| First Author | Kelly EM | Year | 1957 |
| Journal | Mouse News Lett | Volume | 16 |
| Pages | 36 | Mgi Jnum | J:29744 |
| Mgi Id | MGI:77348 | Citation | Kelly EM (1957) Beige, bg. Mouse News Lett 16:36 |
| abstractText | Full text of MNL contribution: Research news: a) New mutants: 1. Beige, bg. Probably radiation induced (found on backcrossing grand-daughter of irradiated male). Completely recessive. Homozygotes viable and fully fertile. At birth the eye pigmentation of bg bg animals is slight. In adults, eye color may vary from ruby to almost black. On an A-B- background, bg bg diminishes ear and tail pigmentation. Pigmentation of dorsal hairs is as follows: the sub-terminal band is yellow; the middle portion dark grey; and the base is usually a very light gray although this is somewhat variable and tends to become darker in older animals. The light basal portion is not noticeable until about fifteen days after birth. Beige has also been observed in combination with A-bb. The eyes of newborn A-bb bg bg animals are lighter than either A-bb Bg- or A-B- bg bg. The fur color, too, is affected: the over-all appearance is cafe-au-lait. However, the relatively greater dilution effect on the base of the hair is not as pronounced in A-bb as in A-B- animals. The effect of bg bg in combination with other color genes has not yet been investigated. Allelism tests of bg with s, ru, si, b, a, cch, p, dse and pe all proved negative. (Kelly) |
