Article
Regionally specific occurrence of an active sodefrin variant in the red-bellied newt.
Annals of the New York Academy of Sciences - 1 Apr 2005
Iwata Takeo, Ishizuka Yoko, Nakada Tomoaki, Toyoda Fumiyo, Yamamoto Kazutoshi, Conlon John M, Kikuyama Sakae
Abstract excerpt
Sodefrin (SIPSKDALLK) is a female-attracting pheromone that is secreted by the abdominal gland of the male red-bellied newt. We found that mRNA encoding a sodefrin variant, [Val(8)] sodefrin, is expressed exclusively in specimens captured in the Nara area of Japan. The synthetic peptide was tested for its activity. It attracted females from Nara, but not those from other regions, suggesting that there is a...
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