver mink and silver fawn. It will be amplified by a copper deficiency or poor genetics. The following are the rat aoc colors as recognized by the american fancy rat and mouse association. Mouse genome informatics the jackson laboratory bar harbor, maine november 2001 revised august 2004, january 2008 please send question and comments to mgi user support.
Functional genomics in rodent models of hypertension. Blue fawn the blue fawn is a light tan with blue tiped hair and a blue nose. The blackbrown color is diluted significantly, creating a very pale creamy color. The demarcation between the top colour and white belly to be sharp and clear cut, devoid of irregularities and brindling. The manx rat is tailless due to a genetic mutation, and was named for the manx cat, which. Rere double rex this rat will look like a messy hairless rat. The coverage of the text includes growth, metabolism, reproduction, and endocrinology. An introduction to duck colour genetics was published in the domestic duck 2001, reprinted in paperback 2008. Although domestic rats usually belong to the same species, each is distinguished by the appearance of his coat, whiskers, markings, ear size and eye color. Find the top 100 most popular items in amazon books best sellers. Genetics general and miscellaneous, genetics, books.
The males in all of these varieties are very striking with bright colored plumage and a certain cockiness to their identity. Yoder, natural and artificial indian runner duck culture, pennsylvania, 1910. Most rat colour genetics are simply based on mendelian genetics, which is pretty much the standard genetics that most would learn in secondary school biology classes and aside from giving a little glossary to explain some of the key words used in genetics, i am not planning on going into any depth on the biology of genetics. An agouti rat becomes fawn, a beautiful light color that is almost. Mar 10, 2015 favorite books about dna and genetics for kids by amy knepper march 10, 2015 teaching about dna and genetics during the elementary years might seem like a strange idea, but even elementary kids love to learn about the code that writes our lives.
What would be a beginners book to learn about genetics. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Most of my knowledge of basic genetics comes from high school biology books i read as a child in elementary school as well as my introductory undergraduate biology class. Silver white color on nostrils, eye circles, jowls, belly and underside of tail.
Genetics animal breeding abebooks shop for books, art. Phenotype refers to the appearance of the rat regardless of the genes involved. Anyone working with rats can benefit from a general understanding of the study of inheritance for the appreciation of the many wonderful varieties that rats come in. John ayotte jan 1998 jan 2000 revised and photos added nov 2002 feb 2004 new info feb 2018. Richard dawkins goodreads author shelved 6 times as biology genetics avg rating 4.
The fawn gene is linked to obesity in mice, so selecting for slimmer animals is important. Welcome to rattit, a subreddit for all things pet rats. Agouti aa or aa arr is supposed to give a more desirable shade other dilutes make this color to cold or to muddy. It contains most of the basics and is well worth reading. This smut is caused by genetic modifiers that have been successfully bred out of fawn. The intensity of the orange pigment in the coat can also range from a light golden to a deep dark orange depending on the amount of modifiers and dilutes in the rat s genes. Go to rat genetics, part 1 go to rat genetics, part 3 go to rat genetics the what if chart.
Popular biology genetics books showing 150 of 128 the selfish gene paperback by. Breeding colors genetics rat genetics, part 1, rat genetics, part 2, rat genetics, part 3. For more rat genetics, see the afrma rat genetics book, specific articles listed with the various standards descriptions, and the articles on the info pages. They are from connie perez, and i shipped them in, in 2009. Black irish dumbo color is a good solid black throughout, showing no rustiness or white hairs. The definition between top color and white belly to be sharp and clear cut, devoid of brindling. Before taking the steps to participate in any of our research projects, please read the article here. Old english games are very popular because of their alertness, upright appearance, and confident personality. Old english game bantams are a single comb breed with the comb being dubbed cut for show purposes.
The origin of outbred laboratory rodents can be traced back to the 1500s. The book covers a wide spectrum of trait inheritance, from color variation up to the various genetic mutation and quirks. Fawn s can have a wide range of eye shades from bright red to a very dark, almost black ruby. Rats and their types, colors, and patterns pethelpful. Agouti is a term borrowed from genetics studies on that type of rat. Lots of the information here are the result of huge amounts of personal correspondence. In genetics, a chocolate would technicly be called a brown, but we will. Old english game bantams baby chicks and poultry books. Designed for comprehensive genetic courses not human genetics. Written in a way thats easy to understand as well as lots of colour photos. As of october 2019 i have taken on two new lines, fawn and masked.
The dlocus is fairly uncomplicated, since there are just two options for rabbit color at the dlocus dense, and dilute. Modern dog breeds have a wide range of coat colors, patterns, textures and lengths. The exception is the fawn hooded rat that may have a more distant origin lindsey et al. Agoutibased colors include but are not limited to agouti, cinnamon, and fawn. Silvers, 1972 genetics and immunology of sexlinked antigens. Genetics of the norway rat details the various genetic traits of norway rat.
Silver white color also should be on inside of ears, back of front feet, inside of hind feet. A gene fawn, f, reducing black and brown pig ment, and. Continuing the pioneering work of the late roy robinson, carolyn. Thanks for the a2a covering newsworthy aspects of contemporary biology. Although basic color genetics in the dog are fairly simple, when you get beyond the basics things can become quite complex. Ay fawn or sable tan with black whiskers and varying amounts of. Free genetics books download ebooks online textbooks.
Aoc have no white and have more than one color on the hairs. Also published in various issues of pro rat a and afrma rat and mouse tales, this article was the old standby for genetics information. At least two different genes are suspected of influencing the silver and golden coat colors found in many cat breeds. Probably due to the interaction of several genes polygenetic, including the russian blue gene rbrb. Rats come in a side variety of colors and patterns, from solid black to white, from dark browns to warm tans to creams, from slate grey to pale blue. The alleles at the m locus the silver locus protein homolog gene or silv, aka. Keep in mind when breeding ay mice that 2 copies of the ay gene is lethal that is, any ayay babies produced will be reabsorbed before birth.
Some colors are fawn, black, buff, chocolate, silver, cumberland blue, blue dusky, apricot dusky, apricot trout, blue trout, and gray. A rat that genetically has black fur and pink eyes aa pp, with no other dilutions will be champagne. Below is a breakdown of rat genetics, or at least my amateur understanding of them. The runner cannot help but lay large, white and green shelled eggs of a most delicious flavour. Pet rats come in a rainbow of colors, but most are descended from the brown rat, or rattus norvegicus. Agoutibased colors and fancy rat genes for genetics. Color genetics and compatability silver rabbit club. For more rat genetics, see the afrma rat genetics book, specific articles listed with the various standards descriptions, and the. Elsevier is a leading publisher of health science books and journals, helping to advance medicine by delivering superior education, reference information and decision support tools to doctors, nurses, health practitioners and students. Genetics textbooks study the structure, function, regulation, and variation of genes. The common laboratory rat, rattus norvegicus, has had a colorful history in its progression from feral. For this reason i do not have every variety, and do not breed.
Because there is so little information on rat genetics online, and so much different information depending on where you look, i did my best to come up with the most accurate information i could while researching. For decades the discussion of genetics was limited to observations of populations but now geneticists are beginning to look at the actual molecular mechanisms behind the traits and diseases seen in the cat. Silver fawn to be rich orange fawn, evenly ticked with silver guard hairs. Richard dawkins goodreads author shelved 6 times as biologygenetics. Russian blue agouti dumbo rex color is dark steel blue at the base of the hair with a fawn band on top. Rats make amazing pets, theyre smart, clean and highly intelligent. As with previous editions, this new fifth edition is praised for its engaging writing style, emphasis on research and experiments, numerous endofchapter problems, fullcolor design, and helpful pedagogy. Etsy your place to buy and sell all things handmade. Purpose this standard operating procedure sop describes guidelines for the management of rat breeding colonies. This analysis was based on the work of f m lancaster and r g jaap, and also took into account colours developed subsequent to 1963. It refers to the bandedhair coloration or pattern seen in elkhounds, wolves, and sable german shepherds, but can also be seen in varying amounts in the neck, shoulder, tail, croup and border markings in saddle.
The yellowred pigment is not affected very much, so an agouti with pink eyes will be a very light golden color called silver fawn or amber. Some of the more exotic colors are siamese, blue, silver black, silver fawn, lilac, cinnamon, blackeyed white, cinnamon pearl, lynx, silver agouti, silver. It is generally considered a field of biology, but it intersects frequently with many of the life sciences and is strongly linked with the study of information systems. This can cause fawn x fawn litter sizes to be smaller. If you have an interest in color patterns, comb types and morphological characters this book will lead you down the correct path to making your own experiments and crosses.
They are made in the same way as lilac in many other species put simply blue plus brown, and they have the distinctive pink tinge that lilac standards tend to call for. The fancy rat comes in many different combinations of colours, markings, and fur. The laboratory rat, rattus norvegicus springerlink. Hair will fall out and come back in periodically rere rexed note the curly whiskers and curly fur of the rat in the picture. Genetic evaluation of outbred rats from the breeders perspective. Known as russian dove rather than just dove in the uk for reasons beyond my power of comprehension, dove rats can be considered the russian analogue of the lilac rat. A velvet coated rat is impossible to pick out as a kitten, only becoming distinctive after the adult fur moults in this of course makes it difficult for breeders to select for in particular. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. Amber is a light version of silver fawn silver fawn rat owned by gina hendricks, bred by linda sinclair. This eye color is commonly seen on beige and fawn rats, and can sometimes be seen on mink, blue, havana, mocha, dove, and some other colors.
A rat that is aarrgg is not black, fawn, or blue, but the result of all the effects interaction. Blackeyed white hehe breed for more white on a black eyed color. In some breeds, the fawn is covered with smut, or dark ticking especially around the flanks, face, and ears. See also the rat biology article where do rat coat colors come from. Rat genetics genetics is a fascinating subject that deals with how traits are passed on from generation togeneration. Theoretical result from a normal silver fawn cock to a fawn silver hen or vice versa 20% normal fawn 20% normal silver 20% fawn silver 20% silver fawn 20% opal isabel. Free genetics books download ebooks online textbooks tutorials. The books homepage helps you explore earths biggest bookstore without ever leaving the comfort of your couch. Fawn is a well known and established color though it often goes by a different name. Jan 01, 2004 most inbred rat strains were derived from wistarrelated stocks and others derived from spraguedawley, but as these strains have a common origin there is relatively little genetic diversity. In the case of rats, populations of wildcaught animals were kept and bred to supply the. The genetics that give the pattern in the fawn and white can make for some very colourful birds when it is passed on. Ive done half the work on a horse version but id need a lot of time and energy to do one for fawnlings.
Occasionally mock silver fawns have been bred, which are genetically american mink combined with red eye dilute and agouti amomorr. The genetics and breeding of rats is my hobby and passion and i only breed varieties that interest me, or that i visually prefer. Check our section of free e books and guides on genetics now. These tend not to be as bright in colour as true pink eyed rats afrmacolor is a light golden fawn, evenly interspersed with light hairs.
Advanced genetics crc press book an advanced level volume for postgraduate students and researchers of genetics, cytogenetics biotechnology, biosciences, botany, and zoology which provides detailed coverage of mendelian, molecular, biochemical, immuno, human, mutagenesis, and evolutionary genetics. Robinsons genetics for cat breeders and veterinarians, 4e. In the ideal silver fawn, the pink eyed gene dilutes the black pigment to a bright, clear champagne, and the yellow pigment remains as a bright rich colour. See the afrma rat color standards book and the standards pages for photos. From the foundational aspects of dna and rna to gene mapping and heredity, our collection of genetics textbooks gathers together a comprehensive set of learning materials for this growing life sciences field. So i have quite a lot of generations of them bred here at my rattery.
Here is one example of phenotype for multiple gene pairs. Search the worlds most comprehensive index of fulltext books. No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. Combs in the american book of the dog, when the breed was first being developed, almost anything in the shape of a terrier having a long coat with blue on the body and fawn or silver coloured head and legs, with tail docked and ears trimmed, was received and admired as a yorkshire terrier. Below are some of the genetic code notes i have picked up over my years studying rat genetics in chart form so it is easier to read. Genetics is the study of genes, heredity, and variation in living organisms.