CAJ | 학술논문

哺乳动物睾丸决定的诱导一般依赖于Sry基因,然而棕色田鼠指名亚种的Sry基因已经丢失,而棕色田鼠指名亚种雌雄个体依然有繁殖能力.我们在研究涉及性别决定的一些基因时,发现R-spondinl与性别决定有关.为了探讨R-spondinl在棕色田鼠中的性别决定中的作用,我们用RT-PCR检测R-spondinl在棕色田鼠性腺中的表达.研究结果表明R-spondinl仅在出生后不久的棕色田鼠指名亚种雌性个体的卵巢中表达,在出生后的棕色田鼠指名亚种雄性个体睾丸中未见其表达,这说明R-spondinl可能在棕色田鼠指名亚种卵巢发育中具有某种角色.
포유동물고환결정적유도일반의뢰우Sry기인,연이종색전서지명아충적Sry기인이경주실,이종색전서지명아충자웅개체의연유번식능력.아문재연구섭급성별결정적일사기인시,발현R-spondinl여성별결정유관.위료탐토R-spondinl재종색전서중적성별결정중적작용,아문용RT-PCR검측R-spondinl재종색전서성선중적표체.연구결과표명R-spondinl부재출생후불구적종색전서지명아충자성개체적란소중표체,재출생후적종색전서지명아충웅성개체고환중미견기표체,저설명R-spondinl가능재종색전서지명아충란소발육중구유모충각색.
The induction of testis determination is usually sry-dependent in mammals. However,Microtus,mandarinus mandarius appears to have lost sry. When we investigated some genes implicated in sex determiuation of M.m. mandarinus, we found that a R-spondin1 allele appeared to be linked to male sex This unusual case drove us to investigate the gene in genome of the animal. To citify the function of R-spondinl in sex determination of the animal, RT-PCR was performed. The results showed R-spondinl was expressed only in the ovary of the femal animal sholtly after birth. The result suggests Rspondinl may perform some role in development of the ovary of the female animal.