239:
224:
460:
128:
194:
416:
31:
261:
451:) are documented with point coloration or acromelansim. Recent documented evidence about acromelanism in dogs has only existed since 2017, when the first colorpoint dachshund was reported in the Czech Republic. More dogs have appeared since then, with the majority from the eastern Eurasian region and Canada. Genotyping the aforemention dachshund revealed a mutation in the tyrinase gene that results in a recessive colorpoint allele.
667:
209:
283:(or breeding cats that already possess the lynx point pattern). It is characterized by a mixture of the darkening (reduced) of point coloration with distinct tabby striping on the head, tail, and legs, and an otherwise uniform and comparatively pale body. It is an accepted pattern in some cat registries, but not others, for particular breeds (mostly Siamese-related).
183:
Because of the pigment restriction caused by the temperature sensitive tyrosinase, pointed cats' eyes are always shades of blue because the blue layer in the eye common to all cats is not covered by another color. The back of the eye also lacks pigment, giving colorpoint cats' pupils an eerie red and
518:
No pointed white rabbit can produce orange pigment; therefore, the points are always either black, blue, chocolate, or lilac. The resulting point coloration is sometimes in conjunction with a coat pattern, such as: white agouti, marten, broken, Vienna, or harlequin. (Such coats may not be recognized
163:
are born white, since the womb is uniformly warm. As the kitten ages, the cooler areas darken while warmer areas remain cream to white in color. Points are not limited to solid colors or dark colors. It is possible to have a red (orange color) or fawn (pale warm gray) point. It is also possible to
286:
Point coloration is inherent to the
Siamese breed and some other closely related breeds but with most other breeds the colorpoints (including lynx) were brought into some breed lines long after their establishment, but there are exceptions. For example, lynx point was a feature of some of the
179:
As the expression of the gene responsible for the pointed pattern is regulated by temperature, pointed cats who live in cooler environments often show increased darkening of their fur relative to cats who live in warmer climates, sometimes even developing large dark areas along their sides.
486:
Some rabbits that appear to be pointed white lack the red eyes, which indicates they are of different breeding. The following such coat colors are examples of those created, not with the ch gene, but with the cchl, cchd, or cchm gene in conjunction with the e gene:
932:
Bychkova, Elina; Viktorovskaya, Olga; Filippova, Elizaveta; Eliseeva, Zhanna; Barabanova, Larisa; Sotskaya, Maria; Markov, Anton (2021). "Identification of a candidate genetic variant for the
Himalayan color pattern in dogs".
159:; it fails to work at normal body temperatures, but becomes active in cooler areas of the skin. As a result, dark pigment is limited to the coldest areas of the body, that is, the extremities. Pointed
818:
Kumar CM, Sathisha UV, Dharmesh S, Rao AG, Singh SA (Mar 2011). "Interaction of sesamol (3,4-methylenedioxyphenol) with tyrosinase and its effect on melanin synthesis".
605:
1127:
595:
632:
The C - Albino locus gene causes dilution of yellow and black coloration, causing
Himalayan or Siamese markings depending on the allele is affected.
470:
All pointed white rabbits of true breeding have red eyes. The pointed white rabbit is created with the ch gene. Its presentation is typified in the
615:
238:
53:
pattern, with full expression only occurring on legs, ears, tail, face and scrotum (in males). It is most recognized as the coloration of
1183:
97:
in mammals is most often associated with the TYR gene, which controls the production of the tyrosinase enzyme that produces melanin.
783:
Petrij, F (2001). "A Second
Acromelanistic Allelomorph at the Albino Locus of the Mongolian Gerbil (Meriones unguiculatus)".
761:
1138:
17:
1085:"Rabbit Color Genetics: Self Chinchilla Explained – Rabbit Smarties : Creative Resources for Rabbit Keepers"
1084:
139:
and closely related Asian breeds, and is found in many
Western-developed modern breeds. It is a form of partial
223:
131:
New-born kittens suckling milk from their seal point mother cat. Colourpoint kittens are born solid-white.
977:
915:
260:
193:
724:
427:
1188:
184:
silver reflection in the dark, unlike a normally pigmented cat's shining silver-green or -blue.
1060:
527:
655:
329:
208:
8:
729:
684:
658:, has either Black (a very dark brown) or Chocolate, tipped on the Ears, Nose, and Feet.
1023:
978:"Identification of a candidate genetic variant for the Himalayan color pattern in dogs"
958:
891:
854:
753:
Muller and Kirk's Small Animal
Dermatology7: Muller and Kirk's Small Animal Dermatology
709:
555:
540:
475:
463:
1109:
997:
962:
950:
896:
882:
835:
800:
757:
319:
267:
245:
165:
105:
1035:
989:
942:
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827:
792:
749:
600:
565:
471:
364:
288:
94:
459:
831:
751:
714:
694:
580:
354:
296:
993:
946:
334:
127:
1177:
796:
719:
620:
550:
545:
399:
339:
215:
54:
1001:
954:
900:
839:
804:
704:
699:
654:
There is only one type of guinea pig with a pointed coat. It is called the
575:
560:
535:
384:
349:
344:
309:
292:
156:
50:
689:
570:
374:
369:
324:
230:
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136:
82:
74:
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1113:
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Hampshire sheep showing point coloration of their faces, ears, and legs
610:
379:
314:
252:
148:
121:
1039:
931:
359:
280:
248:
70:
30:
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breed (the first rabbit breed with a pointed white coat) and in the
590:
585:
394:
172:
point. A cat (of any breed) with this coloration is often called a
144:
140:
101:
46:
750:
Miller, W.H.; Griffin, C.E.; Campbell, K.L.; Muller, G.H. (2013).
666:
152:
389:
160:
112:, one from each parent, are needed for points to be expressed.
66:
169:
78:
188:
Comparison of different black (seal, sable) colourpoint cats
62:
58:
817:
120:"Lynx point" redirects here. For the Intel Chipset, see
104:
is also carried. Point is recessive for all animals. In
530:
that include varieties with point coloration include:
100:
The color point allele is at the C locus, where pure
279:
pattern is formed by mating a colorpoint cat with a
1175:
674:Some breeds of sheep exhibit point coloration.
1108:. American Rabbit Breeders Association. 2015.
1098:
1024:"Canine coat pigmentation genetics: a review"
1015:
1120:
969:
811:
627:
135:Point coloration in cats originated in the
1021:
852:
890:
454:
34:A cat with seal (black) point coloration.
975:
665:
458:
126:
29:
14:
1176:
853:D. L. Imes; et al. (April 2006).
782:
776:
743:
481:
88:
976:Bychkova, Elina (15 February 2021).
410:
24:
1184:Disturbances of human pigmentation
155:production. The mutated enzyme is
49:determined, temperature-dependent
25:
1200:
649:
1106:Standard of Perfection 2016-2020
913:
883:10.1111/j.1365-2052.2005.01409.x
522:
414:
259:
237:
222:
207:
192:
1156:
1077:
855:"Albinism in the domestic cat (
756:. Elsevier/Mosby. p. 620.
677:
176:to distinguish it from others.
1164:"AFRMA - Rat Genetics, part 1"
1053:
925:
907:
846:
635:Point colors in rats include:
13:
1:
736:
302:
27:Coloration of animal coat/fur
832:10.1016/j.biochi.2010.11.014
7:
1128:"Breed Standards 2016-2020"
661:
10:
1205:
994:10.1016/j.gene.2020.145212
947:10.1016/j.gene.2020.145212
406:
151:, an enzyme involved with
119:
115:
628:In fancy (domestic) rats
916:"Siberian Introduction"
859:) is associated with a
785:The Journal of Heredity
1135:British Rabbit Council
1022:Brancalion, L (2022).
797:10.1093/jhered/92.1.74
671:
467:
455:In rabbits and rodents
132:
85:, minks, and gerbils.
61:, but can be found in
57:and related breeds of
35:
669:
466:with point coloration
462:
130:
33:
330:Colorpoint Shorthair
464:Californian rabbits
1144:on 21 January 2018
1061:"Himalayan rabbit"
672:
541:American Fuzzy Lop
482:Rabbit coat colors
468:
426:. You can help by
133:
89:Locus C in Mammals
36:
1040:10.1111/age.13154
444:
443:
320:British Shorthair
295:, now called the
143:resulting from a
16:(Redirected from
1196:
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1149:
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1137:. Archived from
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843:
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780:
774:
773:
771:
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747:
725:Valais Blacknose
601:Netherland Dwarf
528:Breeds of rabbit
472:Himalayan rabbit
449:Canis familiaris
439:
436:
418:
411:
289:foundation stock
263:
241:
226:
211:
196:
108:, two copies of
43:point coloration
21:
18:Point coloration
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1028:Animal Genetics
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871:Animal Genetics
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606:Pointed Beveren
596:Mini Satin
525:
516:
495:Chocolate point
484:
457:
446:
440:
434:
431:
424:needs expansion
409:
404:
355:Neva Masquerade
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297:Neva Masquerade
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125:
118:
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28:
23:
22:
15:
12:
11:
5:
1202:
1192:
1191:
1189:Cat coat types
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1119:
1097:
1087:. 19 July 2011
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650:In guinea pigs
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613:
608:
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546:English Angora
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519:for showing.)
515:
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447:Rarely, dogs (
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174:colorpoint cat
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551:French Angora
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523:Rabbit breeds
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422:This section
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269:
268:tortoiseshell
262:
257:
254:
251:point (lynx)
250:
247:
240:
235:
232:
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210:
205:
202:
195:
190:
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177:
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166:tortoiseshell
162:
158:
154:
150:
147:that affects
146:
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138:
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98:
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86:
84:
80:
76:
72:
68:
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56:
52:
48:
44:
40:
32:
19:
1158:
1146:. Retrieved
1139:the original
1134:
1122:
1105:
1100:
1089:. Retrieved
1079:
1069:, retrieved
1067:, 2020-01-14
1064:
1055:
1043:. Retrieved
1031:
1027:
1017:
1005:. Retrieved
985:
981:
971:
938:
934:
927:
909:
877:(2): 175–8.
874:
870:
864:
860:
856:
848:
826:(3): 562–9.
823:
819:
813:
791:(1): 74–78.
788:
784:
778:
767:. Retrieved
752:
745:
700:Norfolk Horn
678:Sheep breeds
673:
653:
634:
631:
621:Satin Angora
576:Jersey Wooly
561:Cashmere Lop
526:
517:
485:
469:
448:
445:
432:
428:adding to it
423:
285:
276:
274:
229:Black sepia
199:Black point
182:
178:
173:
157:thermolabile
134:
109:
99:
92:
51:pigmentation
42:
39:Acromelanism
38:
37:
1148:11 February
1034:(1): 3–34.
867:) mutation"
857:Felis catus
730:Wensleydale
690:Dorset Down
685:Clun Forest
571:Holland Lop
556:Californian
504:Sable point
498:Lilac point
476:Californian
380:Snow Bengal
253:Snow Bengal
214:Black mink
83:guinea pigs
47:genetically
1178:Categories
1114:B018GVBJK4
1091:2020-09-02
1071:2020-09-02
941:: 145212.
861:tyrosinase
769:2015-05-17
737:References
710:Shropshire
645:Blue Point
642:Seal Point
510:Seal point
492:Blue point
435:March 2021
365:Ragamuffin
335:Highlander
303:Cat breeds
277:lynx point
149:tyrosinase
122:Lynx Point
1065:Knowledge
1045:21 August
1007:21 August
963:222302410
820:Biochimie
695:Hampshire
656:Himalayan
566:Himalayan
507:Sallander
400:Tonkinese
360:Peterbald
340:Himalayan
281:tabby cat
270:point cat
216:Tonkinese
1002:33039541
955:33039541
901:16573534
840:21144881
805:11336233
662:In sheep
591:Mini Rex
586:Mini Lop
581:Lionhead
385:Snowshoe
350:Napoleon
345:Javanese
310:Balinese
293:Siberian
246:rosetted
145:mutation
141:albinism
102:albinism
892:1464423
715:Suffolk
513:Siamese
478:breed.
407:In dogs
375:Siamese
370:Ragdoll
325:Burmese
291:of the
231:Burmese
201:Siamese
164:have a
161:kittens
153:melanin
137:Siamese
116:In cats
67:rabbits
55:Siamese
1112:
1000:
961:
953:
914:TICA.
899:
889:
838:
803:
760:
705:Oxford
390:Sphynx
315:Birman
266:Black
244:Black
93:The C
1142:(PDF)
1131:(PDF)
959:S2CID
919:(PDF)
720:Tunis
639:Sepia
616:Satin
536:Altex
501:Pearl
249:tabby
170:tabby
95:locus
79:sheep
45:is a
1150:2018
1110:ASIN
1047:2024
1009:2024
998:PMID
982:Gene
951:PMID
935:Gene
897:PMID
836:PMID
801:PMID
758:ISBN
395:Thai
275:The
106:cats
75:mice
71:rats
63:dogs
1036:doi
990:doi
986:769
943:doi
939:769
887:PMC
879:doi
865:TYR
828:doi
793:doi
611:Rex
430:.
168:or
59:cat
41:or
1180::
1133:.
1063:,
1032:53
1030:.
1026:.
996:.
988:.
984:.
980:.
957:.
949:.
937:.
895:.
885:.
875:37
873:.
869:.
834:.
824:93
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299:.
110:cs
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1038::
1011:.
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965:.
945::
921:.
903:.
881::
863:(
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830::
807:.
795::
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437:)
433:(
124:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
