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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 33, No. 3, 2012, pp. 290-297
Bioline Code: zr12044
Full paper language: English
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 33, No. 3, 2012, pp. 290-297

 en Phenotype analysis and mutant gene location of ventral yellow mouse (VYSlac)
SHI, Mei-Lian; XU, Ping; YIN, Xiao-Shu; YANG, Wei-Wei; GU, Mei-Er; YU, LI-Ping; LIU, Gui-Jie & WU, Bao-Jin

Abstract

The ventri-yellow pigmentation mouse (temporarily named VYSlac) arose spontaneously in the C57BL/6J inbred mouse strain, found and bred by Shanghai SLAC Laboratory Animal Co., Ltd. VYSlac presented a special phenotype marked by yellow coat on the ventral surface of neck and trunk that was without melanin deposition but maintained a normal structure. The number of melanocytes in epidermis and melanin in hair follicle of the abdominal skin of the mutant mouse were less than that of their background strain, while there was no significant difference between the dorsal skins of the two strains. This mutant phenotype was inherited as single-gene dominant inheritance, confirmed by genetic experiment, and there was no significant difference between VYSlac and B6 for other biological parameters such as weight, anatomic and histological structures of major organs and blood physiology. When the linkage relationship between the genomic DNA samples of F2 48 mice (VYSlacD2F1×D2) and mutant phenotype were evaluated, the mutant gene was confirmed on chromosome 2 near D2Mit229. New microsatellite and SNP markers were selected to amplify genomic DNA samples of 196 F2 mice and the mutant gene was narrowed down to 5.3 Mb region between rs13476833 and rs27310903 on chromosome 2. The preliminary results of our phenotype analysis and gene location provides a solid basis for further identification of this mutant gene.

Keywords
Ventral yellow mouse(VYSlac); Phenotyping; Mapping

 
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