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首页> 外文期刊>Zoological Science >Developmental process of genital ducts in the medaka, Oryzias latipes
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Developmental process of genital ducts in the medaka, Oryzias latipes

机译：稻aka中生殖器官的发育过程

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The morphological development of genital ducts both intra-gonadal (ovarian cavity and efferent duct) and extra-gonadal (oviduct and sperm duct) was investigated in a model teleost, medaka. Oryzias latipes. The results showed that the extra-gonadal genital ducts contained two structural units, the anterior and posterior parts, in both sexes. Of special interest is a newly discovered process for the development of a posterior part of the oviduct. The anterior part of oviduct extended continuously from the ovarian cavity at the posterior end of the ovary. Then the posterior part of oviduct, which termed genital pore lip (GPL) in this study, was formed. This part results from invagination and cavitation of the cortex of urinogenital papillae (UGP) and forms the wall of the oviduct opening. We also suggest that the ventral region of urethra mesenchyme has an important role in extra-genital ducts formation.
机译：在一个模型硬骨鱼中，研究了性腺内（卵巢腔和传出管）和性腺外（输卵管和精子管）生殖管的形态发展。稻瘟病菌。结果显示，两性中性腺外生殖器导管包含两个结构单元，即前部和后部。特别令人感兴趣的是刚发现的输卵管后部发育过程。输卵管的前部在卵巢的后部从卵巢腔连续延伸。然后形成输卵管的后部，在本研究中称为生殖孔唇（GPL）。这部分是由于泌尿生殖器乳头（UGP）皮质的内陷和空化造成的，并形成输卵管开口的壁。我们还建议，尿道间质的腹侧区域在生殖器外导管形成中具有重要作用。

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